October 2009 Doc ID 6972 Rev 6 1/18
18
TS94x, TS94xA, TS94xB
Output rail-to-rail micropower operational amplifiers
Features
■Rail-to-rail output voltage swing
■Micropower consumption (1.2 µA)
■Single supply operation (2.5 V to 10 V)
■CMOS inputs
■Ultra low input bias current (1 pA)
■ESD protection (2 kV)
■Latch-up immunity (class A)
■Available in SOT23-5 micropackage
Applications
■Battery-powered systems (alarm)
■Portable communication systems (pagers)
■Smoke/gas/fire detectors
■Instrumentation and sensoring
■PH meter
Description
The TS94x (single, dual and quad) series are
operational amplifiers characterized for 2.5 V to
10 V operation over a -40° C to +85° C
temperature range.
They exhibit excellent consumption -1.2 µA, while
featuring 10 kHz gain bandwidth product, 1.5 mA
output capability and output rail-to-rail operation
- 2.85 V typical at 3 V with RL=10 kΩ.
The TS94x op-amps are ideal for battery-powered
systems, where very low supply current and
output rail-to-rail are required. Their very low
- 1 pA typical input bias current and constant
supply current over supply voltage enhance the
devices’ performance near the end of the battery
charge or battery life.
Table 1. Device summary
Reference Selection on offset voltage
TS94x TS941, TS942, TS944
TS94xA TS941A, TS942A, TS944A
TS94xB TS941B, TS942B, TS944B
1
2
34
5
Inverting input
Non-inverting input
Output
V
DD
V
CC
1
2
3
45
6
7
8
-
+
Inverting Input 1
N.C.
Non-inverting Input 1
V
DD
V
CC
Output 2
N.C.
N.C.
Inverting Input 2
Non-inverting Input 2
Non-inverting Input 1
DD
V
1
2
3
4
8
5
6
7
9
10
11
12
13
14
CC
V
Output 3
Output 4
Non-inverting Input 4
Inverting Input 4
Non-inverting Input 3
Inverting Input 3
-
+
-
+
-
+
-
+
Output 1
Inverting Input 1
Output 2
1
2
3
45
6
7
8
-
+-
+
Inverting Input 1
Output 1
Non-inverting Input 1
V
DD
V
CC
Output 2
Inverting Input 2
Non-inverting Input 2
TS941ILT
TS944ID-TS944IDT-TS944IPT
TS941ID-TS941IDT
TS942ID-TS942IDT-TS942IPT
www.st.com
Absolute maximum ratings and operating conditions TS94x, TS94xA, TS94xB
2/18 Doc ID 6972 Rev 6
1 Absolute maximum ratings and operating conditions
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
VCC Supply voltage (1)
1. All voltage values, except differential voltage are with respect to network terminal.
12 V
Vid Differential input voltage (2)
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
± VCC V
Vin Input voltage range (3)
3. The magnitude of input and output voltages must never exceed VCC +0.3 V.
VDD-0.3 to VCC+0.3 V
Tstg Storage temperature range -65 to +150 °C
TjMaximum junction temperature 150 °C
Rthja
Thermal resistance junction to ambient (4)
