LT1815/LT1816/LT1817
1
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TYPICAL APPLICATION
FEATURES DESCRIPTION
Single/Dual/Quad 220MHz,
1500V/µs Operational Amplifi ers
with Programmable Supply Current
The LT
®
1815/LT1816/LT1817 are low power, high speed,
very high slew rate operational amplifi ers with excellent
DC performance. The LT1815/LT1816/LT1817 feature
higher bandwidth and slew rate, much lower input offset
voltage and lower noise and distortion than other devices
with comparable supply current. A programmable current
option (LT1815 and LT1816A) allows power savings and
fl exibility by operating at reduced supply current and speed.
The circuit topology is a voltage feedback amplifi er with the
slewing characteristics of a current feedback amplifi er.
The output drives a 100Ω load to ±3.8V with ±5V supplies.
On a single 5V supply, the output swings from 1V to 4V
with a 100Ω load connected to 2.5V. Harmonic distortion
is –70dB for a 5MHz, 2VP-P output driving a 100Ω load
in a gain of –1.
The LT1815/LT1816/LT1817 are manufactured on Linear
Technology’s advanced low voltage complementary bipolar
process and are available in a variety of TSOT-23, SO,
MSOP, SSOP and leadless DFN packages.
Programmable Current Amplifi er Switches
from Low Power Mode to Full Speed Mode
APPLICATIONS
n 220MHz Gain-Bandwidth Product
n 1500V/μs Slew Rate
n 6.5mA Supply Current per Amplifi er
n Programmable Current Option
n 6nV/√Hz Input Noise Voltage
n Unity-Gain Stable
n 1.5mV Maximum Input Offset Voltage
n 8μA Maximum Input Bias Current
n 800nA Maximum Input Offset Current
n 50mA Minimum Output Current, VOUT = ±3V
n ±3.5V Minimum Input CMR, VS = ±5V
n Specifi ed at ±5V, Single 5V Supplies
n Operating Temperature Range: –40°C to 85°C
n Space Saving MSOP and SSOP Packages
n Low Profi le (1mm) SOT-23 (ThinSOT™) and Leadless
DFN Packages
n Wideband Amplifi ers
n Buffers
n Active Filters
n Video and RF Amplifi cation
n Communication Receivers
n Cable Drivers
n Data Acquisition Systems
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Distortion vs Frequency
–
+
LT1815
40k
100Ω
VOUT
181567 TA01
–5V
ISET
500Ω
HS/LP
VIN
500Ω 5V
FREQUENCY (Hz)
–100
–70
–80
–90
–30
–40
–50
–60
181567 TA02
DISTORTION (dB)
100k 10M
1M
3RD HARMONIC 2ND HARMONIC
LOW POWER MODE
2ND HARMONIC
3RD HARMONIC FULL SPEED MODE
AV = 2
VS = ±5V
VO = 2VP-P
RL = 100Ω
LT1815/LT1816/LT1817
2
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ABSOLUTE MAXIMUM RATINGS
Total Supply Voltage (V+ to V–) ............................. 12.6V
Differential Input Voltage
(Transient Only, Note 2) ........................................... ±6V
Input Voltage ........................................................... ±VS
Output Short-Circuit Duration (Note 3) .......... Indefi nite
Operating Temperature Range .................–40°C to 85°C
(Note 1)
OUT 1
V–2
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
+IN3
5 V+
4 –IN
+–
TJMAX = 150°C, θJA = 250°C/W (NOTE 9)
1
2
3
6
5
4
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
V+
ISET
–IN
OUT
V–
+IN +–
TJMAX = 150°C, θJA = 230°C/W (NOTE 9)
1
2
3
4
8
7
6
5
TOP VIEW
NC
V+
OUT
NC
NC
–IN
+IN
V–
S8 PACKAGE
8-LEAD PLASTIC SO
+
–
TJMAX = 150°C, θJA = 150°C/W (NOTE 9)
TOP VIEW
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
5
6
7
8
9
4
3
2
1OUT A
–IN A
+IN A
V–
V+
OUT B
–IN B
+IN B
A
B
TJMAX = 125°C, θJA = 160°C/W (NOTE 9)
UNDERSIDE METAL INTERNALLY CONNECTED TO V–
1
2
3
4
OUTA
–INA
+INA
V–
8
7
6
5
V+
OUTB
–INB
+INB
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
A
B
TJMAX = 150°C, θJA = 250°C/W (NOTE 9)
1
2
3
4
5
OUT A
–IN A
+IN A
V–
V–
10
9
8
7
6
V+
OUT B
–IN B
+IN B
ISET
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
A
B
TJMAX = 150°C, θJA = 250°C/W (NOTE 9)
1
2
3
4
8
7
6
5
TOP VIEW
V+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN A
V–
S8 PACKAGE
8-LEAD PLASTIC SO
A
B
TJMAX = 150°C, θJA = 150°C/W (NOTE 9)
GN PACKAGE
16-LEAD PLASTIC SSOP NARROW
1
2
3
4
5
6
7
8
TOP VIEW
16
15
14
13
12
11
10
9
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
NC
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
NC
+
–
+
–
+
–
+
–
A
B
D
C
TJMAX = 150°C, θJA = 135°C/W
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
1
2
3
4
5
6
7
14
13
12
11
10
8
8
OUT A
–IN A
+IN A
V+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
+
–
+
++
–
––
AD
BC
TJMAX = 150°C, θJA = 100°C/W
PIN CONFIGURATION
LT1815 LT1815 LT1815
Specifi ed Temperature Range (Note 8) ....–40°C to 85°C
Maximum Junction Temperature ......................... 150°C
(DD Package) .................................................... 125°C
Storage Temperature Range ..................–65°C to 150°C
(DD Package) ..................................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)...................300°C
LT1816 LT1816 LT1816
LT1816 LT1817 LT1817
LT1815/LT1816/LT1817
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ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Input Offset Voltage (Note 4)
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
0.2 1.5
2.0
3.0
mV
mV
mV
Input Offset Voltage
(Low Power Mode) (Note 10)
LT1815S6/LT1816A, 40kΩ Between ISET and V–
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
27
9
10
mV
mV
mV
ΔVOS
ΔT
Input Offset Voltage Drift TA = 0°C to 70°C (Note 7)
TA = –40°C to 85°C (Note 7)
l
l
10
10
15
30
μV/°C
μV/°C
IOS Input Offset Current
TA = 0°C to 70°C
TA = –40°C to 85°C
l
l
60 800
1000
1200
nA
nA
nA
IBInput Bias Current
TA = 0°C to 70°C
TA = –40°C to 85°C
l
l
–2 ±8
±10
±12
μA
μA
μA
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at TA = 25°C (Note 8). VS = ±5V, VCM = 0V, unless otherwise noted. For the
programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V– through 75Ω or less, unless
otherwise noted.
