General Description
The MAX4310–MAX4315 single-supply mux-amps com-
bine high-speed operation, low-glitch switching, and
excellent video specifications. The six products in this
family are differentiated by the number of multiplexer
inputs and the gain configuration. The MAX4310/
MAX4311/MAX4312 integrate 2-/4-/8-channel multiplex-
ers, respectively, with an adjustable gain amplifier opti-
mized for unity-gain stability. The MAX4313/MAX4314/
MAX4315 integrate 2-/4-/8-channel multiplexers, respec-
tively, with a +2V/V fixed-gain amplifier. All devices have
40ns channel switching time and low 10mVp-p switching
transients, making them ideal for video-switching applica-
tions. They operate from a single +4V to +10.5V supply,
or from dual supplies of ±2V to ±5.25V, and they feature
rail-to-rail outputs and an input common-mode voltage
range that extends to the negative supply rail.
The MAX4310/MAX4311/MAX4312 have a -3dB band-
width of 280MHz/345MHz/265MHz and up to a 460V/µs
slew rate. The MAX4313/MAX4314/MAX4315, with
150MHz/127MHz/97MHz -3dB bandwidths up to a
540V/µsslew rate, and a fixed gain of +2V/V, are ideally
suited for driving back-terminated cables. Quiescent sup-
ply current is as low as 6.1mA, while low-power shutdown
mode reduces supply current to as low as 560µAand
places the outputs in a high-impedance state. The
MAX4310–MAX4315’s internal amplifiers maintain an
open-loop output impedance of only 8Ωover the full out-
put voltage range, minimizing the gain error and band-
width changes under loads typical of most rail-to-rail
amplifiers. With differential gain and phase errors of
0.06% and 0.08°,respectively, these devices are ideal for
broadcast video applications.
________________________Applications
Features
♦Single-Supply Operation Down to +4V
♦345MHz -3dB Bandwidth (MAX4311)
150MHz -3dB Bandwidth (MAX4313)
♦540V/µs Slew Rate (MAX4313)
♦Low 6.1mA Quiescent Supply Current
♦40ns Channel Switching Time
♦Ultra-Low 10mVp-p Switching Transient
♦0.06%/0.08° Differential Gain/Phase Error
♦Rail-to-Rail Outputs: Drives 150Ωto within
730mV of the Rails
♦Input Common-Mode Range Includes
Negative Rail
♦Low-Power Shutdown Mode
♦Available in Space-Saving 8-Pin µMAX®and
16-Pin QSOP Packages
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
________________________________________________________________ Maxim Integrated Products 1
19-1379; Rev 3; 3/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT MANUAL
AVAILABLE
Ordering Information
Selector Guide
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
µMax is a registered trademark of Maxim Integrated Products, Inc.
PART NO. OF INPUT
CHANNELS
AMPLIFIER GAIN
(V/V) PIN-PACKAGE
MAX4310 2 ≥+1 8-Pin SO/µMAX
MAX4311 4 ≥+1 14-Pin Narrow SO, 16-Pin QSOP
MAX4312 8 ≥+1 16-Pin Narrow SO/QSOP
MAX4313 2 +2 8-Pin SO/µMAX
MAX4314 4 +2 14-Pin Narrow SO, 16-Pin QSOP