SOT23-5
SO-8
SO-14
TSSOP8
TSSOP14
4. Short-circuits can cause excessive heating and destructive dissipation. Rth are typical values.
250
125
103
120
100
°C/W
Rthjc
Thermal resistance junction to case (4)
SOT23-5
SO-8
SO-14
TSSOP8
TSSOP14
81
40
31
37
32
°C/W
ESD
HBM: human body model (5)
5. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
2kV
MM: machine model (6) (TS941, TS942)
6. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
200 V
CDM: charged device model (7)
TS941 - TS944IDT
TS942 - TS944IPT
7. Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
1.5
1
kV
Latch-up immunity 200 mA
Lead temperature (soldering, 10sec) 250 °C
TS94x, TS94xA, TS94xB Absolute maximum ratings and operating conditions
Doc ID 6972 Rev 6 3/18
Table 3. Operating conditions
Symbol Parameter Value Unit
VCC Supply voltage 2.5 to 10 V
Vicm Common mode input voltage range VDD -0.2 to VCC -1.3 V
Toper Operating free air temperature range -40 to + 85 °C
Electrical characteristics TS94x, TS94xA, TS94xB
4/18 Doc ID 6972 Rev 6
2 Electrical characteristics
Table 4. VCC = +2.5 V, VDD = 0 V, RL connected to VCC/2, Tamb = 25° C
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Vio
Input offset voltage
TS941/2/4
TS941/2/4A
TS941/2/4B
10
5
2
mV
ΔVio Input offset voltage drift 7 µV/°C
Iio Input offset current (1)
1. Maximum values include unavoidable inaccuracies of the industrial tests.
1 100 pA
Iib Input bias current (1) 1 150 pA
CMR Common mode rejection ratio 60 85 dB
SVR Supply voltage rejection ratio 50 78 dB
Avd
Large signal voltage gain
VO = 2 Vpp, RL = 1 MΩ100 dB
VOH
High level output voltage
VID = 100 mV, RL = 1 MΩ
RL = 10 kΩ
2.45
2.3
2.49
2.4
V
VOL
Low level output voltage
VID = -100 mV, RL = 1 MΩ
RL = 10 kΩ
1
100
5
200
mV
Io
Output source current
VID = 100 mV, VO = VDD
Output sink current
VID = -100 mV, VO = VCC
350
280
650
500
µA
ICC Supply current (per amplifier), AVCL = 1, no load 1.2 1.8 µA
GBP Gain bandwidth product, RL = 1 MΩ, CL = 50 pF 10 kHz
SR Slew rate, RL = 1 MΩ, CL = 50 pF 3 4.5 V/ms
φm Phase margin, CL = 50 pF 65 Degrees
TS94x, TS94xA, TS94xB Electrical characteristics
Doc ID 6972 Rev 6 5/18
Table 5. VCC = +3 V, VDD = 0 V, RL connected to VCC/2,Tamb = 25° C
(unless otherwise specified) (1)
1. All electrical values are guaranteed with correlation measurements at 2.5 V and 5 V.
Symbol Parameter Min. Typ. Max. Unit
Vio
Input offset voltage
TS941/2/4
TS941/2/4A
TS941/2/4B
10
5
2
mV
ΔVio Input offset voltage drift 7 µV/°C
Iio Input offset current (2)
2. Maximum values include unavoidable inaccuracies of the industrial tests.
1 100 pA
Iib Input bias current (2) 1 150 pA
CMR Common mode rejection ratio 60 85 dB
SVR Supply voltage rejection ratio 50 85 dB
Avd
Large signal voltage gain
VO = 2 Vpp,RL = 1 MΩ100 dB
VOH
High level output voltage
VID = 100 mV, RL = 1 MΩ
RL = 10 kΩ
2.9
2.8
2.99
2.85
V
VOL
Low level output voltage
VID = -100 mV, RL = 1 MΩ
RL = 10 kΩ
1
100
5
200
mV
Io
Output source current
VID = 100 mV, VO = VDD
Output sink current
VID = -100 mV, VO = VCC
680
650
1500
1300
µA
ICC Supply current (per amplifier), AVCL = 1, no load 1.2 1.8 µA
GBP Gain bandwidth product, RL = 1 MΩ, CL = 50 pF 10 kHz
SR Slew rate, RL = 1 MΩ, CL = 50 pF 3 4.5 V/ms
φm Phase margin, CL = 50 pF 65 Degrees
Electrical characteristics TS94x, TS94xA, TS94xB
6/18 Doc ID 6972 Rev 6
Table 6. VCC = +5 V, VDD = 0 V, RL connected to VCC/2, Tamb = 25° C
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Vio
Input offset voltage
TS941/2/4
TS941/2/4A
TS941/2/4B
10
5
2
mV
ΔVio Input offset voltage drift 7 µV/°C
Iio Input offset current (1)