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION
SPECIFIED
TEMPERATURE RANGE
LT1815CS5#PBF LT1815CS5#TRPBF LTUP 5-Lead Plastic TSOT-23 0°C to 70°C
LT1815IS5#PBF LT1815IS5#TRPBF LTVC 5-Lead Plastic TSOT-23 –40°C to 85°C
LT1815CS6#PBF LT1815CS6#TRPBF LTUL 6-Lead Plastic TSOT-23 0°C to 70°C
LT1815IS6#PBF LT1815IS6#TRPBF LTVD 6-Lead Plastic TSOT-23 –40°C to 85°C
LT1815CS8#PBF LT1815CS8#TRPBF 1815 8-Lead Plastic SO 0°C to 70°C
LT1815IS8#PBF LT1815IS8#TRPBF 1815I 8-Lead Plastic SO –40°C to 85°C
LT1816CDD#PBF LT1816CDD#TRPBF LAAR 8-Lead (3mm × 3mm) Plastic DFN 0°C to 70°C
LT1816IDD#PBF LT1816IDD#TRPBF LAAR 8-Lead (3mm × 3mm) Plastic DFN –40°C to 150°C
LT1816CMS8#PBF LT1816CMS8#TRPBF LTWA 8-Lead Plastic MSOP 0°C to 70°C
LT1816IMS8#PBF LT1816IMS8#TRPBF LTNQ 8-Lead Plastic MSOP –40°C to 85°C
LT1816ACMS#PBF LT1816ACMS#TRPBF LTYA 10-Lead Plastic MSOP 0°C to 70°C
LT1816AIMS#PBF LT1816AIMS#TRPBF LTXX 10-Lead Plastic MSOP –40°C to 85°C
LT1816CS8#PBF LT1816CS8#TRPBF 1816 8-Lead Plastic SO 0°C to 70°C
LT1816IS8#PBF LT1816IS8#TRPBF 1816I 8-Lead Plastic SO –40°C to 85°C
LT1817CGN#PBF LT1817CGN#TRPBF 1817 16-Lead Plastic SSOP 0°C to 70°C
LT1817IGN#PBF LT1817IGN#TRPBF 1817I 16-Lead Plastic SSOP –40°C to 85°C
LT1817CS#PBF LT1817CS#TRPBF LT1817CS 14-Lead Plastic SO 0°C to 70°C
LT1817IS#PBF LT1817IS#TRPBF LT1817IS 14-Lead Plastic SO –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
LT1815/LT1816/LT1817
4
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SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
enInput Noise Voltage Density f = 10kHz 6 nV/√Hz
inInput Noise Current Density f = 10kHz 1.3 pA/√Hz
RIN Input Resistance VCM = ±3.5V
Differential
1.5 5
750
MΩ
kΩ
CIN Input Capacitance 2pF
VCM Input Voltage Range Guaranteed by CMRR
T
A = –40°C to 85°C l
±3.5
±3.5
±4.2 V
V
CMRR Common Mode Rejection Ratio VCM = ±3.5V
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
75
73
72
85 dB
dB
dB
Minimum Supply Voltage Guaranteed by PSRR
T
A = –40°C to 85°C l
±1.25 ±2
±2
V
V
PSRR Power Supply Rejection Ratio VS = ±2V to ±5.5V
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
78
76
75
97 dB
dB
dB
Channel Separation VOUT = ±3V, RL = 100Ω, LT1816/LT1817
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
82
81
80
100 dB
dB
dB
AVOL Large-Signal Voltage Gain VOUT = ±3V, RL = 500Ω
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
1.5
1.0
0.8
3 V/mV
V/mV
V/mV
VOUT = ±3V, RL = 100Ω
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
0.7
0.5
0.4
2.5 V/mV
V/mV
V/mV
VOUT Maximum Output Swing RL = 500Ω, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±3.8
±3.7
±3.6
±4.1 V
V
V
RL = 100Ω, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±3.50
±3.25
±3.15
±3.8 V
V
V
IOUT Maximum Output Current VOUT = ±3V, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±50
±45
±40
±80 mA
mA
mA
Maximum Output Current
(Low Power Mode) (Note 10)
LT1815S6/LT1816A; 40kΩ Between ISET and V–;
VOUT = ±3V, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±50
±40
±30
±75 mA
mA
mA
ISC Output Short-Circuit Current VOUT = 0V, 1V Overdrive (Note 3)
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±100
±90
±70
±200 mA
mA
mA
SR Slew Rate AV = –1 (Note 5)
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
900
750
600
1500 V/μs
V/μs
V/μs
FPBW Full-Power Bandwidth 6VP-P (Note 6) 80 MHz
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at TA = 25°C (Note 8). VS = ±5V, VCM = 0V, unless otherwise noted. For the
programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V– through 75Ω or less, unless
otherwise noted.