MAX4315 8 +2 16-Pin Narrow SO/QSOP
PART TEMP RANGE PIN-PACKAGE
MAX4310EUA
-40ºCto +85°C
8µMAX
MAX4310ESA
-40ºCto +85°C
8SO
MAX4311EEE
-40ºCto +85°C
16 QSOP
MAX4311ESD
-40ºCto +85°C
14 Narrow SO
MAX4312EEE
-40ºCto +85°C
16 QSOP
MAX4312ESE
-40ºCto +85°C
16 Narrow SO
MAX4313EUA
-40ºCto +85°C
8µMAX
MAX4313ESA
-40ºCto +85°C
8SO
MAX4314EEE
-40ºCto +85°C
16 QSOP
MAX4314ESD
-40ºCto +85°C
14 Narrow SO
MAX4315EEE
-40ºCto +85°C
16 QSOP
MAX4315ESE
-40ºCto +85°C
16 Narrow SO
Video Signal Multiplexing
Video Crosspoint Switching
Flash ADC Input Buffers
75ΩVideo Cable Drivers
High-Speed Signal Processing
Broadcast Video
Medical Imaging
Multimedia Products
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=∞, VOUT =2.5V, TA= TMIN to TMAX,unless otherwise noted. Typical values are at TA=+25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VCC to VEE).................................................12V
Input Voltage....................................(VEE -0.3V) to (VCC +0.3V)
All Other Pins ...................................(VEE -0.3V) to (VCC +0.3V)
Output Current................................................................±120mA
Short-Circuit Duration (VOUT to GND, VCC or VEE)....Continuous
Continuous Power Dissipation (TA=+70°C)
8-Pin SO (derate 5.9mW/°C above +70°C)...................471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) ..............330mW
14-Pin SO (derate 8.3mW/°C above +70°C).................667mW
16-Pin SO (derate 8.7mW/°C above +70°C).................696mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)............667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage
Range VCC Inferred from PSRR test 4.0
10.5
V
MAX4310/MAX4311/MAX4312, inferred from
CMRR test
VCC - 2.8
Input Voltage Range
MAX4313/MAX4314/MAX4315, inferred from
output voltage swing
VCC - 2.7
V
Common-Mode Rejection
Ratio CMRR 0≤VCM ≤2.2V, MAX4310/MAX4311/MAX4312
only 73 95
dB
Input Offset Voltage VOS
±5.0
±20
mV
Input Offset Voltage Drift TCVOS ±7
µV/°C
Input Offset Voltage
Matching ±1
mV
Input Bias Current IBIIN 7 14 µA
Feedback Bias Current IFB IFB,MAX4310/MAX4311/MAX4312 only 7 14 µA
Input Offset Current IOS MAX4310/MAX4311/MAX4312 only 0.1 2 µA
Common-Mode Input
Resistance RIN VIN varied over VCM,MAX4310/MAX4311/
MAX4312 only 3
MΩ
Differential Input Resistance
RIN 70
KΩ
Open loop 8
MAX4310/MAX4311/
MAX4312 only
Closed loop, AV=+1V/V
0.025
Output Resistance ROUT
MAX4313/MAX4314/MAX4315
0.025
Ω
MAX4310/MAX4311/MAX4312, open loop 35
Disabled Output Resistance
ROUT MAX4313/MAX4314/MAX4315 1 Ω
Open-Loop Gain AVOL MAX4310/MAX4311/MAX4312,
RL=150Ωto GND, 0.25V ≤VOUT ≤4.2V 50 59 dB
Voltage Gain AVCL MAX4313/MAX4314/MAX4315,
RL=150Ωto GND, 0.25V ≤VOUT ≤4.2V 1.9 2.0 2.1
V/V
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS (continued)