1. Maximum values include unavoidable inaccuracies of the industrial tests.
1 100 pA
Iib Input bias current (1) 1 150 pA
CMR Common mode rejection ratio 60 85 dB
SVR Supply voltage rejection ratio 50 85 dB
Avd
Large signal voltage gain
VO = 2 Vpp, RL = 1 MΩ100 dB
VOH
High level output voltage
VID = 100 mV, RL = 1 MΩ
RL = 10 kΩ
4.9
4.8
4.99
4.85
V
VOL
Low level output voltage
VID = -100 mV, RL = 1 MΩ
RL = 10 kΩ
1
100
5
150
mV
Io
Output source current
VID = 100 mV, VO = VDD
Output sink current
VID = -100 mV, VO = VCC
3
3.7
4.5
5
mA
ICC Supply current (per amplifier), AVCL = 1, no load 1.2 1.85 µA
GBP Gain bandwidth product, RL = 1 MΩ, CL = 50 pF 10 kHz
SR Slew rate, RL = 1 MΩ, CL = 50 pF 3 4.5 V/ms
φm Phase margin, CL = 50 pF 65 Degrees
TS94x, TS94xA, TS94xB Electrical characteristics
Doc ID 6972 Rev 6 7/18
Figure 1. Supply current per amplifier vs.
supply voltage in overdrive
Figure 2. Supply current per amplifier vs.
supply voltage
in
Overdrive
0246810
Supply Voltage (V)
0.0
0.5
1.0
1.5
Supply Current (µA)
Vid = - 100mV
Tamb = 25°C
Vid = + 100mV
0246810
Supply Voltage (V)
0.0
0.5
1.0
1.5
2.0
Supply Current (µA)
Tamb = 25°C
Figure 3. Output short-circuit current vs.
temperature
Figure 4. Supply current per amplifier vs.
temperature
pp
-40 -20 0 20 40 60 80
-6
-4
-2
0
2
4
6
Output Short-circuit Current (mA)
Isink, Vcc=3V
Isource,Vcc=3V
Isink, Vcc=5V
Isource, Vcc=5V
Temperature (°C)
-40-200 20406080
Temperature (°C)
1.10
1.15
1.20
1.25
1.30
Supply Current (µA)
Vcc from 2.5V to 10V
Figure 5. Output short-circuit current vs.
supply voltage
Figure 6. Output short-circuit current vs.
output voltage
Supply
Voltage
24 6810
-30
-20
-10
0
10
20
30
Source
Sink
Output Short-Circuit Current (mA)
Supply Voltage (V)
Tamb = 25°C
Output
Voltage
Output Short-Circuit Current (mA)
Output Voltage (V)
012345
-8.0
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
8.0
Vcc = 5V
T = -40°C
T = +85°C
Source
Sink
T = -40°C
T = +25°C
T = +25°C
T = +85°C
Electrical characteristics TS94x, TS94xA, TS94xB
8/18 Doc ID 6972 Rev 6
Figure 7. Output short-circuit current vs.
output voltage
Figure 8. High level output voltage vs. supply
voltage
Output Short-Circuit Current (mA)
Output Voltage (V)
0123
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
Vcc = 2.6V
T = +85°C
Source
Sink
T = -40°C
T = -40°C
T = +25°C
T = +25°C
T = +25°C
T = +85°C
2.5
246 810
1
10
100
1,000
Voltage Referenced to Vcc (mV)
Supply Voltage (V)
RL tied to Vdd
Single Supply
Vid = +100mV
RL=10k ohm
RL=100k ohm
RL=1M ohm
High Level Output Voltage vs Supply Voltage
Voltage referenced to Vdd (mV)
Figure 9. Output short-circuit current vs.