LT1815/LT1816/LT1817
5
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SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
GBW Gain-Bandwidth Product f = 200kHz, RL = 500Ω, LT1815
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
150
140
130
220 MHz
MHz
MHz
f = 200kHz, RL = 500Ω, LT1816/LT1817
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
140
130
120
220 MHz
MHz
MHz
Gain-Bandwidth Product
(Low Power Mode) (Note 10)
LT1815S6/LT1816A; 40kΩ Between ISET and V–;
f = 200kHz, RL = 500Ω
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
35
30
25
55 MHz
MHz
MHz
–3dB BW –3dB Bandwidth AV = 1, RL = 500Ω 350 MHz
tr, tfRise Time, Fall Time AV = 1, 10% to 90%, 0.1V, RL = 100Ω 1 ns
tPD Propagation Delay AV = 1, 50% to 50%, 0.1V, RL = 100Ω 1.4 ns
OS Overshoot AV = 1, 0.1V; RL = 100Ω 25 %
tSSettling Time AV = –1, 0.1%, 5V 15 ns
THD Total Harmonic Distortion AV = 2, f = 5MHz, VOUT = 2VP-P, RL = 500Ω –70 dB
dG Differential Gain AV = 2, VOUT = 2VP-P, RL = 150Ω 0.08 %
dP Differential Phase AV = 2, VOUT = 2VP-P, RL = 150Ω 0.04 Deg
ROUT Output Resistance AV = 1, f = 1MHz 0.20 Ω
ISSupply Current LT1815
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
6.5 7
9
10
mA
mA
mA
LT1816/LT1817, per Amplifi er
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
6.5 7.8
10.5
11.5
mA
mA
mA
Supply Current (Low Power Mode)
(Note 10)
LT1815S6/LT1816A, 40kΩ Between ISET and V–,
per Amplifi er
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
1 1.5
1.8
2.0
mA
mA
mA
ISET ISET Pin Current (Note 10) LT1815S6/LT1816A
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
–150
–175
–200
–100 μA
μA
μA
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at TA = 25°C (Note 8). VS = ±5V, VCM = 0V, unless otherwise noted. For the
programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V– through 75Ω or less, unless
otherwise noted.
LT1815/LT1816/LT1817
6
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ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating temp-
erature range, otherwise specifi cations are at TA = 25°C (Note 8). VS = 5V, OV; VCM = 2.5V, RL to 2.5V, unless otherwise noted. For the
programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V– through 75Ω or less, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Input Offset Voltage (Note 4)
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
0.4 2.0
2.5
3.5
mV
mV
mV
Input Offset Voltage
(Low Power Mode) (Note 10)
LT1815S6/LT1816A, 40kΩ Between ISET and V–
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
27
9
10
mV
mV
mV
ΔVOS
ΔT
Input Offset Voltage Drift TA = 0°C to 70°C (Note 7)
TA = –40°C to 85°C (Note 7)
l
l
10
10
15
30
μV/°C
μV/°C
IOS Input Offset Current
TA = 0°C to 70°C
TA = –40°C to 85°C
l
l
60 800
1000
1200
nA
nA
nA
IBInput Bias Current
TA = 0°C to 70°C
TA = –40°C to 85°C
l
l
–2.4 ±8
±10
±12
μA
μA
μA
enInput Noise Voltage Density f = 10kHz 6 nV/√Hz
inInput Noise Current Density f = 10kHz 1.3 pA/√Hz
RIN Input Resistance VCM = 1.5V to 3.5V
Differential
1.5 5
750
MΩ
kΩ
CIN Input Capacitance 2pF
VCM Input Voltage Range (High) Guaranteed by CMRR
T
A = –40°C to 85°C l
3.5
3.5
4.1 V
V
Input Voltage Range (Low) Guaranteed by CMRR
T
A = –40°C to 85°C l
0.9 1.5
1.5
V
V
CMRR Common Mode Rejection Ratio VCM = 1.5V to 3.5V
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
73
71
70
82 dB
dB
dB
Channel Separation VOUT = 1.5V to 3.5V, RL = 100Ω, LT1816/LT1817
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
81
80
79
100 dB
dB
dB
Minimum Supply Voltage Guaranteed by PSRR
T
A = –40°C to 85°C l
2.5 4
4
V
V
AVOL
Large-Signal Voltage Gain VOUT = 1.5V to 3.5V, RL = 500Ω
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
1.0
0.7
0.6
2 V/mV
V/mV
V/mV
VOUT = 1.5V to 3.5V, RL = 100Ω
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
0.7
0.5
0.4
1.5 V/mV
V/mV
V/mV
VOUT Maximum Output Swing (High) RL = 500Ω, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
3.9
3.8
3.7
4.2 V
V
V
RL = 100Ω, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
3.7
3.6
3.5
4V
V
V
VOUT Maximum Output Swing (Low) RL = 500Ω, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
0.8 1.1
1.2
1.3
V
V
V
RL = 100Ω, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
1 1.3
1.4
1.5
V
V
V
LT1815/LT1816/LT1817
7
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SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IOUT Maximum Output Current VOUT = 1.5V or 3.5V, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±30
±25
±20
±50 mA
mA
mA
Maximum Output Current
(Low Power Mode) (Note 10)
LT1815S6/LT1816A; 40kΩ Between ISET and V–;
VOUT = 1.5V or 3.5V, 30mV Overdrive
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±30
±25
±20
±50 mA
mA
mA
ISC Output Short-Circuit Current VOUT = 2.5V, 1V Overdrive (Note 3)
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
±80
±70
±50
±140 mA
mA
mA
SR Slew Rate AV = –1 (Note 5)
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
450
375
300
750 V/μs
V/μs
V/μs
FPBW Full-Power Bandwidth 2VP-P (Note 6) 120 MHz
GBW Gain-Bandwidth Product f = 200kHz, RL = 500Ω, LT1815
TA = 0°C to 70°C
TA = –40°C to 85°C
l
l
140
130
120
200 MHz
MHz
MHz
f = 200kHz, RL = 500Ω, LT1816/LT1817
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
130
110
100
200 MHz
MHz
MHz
Gain-Bandwidth Product
(Low Power Mode) (Note 10)
LT1815S6/LT1816A; 40kΩ Between ISET and V–;
f = 200kHz, RL = 500Ω
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
30
25
20
50 MHz
MHz
MHz
–3dB BW –3dB Bandwidth AV = 1, RL = 500Ω 300 MHz
tr, tfRise Time, Fall Time AV = 1, 10% to 90%, 0.1V, RL = 100Ω 1.2 ns
tPD Propagation Delay AV = 1, 50% to 50%, 0.1V, RL = 100Ω 1.5 ns
OS Overshoot AV = 1, 0.1V; RL = 100Ω 25 %
tSSettling Time AV = –1, 0.1%, 2V 15 ns
THD Total Harmonic Distortion AV = 2, f = 5MHz, VOUT = 2VP-P, RL = 500Ω –65 dB
dG Differential Gain AV = 2, VOUT = 2VP-P, RL = 150Ω 0.08 %
dP Differential Phase AV = 2, VOUT = 2VP-P, RL = 150Ω 0.13 Deg
ROUT Output Resistance AV = 1, f = 1MHz 0.24 Ω
ISSupply Current LT1815
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
6.3 8
10
11
mA
mA
mA
LT1816/LT1817, per Amplifi er
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
6.3 9
12
13
mA
mA
mA
Supply Current (Low Power Mode)
(Note 10)
LT1815S6/LT1816A, 40kΩ Between ISET and V–
, per Amplifi er
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
0.9 1.5
1.8
2.0
mA
mA
mA
ISET ISET Pin Current (Note 10) LT1815S6/LT1816A
T
A = 0°C to 70°C
T
A = –40°C to 85°C
l
l
–150
–175
–200
–100 μA
μA
μA
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating temp-
erature range, otherwise specifi cations are at TA = 25°C (Note 8). VS = 5V, OV; VCM = 2.5V, RL to 2.5V, unless otherwise noted. For the
programmable current option (LT1815S6 or LT1816A), the ISET pin must be connected to V– through 75Ω or less, unless otherwise noted.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Differential inputs of ±6V are appropriate for transient operation
only, such as during slewing. Large sustained differential inputs can cause
excessive power dissipation and may damage the part.