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=∞, VOUT =2.5V, TA= TMIN to TMAX,unless otherwise noted. Typical values are at TA=+25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VCC - VOH
0.73
0.9
RL=150ΩVOL - VEE
0.03
0.06
VCC - VOH
0.25
0.4
Output Voltage Swing VOUT
RL=10kΩVOL - VEE
0.04
0.07
V
Output Current IOUT RL=30Ω
±75
±95
mA
Power-Supply Rejection
Ratio PSRR VCC = 4.0V to 10.5V 52 63 dB
MAX4310/MAX4313 6.1 7.8
MAX4311/MAX4314 6.9 8.8Quiescent Supply Current ICC
MAX4312/MAX4315 7.4 9.4
mA
Shutdown Supply Current SHDN ≤VIL 560
750
µA
LOGIC CHARACTERISTICS (SHDN,A0, A1, A2)
Logic-Low Threshold VIL
VEE + 1
V
Logic-High Threshold VIH
VCC - 1
V
Logic-Low Input Current IIL VIL ≤VEE + 1V
-500
-320
µA
Logic-High Input Current IIH VIH ≥VCC - 1V 0.3 5 µA
AC ELECTRICAL CHARACTERISTICS
(VCC =+5V, VEE = 0V, SHDN ≥4V, RL=150Ω, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4310 280
MAX4311 345
MAX4312 265
MAX4313 150
MAX4314 127
-3dB Bandwidth
BW(-3dB)
VOUT = 100mVp-p
MAX4315 97
MHz
MAX4310 60
MAX4311 40
MAX4312 35
MAX4313 40
MAX4314 78
-0.1dB Bandwidth
BW(-0.1dB)
VOUT = 100mVp-p
MAX4315 46
MHz
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(VCC =+5V, VEE = 0V, SHDN ≥4V, RL=150Ω, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4310 110
MAX4311 100
MAX4312 80
MAX4313 40
MAX4314 90
Full-Power Bandwidth FPBW VOUT = 2Vp-p
MAX4315 70
MHz
MAX4310 460
MAX4311 430
MAX4312 345
MAX4313 540
MAX4314 430
Slew Rate SR VOUT = 2Vp-p
MAX4315 310
MAX 4310/M AX 4311/M AX 4312
42
Settling Time to 0.1% tSVOUT = 2Vp-p
MAX4313/M AX4314/M AX4315
25 ns
Gain Matching Matching between channels over -3dB
bandwidth
0.05
dB
AVCL = +1V/V,
RL=150Ωto
VCC/2
MAX4310/MAX4311/
MAX4312
0.06
Differential Gain Error DG
RL=150Ωto
VCC/2
MAX4313/MAX4314/
MAX4315
0.09
%
AVCL = +1V/V,
RL=150Ωto
VCC/2
MAX4310/MAX4311/
MAX4312
0.08
Differential Phase Error DG
RL=150Ωto
VCC/2
MAX4313/MAX4314/
MAX4315 0.03
degrees
f=3kHz -89
f=2kHz -80
MAX4310/
MAX4311/
MAX4312 f=20kHz -47
f=3kHz -95
f=2kHz -72
Spurious-Free Dynamic
Range SFDR VOUT = 2Vp-p
MAX4313/
MAX4314/
MAX4315 f=20kHz -47
dBc
MAX4310/M AX4311/M AX4312
-85
Second Harmonic Distortion
f=1MHz,
VOUT = 2Vp-p
MAX4313/M AX4314/M AX4315
-76
dBc
MAX4310/M AX4311/M AX4312
-88
Third Harmonic Distortion f=1MHz,
VOUT = 2Vp-p
MAX4313/M AX4314/M AX4315
-95
dBc
MAX4310/M AX4311/M AX4312
-83
Total Harmonic Distortion THD f=1MHz,
VOUT = 2Vp-p
MAX4313/M AX4314/M AX4315
-76
dBc
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
_______________________________________________________________________________________ 5
AC ELECTRICAL CHARACTERISTICS (continued)
(VCC =+5V, VEE = 0V, SHDN ≥4V, RL=150Ω, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4310/MAX4313 -95
MAX4311/MAX4314 -60
All-Hostile Crosstalk f=10MHz,
VIN = 2Vp-p MAX4312MAX4315 -52
dB
Off-Isolation SHDN =0, f = 10MHz, VIN =2Vp-p -82 dB
Output Impedance ZOUT f=10MHz 3 Ω