output voltage
Figure 10. Low level output voltage vs. supply
voltage
Output Short-Circuit Current (mA)
Output Voltage (V)
01 2
-3.0
-2.0
-1.0
0.0
1.0
2.0
Vcc = 3V
T = -40°C
T = +85°C
Source
Sink
T = -40°C
T = +25°C
T = +25°C
T = +85°C
pg
3
Low
Level
Output
Voltage
vs
Supply
Voltage
246810
1
10
100
1,000
Supply Voltage (V)
RL tied to Vcc
Single Supply
Vid = -100mV
RL=10k ohm
RL=100 ohm
RL=1M ohm
Voltage referenced to Vcc (mV)
Figure 11. Output short-circuit current vs.
output voltage
Figure 12. Gain and phase vs. frequency
pg
Output Voltage (V)
Output Short-Circuit Current (mA)
0246810
-30.0
-20.0
-10.0
0.0
10.0
20.0
30.0
Vcc = 10V
T = -40°C
T = +85°C
Source
Sink
T = -40°C
T = +25°C
T = +25°C
T = +85°C
100 1,000 10,000 100,000
Frequency (Hz)
0
10
20
30
40
50
60
70
40
60
80
100
120
140
160
180
Gain (dB)
Phase (°)
RL = 1M ohm
CL = 50 pF
Vcc = 3V & 5V
gain
phase
TS94x, TS94xA, TS94xB Electrical characteristics
Doc ID 6972 Rev 6 9/18
Figure 13. Small signal transient response Figure 14. Gain and phase versus frequency
gp
0.0 0.5 1.0 1.5 2.0
Time (ms)
-100
0
100
200
300
Output Voltage (mV)
Vcc = +-2.5V
Gain = -1
RL = 1M ohm
CL = 50 pF
qy
100 1,000 10,000 100,000
Frequency (Hz)
0
10
20
30
40
50
60
70
40
60
80
100
120
140
160
180
Gain (dB)
Phase (°)
RL = 1M ohm
CL = 100 pF
Vcc = 3V & 5V
gain
phase
Figure 15. Slew rate positive and negative vs.
temperature
Figure 16. Large signal transient response
p
-80 -40 0 40 80 120
Temperature (°C)
3.4
3.6
3.8
4.0
4.2
4.4
4.6
4.8
Slew Rate (V/ms)
Slew rate negative
Slew rate positive
Gain = +1
RL = 1M ohm
CL = 100pf
Vcc = 5V
ageSga ase espose
0.0 1.0 2.0 3.0 4.0 5.0
Time (ms)
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
Output Voltage (V)
Vcc = +-2.5V
Gain = -1
RL = 1M ohm
CL = 50 pF
Package information TS94x, TS94xA, TS94xB
10/18 Doc ID 6972 Rev 6
3 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
TS94x, TS94xA, TS94xB Package information
Doc ID 6972 Rev 6 11/18
3.1 SOT23-5 package information
Figure 17. SOT23-5 package mechanical drawing
Table 7. SOT23-5 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 0.90 1.20 1.45 0.035 0.047 0.057
A1 0.15 0.006
A2 0.90 1.05 1.30 0.035 0.041 0.051
B 0.35 0.40 0.50 0.013 0.015 0.019
C 0.09 0.15 0.20 0.003 0.006 0.008
D 2.80 2.90 3.00 0.110 0.114 0.118
D1 1.90 0.075
e 0.95 0.037
E 2.60 2.80 3.00 0.102 0.110 0.118
F 1.50 1.60 1.75 0.059 0.063 0.069
L 0.10 0.35 0.60 0.004 0.013 0.023
K 0 degrees 10 degrees
Package information TS94x, TS94xA, TS94xB
12/18 Doc ID 6972 Rev 6
3.2 SO-8 package information
Figure 18. SO-8 package mechanical drawing
Table 8. SO-8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.750.069
A1 0.10 0.25 0.004 0.010
A2 1.25 0.049
b 0.28 0.48 0.011 0.019
c 0.17 0.23 0.007 0.010
D 4.80 4.90 5.00 0.189 0.193 0.197
E 5.80 6.00 6.20 0.228 0.236 0.244
E1 3.80 3.90 4.00 0.150 0.154 0.157
e 1.27 0.050
h 0.25 0.50 0.010 0.020
L 0.40 1.27 0.016 0.050
L1 1.04 0.040
k 0 8° 1° 8°
ccc 0.10 0.004
TS94x, TS94xA, TS94xB Package information
Doc ID 6972 Rev 6 13/18
3.3 TSSOP8 package information
Figure 19. TSSOP8 package mechanical drawing
Table 9. TSSOP8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.008
D 2.90 3.00 3.10 0.114 0.118 0.122
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.177
e 0.65 0.0256
k0° 8°0° 8°
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1 0.039
aaa 0.10 0.004
Package information TS94x, TS94xA, TS94xB
14/18 Doc ID 6972 Rev 6
3.4 SO-14 package information
Figure 20. SO-14 package mechanical drawing
Table 10. SO-14 package mechanical data
Dimensions
Ref.