LT1815/LT1816/LT1817
8
181567fb
Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum when the output is shorted indefi nitely.
Note 4: Input offset voltage is pulse tested and is exclusive of warm-up
drift.
Note 5: Slew rate is measured between ±2V at the output with ±3V input
for ±5V supplies and 2VP-P at the output with a 3VP-P input for single 5V
supplies.
Note 6: Full-power bandwidth is calculated from the slew rate:
FPBW = SR/2πVP
Note 7: This parameter is not 100% tested.
Note 8: The LT1815C/LT1816C/LT1817C are guaranteed to meet specifi ed
performance from 0°C to 70°C and are designed, characterized and
expected to meet the extended temperature limits, but are not tested at
–40°C and 85°C. The LT1815I/LT1816I/LT1817I are guaranteed to meet the
extended temperature limits.
Note 9: Thermal resistance (θJA) varies with the amount of PC board
metal connected to the package. The specifi ed values are for short
traces connected to the leads. If desired, the thermal resistance can be
substantially reduced by connecting Pin 2 of the TSOT-23, Pin 4 of the
SO-8 and MS8, Pin 5 of the MS10 or the underside metal of the DD
package to a large metal area.
Note 10: A resistor of 40k or less is required between the ISET and V– pins
of the LT1815S6 and the LT1816AMS. See the Applications Information
section for information on selecting a suitable resistor.
ELECTRICAL CHARACTERISTICS
Supply Current vs Temperature
Input Common Mode Range
vs Supply Voltage
Input Bias Current
vs Common Mode Voltage
Input Bias Current vs Temperature Input Noise Spectral Density Open-Loop Gain vs Resistive Load
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50 –25
0
SUPPLY CURRENT (mA)
4
12
10
050 75
181567 G01
2
8
6
25 100 125
VS = ±5V VS = ±2.5V
PER AMPLIFIER
SUPPLY VOLTAGE (±V)
0
V–
INPUT COMMON MODE RANGE (V)
1.0
1.5
2.0
V+
–2.0
–1.5
245
181567 G02
0.5
–1.0
–0.5
1367
TA = 25°C
ΔVOS < 1mV
INPUT COMMON MODE VOLTAGE (V)
–5.0
INPUT BIAS CURRENT (μA)
–2
–1
TA = 25°C
VS = ±5V
5.0
181567 G03
–3
–4 –2.5 02.5
0
TEMPERATURE (°C)
–50
–1.2
–0.8
0
25 75
181567 G0
4
–1.6
–2.0
–25 0 50 100 125
–2.4
–2.8
–0.4
INPUT BIAS CURRENT (μA)
VS = ±5V
VS = ±2.5V
FREQUENCY (Hz)
10 100
1
10
in
100
0.1
1
10
1k 10k 100k
181567 G05
TA = 25°C
VS = ±5V
AV = 101
RS = 10k
en
INPUT VOLTAGE NOISE (nV/Hz)
INPUT CURRENT NOISE (pA/Hz)
LOAD RESISTANCE (Ω)
100
60.0
OPEN-LOOP GAIN (dB)
62.5
65.0
67.5
70.0
75.0
1k 10k
181567 G0
6
72.5
TA = 25°C
VS = ±5V
VS = ±2.5V
LT1815/LT1816/LT1817
9
181567fb
TYPICAL PERFORMANCE CHARACTERISTICS
Output Short-Circuit Current
vs Temperature Output Current vs Temperature Output Impedance vs Frequency
Gain and Phase vs Frequency
Gain Bandwidth and Phase
Margin vs Temperature Gain vs Frequency, AV = 1
Open-Loop Gain vs Temperature
Output Voltage Swing
vs Supply Voltage
Output Voltage Swing
vs Load Current
TEMPERATURE (°C)
–50
OPEN-LOOP GAIN (dB)
70.0
72.5
75.0
25 75
181567 G07
67.5
65.0
–25 0 50 100 125
62.5
60.0
VS = ±5V
VO = ±3V
RL = 500Ω
RL = 100Ω
SUPPLY VOLTAGE (±V)
0
V–
OUTPUT VOLTAGE SWING (V)
1.0
1.5
2.0
V+
–2.0
–1.5
245
181567 G08
0.5
–1.0
–0.5
1367
TA = 25°C
ΔVOS = 30mV
RL = 100Ω
RL = 100Ω
RL = 500Ω
RL = 500Ω
OUTPUT CURRENT (mA)
–120
OUTPUT VOLTAGE SWING (V)
OUTPUT VOLTAGE SWING (V)
–2
40
181567 G09
–3
–4
–5
5
4
3
2
–80 –40 080 120
TA = 25°C
VS = ±5V
ΔVOS = 30mV
SINK
SOURCE
TEMPERATURE (°C)
–50
OUTPUT SHORT-CIRCUIT CURRENT (mA)
160
200
240
25 75
181567 G10
120
80
–25 0 50 100 125
40
0
SOURCE
SINK
VS = ±5V
VIN = ±1V
TEMPERATURE (°C)
–50
OUTUPT CURRENT (mA)
100
125
150
25 75
181567 G11
75
50
–25 0 50 100 125
25
0
ΔVOS = 30mV
VOUT = ±3V FOR VS = ±5V
VOUT = ±1V FOR VS = ±2.5V
SOURCE, VS = ±5V
SINK, VS = ±5V SOURCE, VS = ±2.5V
SINK, VS = ±2.5V
FREQUENCY (Hz)
0.01
OUTPUT IMPEDANCE (Ω)
0.1
100
1M100k10k 10M 100M
181567 G12
1
10 AV = 100
AV = 10