Input Capacitance CIN Channel on or off 2 pF
Input Voltage-Noise Density
enf=10kHz 14
nV/√Hz
Input Current-Noise Density
inf=10kHz 1.3
pA/√Hz
SWITCHING CHARACTERISTICS
Channel Switching Time tSW 40 ns
Enable Time from Shutdown
tON 50 ns
Disable Time to Shutdown tOFF 120 ns
Switching Transient 10
mVp-p
Typical Operating Characteristics
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=150Ωto VCC/2, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL =+2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
4
-6
100k 10M 100M1M1G
MAX4310
SMALL-SIGNAL GAIN vs. FREQUENCY
-4
MAX4310-01
FREQUENCY (Hz)
GAIN (dB)
-2
0
2
3
1
-1
-3
-5
VOUT = 100mVp-p
0.5
-0.5
100k 10M 100M1M1G
MAX4310
GAIN FLATNESS vs. FREQUENCY
-0.3
MAX4310/15 toc02
FREQUENCY (Hz)
GAIN FLATNESS (dB)
-0.1
0.1
0.3
0.4
0.2
0
-0.2
-0.4
VOUT = 100mVp-p
4
-6
100k 10M 100M1M1G
MAX4310
LARGE-SIGNAL GAIN vs. FREQUENCY
-4
MAX4310/15-03
FREQUENCY (Hz)
GAIN (dB)
-2
0
2
3
1
-1
-3
-5
VOUT = 2Vp-p
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
6 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=150Ωto VCC/2, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL =+2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
-0.8
1 100010010
MAX4311
GAIN FLATNESS vs. FREQUENCY
-0.4
-0.6
-0.7
0
-0.2
0.2
-0.3
-0.5
0.1
-0.1
MAX4310/15 toc05
FREQUENCY (MHz)
GAIN FLATNESS (dB)
VOUT = 100mVp-p
-8
1 100010010
MAX4311
SMALL-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4311 toc04
FREQUENCY (MHz)
GAIN (dB)
VOUT = 100mVp-p
-0.8
1 100010010
MAX4312
GAIN FLATNESS vs. FREQUENCY
-0.4
-0.6
-0.7
0
-0.2
0.2
-0.3
-0.5
0.1
-0.1
MAX4310/15 toc08
FREQUENCY (MHz)
GAIN FLATNESS (dB)
VOUT = 100mVp-p
-8
1 100010010
MAX4312
SMALL-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4310/15 toc07
FREQUENCY (MHz)
GAIN (dB)
VOUT = 100mVp-p
-8
1 100010010
MAX4311
LARGE-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4311 toc06
FREQUENCY (MHz)
GAIN (dB)
VOUT = 2Vp-p
-8
1 100010010
MAX4312
LARGE-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4310/15 toc09
FREQUENCY (MHz)
GAIN (dB)
VOUT = 2Vp-p
4
-6
100k 10M 100M1M1G
MAX4313
SMALL-SIGNAL GAIN vs. FREQUENCY
-4
MAX4310/15-toc10
FREQUENCY (Hz)
GAIN (dB)
-2
0
2
3
1
-1
-3
-5
VOUT = 100mVp-p
0.5
-0.5
100k 10M 100M1M1G
MAX4313
GAIN FLATNESS vs. FREQUENCY
-0.3
MAX4310/15-toc11
FREQUENCY (Hz)
GAIN FLATNESS (dB)
-0.1
0.1
0.3
0.4
0.2
0
-0.2
-0.4
VOUT = 100mVp-p
4
-6
100k 10M 100M1M1G
MAX4313
LARGE-SIGNAL GAIN vs. FREQUENCY
-4
MAX4310/15-toc12
FREQUENCY (Hz)
GAIN (dB)
-2
0
2
3
1
-1
-3
-5
VOUT = 2Vp-p
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
_______________________________________________________________________________________ 7
Typical Operating Characteristics (continued)
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=150Ωto VCC/2, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL =+2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