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.35 1.75 0.05 0.068
A1 0.10 0.25 0.004 0.009
A2 1.10 1.65 0.04 0.06
B 0.33 0.51 0.01 0.02
C 0.19 0.25 0.007 0.009
D 8.55 8.75 0.33 0.34
E 3.80 4.0 0.15 0.15
e1.27 0.05
H 5.80 6.20 0.22 0.24
h 0.25 0.50 0.009 0.02
L 0.40 1.27 0.015 0.05
k 8° (max.)
ddd 0.10 0.004
TS94x, TS94xA, TS94xB Package information
Doc ID 6972 Rev 6 15/18
3.5 TSSOP14 package information
Figure 21. TSSOP14 package mechanical drawing
Table 11. TSSOP14 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.004 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.0089
D 4.90 5.00 5.10 0.193 0.197 0.201
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.176
e 0.65 0.0256
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00 0.039
k0° 8°0° 8°
aaa 0.10 0.004
Ordering information TS94x, TS94xA, TS94xB
16/18 Doc ID 6972 Rev 6
4 Ordering information
Table 12. Order codes
Order code Temperature
range Package Packaging Marking
TS941ID
TS941IDT
-40°C to +85°C
SO-8 Tube or
Tape & reel
TS941ID
TS941IDT
TS941AID
TS941AIDT TS941AID
TS941BID
TS941BIDT TS941BID
TS941ILT
SOT23-5L Tape & reel
K201
TS941AILT K202
TS941BILT K203
TS942ID
TS942IDT
SO-8 Tube or
Tape & reel
TS942ID
TS942IDT
TS942AID
TS942AIDT TS942AID
TS942BID
TS942BIDT TS942BID
TS942IPT
TSSOP8 Tape & reel
TS942
TS942AIPT 942AI
TS942BIPT 942BI
TS944ID
TS944IDT
SO-14 Tube or
Tape & reel
TS944ID
TS944IDT
TS944AID
TS944AIDT
TS944AID
TS944AIDT
TS944BID
TS944BIDT
TS944BID
TS944BIDT
TS944IPT
TSSOP14 Tape & reel
TS944IPT
TS944AIPT TS944AI
TS944BIPT TS944BI
TS94x, TS94xA, TS94xB Revision history
Doc ID 6972 Rev 6 17/18
5 Revision history
Table 13. Document revision history
Date Revision Changes
01-Dec-2001 1 Initial release.
01-Dec-2004 2 Modifications on AMR table (explanation of Vid and Vin limits).
13-Mar-2008 3 CDM values added for TS944 in SO and TSSOP packages.
Document reformatted.
09-Apr-2008 4 Corrected error in power consumption on cover page (1.2µA, not
1.2mA).
05-Mar-2009 5
Removed DIP package information and order codes in Chapter 3
and Chapter 4.
Updated all other package mechanical drawings and data in
Chapter 3.
06-Oct-2009 6 Added root part numbers (TS94xA, TS94xB) and
Table 1: Device summary on cover page.
TS94x, TS94xA, TS94xB
18/18 Doc ID 6972 Rev 6
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