AV = 1
TA = 25°C
VS = ±5V
FREQUENCY (Hz)
10k
20
GAIN (dB)
PHASE (DEG)
30
40
50
60
100k 1M 500M100M10M
181567 G13
10
0
–10
–20
70
80
60
80
100
120
140
40
20
0
–20
160
180
TA = 25°C
AV = –1
RF = RG = 500Ω
±2.5V
±2.5V
±5V
±5V
GAIN
PHASE
TEMPERATURE (°C)
–50 –25
GAIN BANDWIDTH (MHz)
PHASE MARGIN (DEG)
180
240
050 75
181567 G14
36
40
38
220
200
25 100 125
GBW
VS = ±5V
GBW
VS = ±2.5V
PHASE MARGIN
VS = ±2.5V
PHASE MARGIN
VS = ±5V
RL = 500Ω
FREQUENCY (Hz)
1M
GAIN (dB)
–5
0
10M 100M 500M
181567 G15
–10
5TA = 25°C
AV = 1
VS = ±5V RL = 500Ω
RL = 100Ω
LT1815/LT1816/LT1817
10
181567fb
TYPICAL PERFORMANCE CHARACTERISTICS
Power Supply Rejection Ratio
vs Frequency
Common Mode Rejection Ratio
vs Frequency
Supply Current
vs Programming Resistor
Gain Bandwidth Product
vs Programming Resistor Slew Rate vs Input Step Slew Rate vs Supply Voltage
Gain vs Frequency, AV = 2 Gain vs Frequency, AV = –1
Gain Bandwidth and Phase
Margin vs Supply Voltage
FREQUENCY (Hz)
1M
GAIN (dB)
10M 100M 300M
181567 G16
5
0
–5
–10
10
TA = 25°C
AV = 2
VS = ±5V
RF = RG = 500Ω
CF = 1pF
RL = 500Ω
RL = 100Ω
FREQUENCY (Hz)
1M
GAIN (dB)
–5
0
10M 100M 300M
181567 G17
–10
5
TA = 25°C
AV = –1
VS = ±5V
RF = RG = 500Ω
CF = 1pF
RL = 500Ω
RL = 100Ω
SUPPLY VOLTAGE (±V)
0
GAIN BANDWIDTH (MHz)
PHASE MARGIN (DEG)
3
181567 G18
160 45
40
35
12 4
240
200
220
180
567
TA = 25°C GBW
RL = 500Ω
GBW
RL = 100Ω
PHASE MARGIN
RL = 100Ω
PHASE MARGIN
RL = 500Ω
FREQUENCY (Hz)
1k 10k 100k
40
POWER SUPPLY REJECTION RATIO (dB)
60
80
1M 10M 100M
181567 G19
20
0
100
–PSRR
+PSRR
TA = 25°C
AV = 1
VS = ±5V
FREQUENCY (Hz)
1k 10k 100k
40
COMMON MODE REJECTION RATIO (dB)
60
80
1M 10M 100M
181567 G20
20
0
100 TA = 25°C
VS = ±5V
RSET PROGRAMMING RESISTOR (Ω)
2
SUPPLY CURRENT (mA)
4
6
7
10 1k 10k 40k
181567 G21
0100
5
3
1
VS = ±5V
TA = 25°C
PER AMPLIFIER
RSET PROGRAMING RESISTOR (Ω)
50
GAIN BANDWIDTH (MHz)
100
150
200
250
10 1k 10k 40k
181567 G22
0100
VS = ±5V
TA = 25°C
RL = 500Ω
RL = 100Ω
INPUT STEP (VP-P)
0
300
SLEW RATE (V/μs)
900
1800
245
181567 G23
600
1500
1200
13678
TA =25°C
AV = –1
VS = ±5V
RF = RG = RL = 500Ω
SR–
SR+
SUPPLY VOLTAGE (±V)
0
400
SLEW RATE (V/μs)
600
245
181567 G24
800
1000
1200
1367
TA =25°C
AV = –1
VIN = 2VP-P
RF = RG = RL = 500Ω
SR+
SR–
LT1815/LT1816/LT1817
11
181567fb
181567 G30
TYPICAL PERFORMANCE CHARACTERISTICS
Distortion vs Frequency, AV = –1 Distortion vs Frequency, AV = 1
Small-Signal Transient,
AV = –1
Small-Signal Transient,
AV = 1
Large-Signal Transient,
AV = –1, VS = ±5V
Large-Signal Transient,
AV = 1, VS = ±5V
Slew Rate vs Temperature
Differential Gain and Phase
vs Supply Voltage Distortion vs Frequency, AV = 2
TEMPERATURE (°C)
–50
SLEW RATE (V/μs)
1600
2000
2400
25 75
181567 G25
1200
800
–25 0 50 100 125
400
0
SR+
VS = ±5V
SR–
VS = ±5V
SR+
VS = ±2.5V
SR–
VS = ±2.5V
AV = –1
RF = RG = RL = 500Ω
(NOTE 5)
TOTAL SUPPLY VOLTAGE (V)
4
0
DIFFERENTIAL PHASE (DEG)
DIFFERENTIAL GAIN (%)
0.02
0.06
0.08
0.10
68
181567 G26
0.04
0.12
0
0.02
0.06
0.08
0.10
0.04
TA = 25°C
10 12
DIFFERENTIAL GAIN
RL = 150Ω
DIFFERENTIAL PHASE
RL = 150Ω
FREQUENCY (Hz)
–100
–70
–80
–90
–30
–40
–50
–60
181567 G27
DISTORTION (dB)
100k 10M
1M
2ND HARMONIC
3RD HARMONIC
AV = 2
VS = ±5V
VO = 2VP-P
RL = 100Ω
FREQUENCY (Hz)
–100
–70
–80
–90
–30
–40
–50
–60
181567 G28
DISTORTION (dB)
100k 10M
1M
2ND HARMONIC
3RD HARMONIC
AV = –1
VS = ±5V
VO = 2VP-P
RL = 100Ω
FREQUENCY (Hz)
–100
–70
–80
–90
–30
–40
–50
–60
181567 G2
9
DISTORTION (dB)
100k 10M
1M
2ND HARMONIC
3RD HARMONIC
AV = 1
VS = ±5V
VO = 2VP-P
RL = 100Ω
181567 G33181567 G32181567 G31
LT1815/LT1816/LT1817
12
181567fb
Layout and Passive Components
As with all high speed amplifi ers, the LT1815/LT1816/
LT1817 require some attention to board layout. A ground
plane is recommended and trace lengths should be mini-
mized, especially on the negative input lead.