-30
-100
100k 100M10M1M
MAX4310/MAX4311/MAX4312
HARMONIC DISTORTION vs. FREQUENCY
-70
-90
-40
-60
-20
-80
-50
MAX4310/15 toc19
FREQUENCY (Hz)
HARMONIC DISTORTION (dBc)
VOUT = 2Vp-p
2ND HARMONIC
3RD HARMONIC
-30
-100
100k 100M10M1M
MAX4313/MAX4314/MAX4315
HARMONIC DISTORTION vs. FREQUENCY
-70
-90
-40
-60
-20
-80
-50
MAX4310/15-20
FREQUENCY (Hz)
HARMONIC DISTORTION (dBc)
VOUT = 2Vp-p
2ND HARMONIC
3RD HARMONIC
0
-100
100k 10M 100M1M1G
POWER-SUPPLY REJECTION
vs. FREQUENCY
-80
MAX4310/15-21
FREQUENCY (Hz)
POWER-SUPPLY REJECTION (dB)
-60
-40
-20
-10
-30
-50
-70
-90
-8
1 100010010
MAX4314
SMALL-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4310/15 toc13
FREQUENCY (MHz)
GAIN (dB)
VOUT = 100mVp-p
-0.8
1100010010
MAX4314
GAIN FLATNESS vs. FREQUENCY
-0.4
-0.6
-0.7
0
-0.2
0.2
-0.3
-0.5
0.1
-0.1
MAX4310/15 toc14
FREQUENCY (MHz)
GAIN FLATNESS (dB)
VOUT = 100mVp-p
-8
1 100010010
MAX4314
LARGE-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4310/15 toc15
FREQUENCY (MHz)
GAIN (dB)
VOUT = 2Vp-p
-8
1 100010010
MAX4315
SMALL-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4310/15 toc16
FREQUENCY (MHz)
GAIN (dB)
VOUT = 100mVp-p
-0.8
1 100010010
MAX4315
GAIN FLATNESS vs. FREQUENCY
-0.4
-0.6
-0.7
0
-0.2
0.2
-0.3
-0.5
0.1
-0.1
MAX4310/15 toc17
FREQUENCY (MHz)
GAIN FLATNESS (dB)
VOUT = 100mVp-p
-8
1 100010010
MAX4315
LARGE-SIGNAL GAIN vs. FREQUENCY
-4
-6
-7
0
-2
2
-3
-5
1
-1
MAX4310/15 toc18
FREQUENCY (MHz)
GAIN (dB)
VOUT = 2Vp-p
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
8 _______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=150Ωto VCC/2, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL =+2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
0
-100
10k 100k 10M 100M1M1G
MAX4310/MAX4311/MAX4312
COMMON-MODE REJECTION vs. FREQUENCY
-80
MAX4310/15-toc22
FREQUENCY (Hz)
COMMON-MODE REJECTION (dB)
-60
-40
-20
-10
-30
-50
-70
-90
0
100k 10M 100M1M1G
OFF-ISOLATION vs. FREQUENCY
-100
-120
MAX4310/15-toc23
FREQUENCY (Hz)
ISOLATION (dB)
-20
-40
-60
-80
50
-150
0.1 10 1001 1000
MAX4310/MAX4313
All-HOSTILE CROSSTALK vs. FREQUENCY
-110
MAX4310/15-toc24
FREQUENCY (MHz)
CROSSTALK (dB)
-70
-30
10
30
-10
-50
-90
-130
0.1 101 100 1000
MAX4312/MAX4315
ALL-HOSTILE CROSSTALK vs. FREQUENCY
MAX4310/15 toc25
FREQUENCY (MHz)
CROSSTALK (dB)
50
30
10
-10
-150
-110
-130
-30
-50
-70
-90
100
10
10 10k 100k 1M100 1k 10M
VOLTAGE-NOISE DENSITY vs.
FREQUENCY (INPUT REFERRED)
MAX4310/15 toc28a
FREQUENCY (Hz)
VOLTAGE-NOISE DENSITY (nV/√Hz)
0.1 101 100 1000
MAX4311/MAX4314
ALL-HOSTILE CROSSTALK vs. FREQUENCY
MAX4310/15 toc26
FREQUENCY (MHz)
CROSSTALK (dB)
50
30
10
-10
-150
-110
-130
-30
-50
-70
-90
100
0.01
100k 10M 100M1M1G
OUTPUT IMPEDANCE vs. FREQUENCY
0.1
MAX4310/15-toc27
FREQUENCY (Hz)
OUTPUT IMPEDANCE (Ω)
10
1
100
1
10 10k 100k 1M100 1k 10M
CURRENT-NOISE DENSITY vs.