Low ESL/ESR bypass capacitors should be placed directly
at the positive and negative supply (0.01μF ceramics are
recommended). For high drive current applications, ad-
ditional 1μF to 10μF tantalums should be added.
The parallel combination of the feedback resistor and gain
setting resistor on the inverting input combine with the
input capacitance to form a pole that can cause peaking
or even oscillations. If feedback resistors greater than 1k
are used, a parallel capacitor of value:
C
F > RG • CIN/RF
should be used to cancel the input pole and optimize dy-
namic performance. For applications where the DC noise
gain is 1 and a large feedback resistor is used, CF should
be greater than or equal to CIN. An example would be an
I-to-V converter.
Input Considerations
The inputs of the LT1815/LT1816/LT1817 amplifi ers are
connected to the base of an NPN and PNP bipolar transis-
tor in parallel. The base currents are of opposite polarity
and provide fi rst-order bias current cancellation. Due to
variation in the matching of NPN and PNP beta, the polar-
ity of the input bias current can be positive or negative.
The offset current, however, does not depend on beta
matching and is tightly controlled. Therefore, the use of
balanced source resistance at each input is recommended
for applications where DC accuracy must be maximized.
For example, with a 100Ω source resistance at each input,
the 800nA maximum offset current results in only 80μV of
extra offset, while without balance the 8μA maximum input
bias current could result in a 0.8mV offset contribution.
The inputs can withstand differential input voltages of
up to 6V without damage and without needing clamping
or series resistance for protection. This differential input
voltage generates a large internal current (up to 80mA),
which results in the high slew rate. In normal transient
APPLICATIONS INFORMATION
closed-loop operation, this does not increase power dis-
sipation signifi cantly because of the low duty cycle of the
transient inputs. Sustained differential inputs, however,
will result in excessive power dissipation and therefore
this device should not be used as a comparator.
Capacitive Loading
The LT1815/LT1816/LT1817 are optimized for high band-
width and low distortion applications. They can drive a
capacitive load of 10pF in a unity-gain confi guration and
more with higher gain. When driving a larger capacitive
load, a resistor of 10Ω to 50Ω should be connected be-
tween the output and the capacitive load to avoid ringing
or oscillation. The feedback should still be taken from the
output so that the resistor will isolate the capacitive load
to ensure stability.
Slew Rate
The slew rate of the LT1815/LT1816/LT1817 is propor-
tional to the differential input voltage. Therefore, highest
slew rates are seen in the lowest gain confi gurations.
For example, a 5V output step in a gain of 10 has a 0.5V
input step, whereas in unity gain there is a 5V input step.
The LT1815/LT1816/LT1817 are tested for a slew rate
in a gain of –1. Lower slew rates occur in higher gain
confi gurations.
Programmable Supply Current
(LT1815/LT1816A)
In order to operate the LT1815S6 or LT1816A at full speed
(and full supply current), connect the ISET pin to the nega-
tive supply through a resistance of 75Ω or less.
To adjust or program the supply current and speed of the
LT1815S6 or LT1816A, connect an external resistor (RSET)
between the ISET pin and the negative supply, as shown in
Figure 1. The amplifi ers are fully functional with 0 ≤ RSET
≤ 40k. Figures 2 and 3 show how the gain bandwidth and
supply current vary with the value of the programming
resistor RSET. In addition, the Electrical Characteristics sec-
tion of the data sheet specifi es maximum supply current
and offset voltage, as well as minimum gain bandwidth
and output current at the maximum RSET value of 40k.
LT1815/LT1816/LT1817
13
181567fb
APPLICATIONS INFORMATION
Power Dissipation
The LT1815/LT1816/LT1817 combine high speed and large
output drive in small packages. It is possible to exceed
the maximum junction temperature specifi cation (150°C)
under certain conditions. Maximum junction temperature
(TJ) is calculated from the ambient temperature (TA), power
dissipation per amplifi er (PD) and number of amplifi ers
(n) as follows:
T
J = TA + (n • PD • θJA)
Power dissipation is composed of two parts. The fi rst is
due to the quiescent supply current and the second is due
to on-chip dissipation caused by the load current. The
worst-case load induced power occurs when the output
voltage is at one-half of either supply voltage (or the
maximum swing if less than one-half the supply voltage).
Therefore, PDMAX is:
P
DMAX = (V+ – V–) • (ISMAX) + (V+/2)2/RL or
P
DMAX = (V+ – V–) • (ISMAX) + (V+ – VOMAX) • (VOMAX/RL)
Example: LT1816IS8 at 85°C, VS = ±5V, RL=100Ω
P
DMAX = (10V) • (11.5mA) + (2.5V)2/100Ω = 178mW
T
JMAX = 85°C + (2 • 178mW) • (150°C/W) = 138°C
Circuit Operation
The LT1815/LT1816/LT1817 circuit topology is a true volt-
age feedback amplifi er that has the slewing behavior of a
current feedback amplifi er. The operation of the circuit can
be understood by referring to the Simplifi ed Schematic.
Complementary NPN and PNP emitter followers buffer
the inputs and drive an internal resistor. The input volt-
age appears across the resistor, generating current that
is mirrored into the high impedance node.
Complementary followers form an output stage that buf-
fers the gain node from the load. The input resistor, input
stage transconductance and the capacitor on the high
impedance node determine the bandwidth. The slew rate
is determined by the current available to charge the gain
node capacitance. This current is the differential input
voltage divided by R1, so the slew rate is proportional to
the input step. Highest slew rates are therefore seen in
the lowest gain confi gurations.
Figure 1. Programming Resistor Between ISET and V–
Figure 2. Gain Bandwidth Product vs RSET Programming Resistor
Figure 3. Supply Current vs RSET Programming Resistor
ISET
V–
181567 F01
V+
RSET
–5V
5V
–
+
LT1815S6
RSET PROGRAMING RESISTOR (Ω)
50
GAIN BANDWIDTH (MHz)
100
150
200
250
10 1k 10k 40k
181567 F02
0100
VS = p5V
TA = 25°C
RL = 500Ω
RL = 100Ω
RSET PROGRAMMING RESISTOR (Ω)
2
SUPPLY CURRENT (mA)
4
6
7
10 1k 10k 40k
181567 F03
0100
5
3
1
VS = ±5V
TA = 25°C
PER AMPLIFIER
LT1815/LT1816/LT1817
14
181567fb
Two Op Amp Instrumentation Amplifi er
181567 TA03
VIN
TRIM R5 FOR GAIN
TRIM R1 FOR COMMON MODE REJECTION
BW = 2MHz
R1
10k
R2
1k
R5
220Ω
R4
10k
R3
1k
VOUT
+
–
–
+
–
+1/2
LT1816
1/2
LT1816
GAIN R
R
R
R
R
R
RR
R
¨
ª
©
©
·
¹
¸
¸¥
§
¦´
¶
µ
¥
§
¦´
¶
µ
¨
ª
©
©
©
·
¹
¸
¸
¸
4
311
2
2
1
3
4
23
5102
SIMPLIFIED SCHEMATIC
181567 SS
OUT
+IN
–IN
BIAS
CONTROL
V+
V–
LT1815S6/LT1816AMS ONLY
ISET
R1
C
(One Amplifi er)
TYPICAL APPLICATIONS
LT1815/LT1816/LT1817
15
181567fb
TYPICAL APPLICATIONS
Photodiode Transimpedance Amplifi er
4MHz, 4th Order Butterworth Filter
–
+
LT1815
4.75k
1pF 1pF
–5V
PHOTODIODE
SIEMENS/
INFINEON
SFH213
–5V
181567 TA04
5V
0.01μF
OUTPUT OFFSET ≤1mV TYPICAL
BANDWIDTH = 30MHz
10% TO 90% RISE TIME = 22ns
OUTPUT NOISE (20MHz BW) = 300μVP-P
4.75k
–
+
1/2 LT1816
220pF
VIN
665Ω
232Ω
47pF
232Ω
–
+
1/2 LT1816
470pF
181567 TA05
VOUT
562Ω
274Ω
22pF
274Ω
LT1815/LT1816/LT1817
16
181567fb
PACKAGE DESCRIPTION
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
S6 Package
6-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1636)
1.50 – 1.75
(NOTE 4)
2.80 BSC
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
DATUM ‘A’
0.09 – 0.20 (NOTE 3)
S5 TSOT-23 0302 REV B
PIN ONE
2.90 BSC
(NOTE 4)
0.95 BSC
1.90 BSC
0.80 – 0.90
1.00 MAX
0.01 – 0.10
0.20 BSC
0.30 – 0.50 REF
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
3.85 MAX
0.62 MAX 0.95 REF
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
1.4 MIN
2.62 REF
1.22 REF
1.50 – 1.75
(NOTE 4)
2.80 BSC
0.30 – 0.45
6 PLCS (NOTE 3)
DATUM ‘A’
0.09 – 0.20 (NOTE 3)
S6 TSOT-23 0302 REV B
2.90 BSC
(NOTE 4)
0.95 BSC
1.90 BSC
0.80 – 0.90
1.00 MAX 0.01 – 0.10
0.20 BSC
0.30 – 0.50 REF
PIN ONE ID
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
3.85 MAX
0.62 MAX 0.95 REF
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
1.4 MIN
2.62 REF
1.22 REF
LT1815/LT1816/LT1817
17
181567fb
PACKAGE DESCRIPTION
DD Package
8-Lead Plastic DFN (3mm × 3mm)
(Reference LTC DWG # 05-08-1698 Rev C)
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.016 – .050
(0.406 – 1.270)
.010 – .020
(0.254 – 0.508)× 45°
0°– 8° TYP
.008 – .010
(0.203 – 0.254)
SO8 0303
.053 – .069
(1.346 – 1.752)
.014 – .019
(0.355 – 0.483)
TYP
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
1234
.150 – .157
(3.810 – 3.988)
NOTE 3
8765
.189 – .197
(4.801 – 5.004)
NOTE 3
.228 – .244
(5.791 – 6.197)
.245
MIN .160 ±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
.050 BSC
.030 ±.005
TYP
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
3.00 p0.10
(4 SIDES)
NOTE:
1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1)
2. DRAWING NOT TO SCALE
3. ALL DIMENSIONS ARE IN MILLIMETERS
4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE
MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE
5. EXPOSED PAD SHALL BE SOLDER PLATED
6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION
ON TOP AND BOTTOM OF PACKAGE
0.40 p 0.10
BOTTOM VIEW—EXPOSED PAD
1.65 p 0.10
(2 SIDES)
0.75 p0.05
R = 0.125
TYP
2.38 p0.10
14
85
PIN 1
TOP MARK
(NOTE 6)
0.200 REF
0.00 – 0.05
(DD8) DFN 0509 REV C
0.25 p 0.05
2.38 p0.05
RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS
APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED
1.65 p0.05
(2 SIDES)2.10 p0.05
0.50
BSC
0.70 p0.05
3.5 p0.05
PACKAGE
OUTLINE
0.25 p 0.05
0.50 BSC
LT1815/LT1816/LT1817
18
181567fb
PACKAGE DESCRIPTION
MS8 Package
8-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1660 Rev F)
MS Package
10-Lead Plastic MSOP
(Reference LTC DWG # 05-08-1661 Rev E)
MSOP (MS8) 0307 REV F
0.53 p 0.152
(.021 p .006)
SEATING
PLANE
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD
FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm
(.004") MAX
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD
FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
0.18
(.007)
0.254
(.010)
1.10
(.043)
MAX
0.22 – 0.38
(.009 – .015)
TYP
0.1016 p 0.0508
(.004 p .002)
0.86
(.034)
REF
0.65
(.0256) BSC
0o – 6o TYP
DETAIL “A”
DETAIL “A”
GAUGE PLANE
12
34
4.90 p 0.152
(.193 p .006)
8765
3.00 p 0.102
(.118 p .004)
(NOTE 3)
3.00 p 0.102
(.118 p .004)
(NOTE 4)
0.52
(.0205)
REF
5.23
(.206)
MIN
3.20 – 3.45
(.126 – .136)
0.889 p 0.127
(.035 p .005)
RECOMMENDED SOLDER PAD LAYOUT
0.42 p 0.038
(.0165 p .0015)
TYP
0.65
(.0256)
BSC
MSOP (MS) 0307 REV E
0.53 ± 0.152
(.021 ± .006)
SEATING
PLANE
0.18
(.007)
1.10
(.043)
MAX
0.17 –0.27
(.007 – .011)
TYP
0.86
(.034)
REF
0.50
(.0197)
BSC
12345
4.90 ± 0.152
(.193 ± .006)
0.497 ± 0.076
(.0196 ± .003)
REF
8910 76
3.00 ± 0.102
(.118 ± .004)
(NOTE 3)
3.00 ± 0.102
(.118 ± .004)
(NOTE 4)
4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MA
X
NOTE:
1. DIMENSIONS IN MILLIMETER/(INCH)
2. DRAWING NOT TO SCALE
3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD
FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.152mm (.006") PER SIDE
0.254
(.010) 0° – 6° TYP
DETAIL “A”
DETAIL “A”
GAUGE PLANE
5.23
(.206)
MIN
3.20 – 3.45
(.126 – .136)
0.889 ± 0.127
(.035 ± .005)
RECOMMENDED SOLDER PAD LAYOUT
0.305 ± 0.038
(.0120 ± .0015)
TYP
0.50
(.0197)
BSC
0.1016 ± 0.0508
(.004 ± .002)
LT1815/LT1816/LT1817
19
181567fb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
PACKAGE DESCRIPTION
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
S Package
14-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
1
N
234
.150 – .157
(3.810 – 3.988)
NOTE 3
14 13
.337 – .344
(8.560 – 8.738)
NOTE 3
.228 – .244
(5.791 – 6.197)
12 11 10 9
567
N/2
8
.016 – .050
(0.406 – 1.270)
.010 – .020
(0.254 – 0.508)× 45°
0° – 8° TYP
.008 – .010
(0.203 – 0.254)
S14 0502
.053 – .069
(1.346 – 1.752)
.014 – .019
(0.355 – 0.483)
TYP
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
.245
MIN
N
1 2 3 N/2
.160 ±.005
RECOMMENDED SOLDER PAD LAYOUT
.045 ±.005
.050 BSC
.030 ±.005
TYP
INCHES
(MILLIMETERS)
NOTE:
1. DIMENSIONS IN
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
GN16 (SSOP) 0204
12
345678
.229 – .244
(5.817 – 6.198)
.150 – .157**
(3.810 – 3.988)
16 15 14 13
.189 – .196*
(4.801 – 4.978)
12 11 10 9
.016 – .050
(0.406 – 1.270)
.015 p .004
(0.38 p 0.10) s 45o
0o – 8o TYP
.007 – .0098
(0.178 – 0.249)
.0532 – .0688
(1.35 – 1.75)
.008 – .012
(0.203 – 0.305)
TYP
.004 – .0098
(0.102 – 0.249)
.0250
(0.635)
BSC
.009
(0.229)
REF
.254 MIN
RECOMMENDED SOLDER PAD LAYOUT
.150 – .165
.0250 BSC.0165 p.0015
.045 p.005
INCHES
(MILLIMETERS)
NOTE:
1. CONTROLLING DIMENSION: INCHES
2. DIMENSIONS ARE IN
3. DRAWING NOT TO SCALE
* DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
LT1815/LT1816/LT1817
20
181567fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2001
LT 0909 REV B • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT1363/LT1364/LT1365 Single/Dual/Quad 70MHz, 1V/ns, C-Load™ Op Amps Wide Supply Range: ±2.5V to ±15V
LT1395/LT1396/LT1397 Single/Dual/Quad 400MHz Current Feedback Amplifi ers 4.6mA Supply Current, 800V/μs, 80mA Output Current
LT1806/LT1807 Single/Dual 325MHz, 140V/μs Rail-to-Rail I/O Op Amps Low Noise: 3.5nV/√Hz
LT1809/LT1810 Single/Dual 180MHz, 350V/μs Rail-to-Rail I/O Op Amps Low Distortion: 90dBc at 5MHz
LT1812/LT1813/LT1814 Single/Dual/Quad 3mA, 100MHz, 750V/μs Op Amps Low Power: 3.6mA Max at ±5V
C-Load is a trademark of Linear Technology Corporation.
Bandpass Filter with Independently Settable Gain, Q and fC455kHz Filter Frequency Response
Differential DSL Receiver
–
+
1/4 LT1817
RGRQ
R
R1
RG
R
C
C
R1
RF
RF
R
VIN
GAIN =
–
+
1/4 LT1817
–
+
–
+
1/4 LT1817 BANDPASS
OUT
1/4 LT1817
181567 TA06a
R1
RQ
Q =
1
2PRFC
fC =
FREQUENCY (Hz)
OUTPUT MAGNITUDE (6dB/DIV)
0
100k 1M 10M
181567 TA06b
R = 499Ω
R1 = 499Ω
RF = 511Ω
RQ = 49.9Ω
RG = 499Ω
C = 680pF
fC = 455kHz
Q = 10
GAIN = 1
VS = ±5V
VIN = 5VP-P
DISTORTION:
2nd < –76dB
3rd < –90dB
ACROSS FREQ
RANGE
NOISE: ≈60μV
OVER 1MHz
BANDWIDTH
DIFFERENTIAL
RECEIVE
SIGNAL
–
+
–
+181567 TA07
PHONE
LINE
+ DRIVER
– DRIVER
5V
–5V
1/2 LT1816
1/2 LT1816
V+
V–