FREQUENCY (INPUT REFERRED)
10
MAX4310/15 toc29
FREQUENCY (Hz)
CURRENT-NOISE DENSITY (pA/√Hz)
IN
(1V/div)
OUT
(1V/div)
MAX4310
LARGE-SIGNAL PULSE RESPONSE
MAX4310/15 toc30
10ns/div
MAX4312
MAX4315
MAX4311
MAX4314
MAX4310
MAX4313
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
_______________________________________________________________________________________ 9
Typical Operating Characteristics (continued)
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=150Ωto VCC/2, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL =+2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
IN
(1V/div)
OUT
(1V/div)
MAX4311
LARGE-SIGNAL PULSE RESPONSE
MAX4310/15-toc33
10ns/div
MAX4312
LARGE-SIGNAL PULSE RESPONSE
MAX43110/15 toc32
10ns/div
IN
(1V/div)
OUT
(1V/div)
IN
(500mV/div)
OUT
(1V/div)
MAX4313
LARGE-SIGNAL PULSE RESPONSE
MAX4310/15-toc33
10ns/div
IN
(500mV/div)
VOUT
(1V/div)
MAX4314
LARGE-SIGNAL PULSE RESPONSE
MAX4310/15-toc33
10ns/div
MAX4311
SMALL-SIGNAL PULSE RESPONSE
MAX4310/15 toc37a
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
MAX4315
LARGE-SIGNAL PULSE RESPONSE
MAX4310/15 toc35
10ns/div
IN
(500mV/div)
OUT
(IV/div)
IN
(50mV/div)
OUT
(50mV/div)
MAX4310
SMALL-SIGNAL PULSE RESPONSE
MAX4310/15 toc36
10ns/div
MAX4312
SMALL-SIGNAL PULSE RESPONSE
MAX4310/15 toc38
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
IN
(50mV/div)
OUT
(50mV/div)
MAX4313
SMALL-SIGNAL PULSE RESPONSE
MAX4310/15-toc39
10ns/div
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
10 ______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VCC =+5V, VEE =0V, SHDN ≥4V, RL=150Ωto VCC/2, VCM =1.5V, AVCL =+1V/V (MAX4310/MAX4311/MAX4312), AVCL =+2V/V
(MAX4313/MAX4314/MAX4315), TA=+25°C, unless otherwise noted.)
MAX4314
SMALL-SIGNAL PULSE RESPONSE
MAX4311 toc
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
MAX4315
SMALL-SIGNAL PULSE RESPONSE
MAX4311 toc
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
IN
(50mV/div)
OUT
(50mV/div)
MAX4310
SMALL-SIGNAL PULSE RESPONSE
(CL= 10pF)
MAX4310/15-toc42
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
MAX4313
SMALL-SIGNAL PULSE RESPONSE
(CL= 22pF)
MAX431015-toc45
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
MAX4310
SMALL-SIGNAL PULSE RESPONSE
(CL= 22pF)
MAX4310-TOC22
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
MAX4313
SMALL-SIGNAL PULSE RESPONSE
(CL= 10pF)
MAX4310/15-toc44
10ns/div
A0
(2.5V/div)
OUT
(10mV/div)
CHANNEL-SWITCHING TRANSIENT
MAX4310/15toc46
20ns/div
SHDN
(2.0V/div)
OUT
(1V/div)
SHUTDOWN RESPONSE TIME
MAX4310-TOC27
100ns/div
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
______________________________________________________________________________________ 11
Pin Description
PIN
MAX4311
MAX4314
MAX4310
SO/µMAX
SO
QSOP
MAX4312
SO/QSOP
MAX4313
SO/µMAX
SO
QSOP
MAX4315
SO/QSOP
NAME
FUNCTION
1
2
23 1 2 2 3 A0 Channel Address Logic Input 0
—
1
1 2 — 1 1 2 A1 Channel Address Logic Input 1
—
—
—1 —
—
— 1 A2 Channel Address Logic Input 2
2
12
14 14 2
12
14 14
SHDN
Shutdown Input
3
4
44 344 4V
CC Positive Power Supply
4
5
5 5 4 5 5 5 IN0 Amplifier Input 0
5
7
7 6 5 7 7 6 IN1 Amplifier Input 1
—
8
10 7 — 8 10 7 IN2 Amplifier Input 2
—
10
12 8 —
10
12 8 IN3 Amplifier Input 3
—
—
—9 —
—
— 9 IN4 Amplifier Input 4
—
—
—10 —
—
— 10 IN5 Amplifier Input 5
—
—
—11 —
—
— 11 IN6 Amplifier Input 6
—
—
—12 —
—
— 12 IN7 Amplifier Input 7
6
11
13 13 6
11
13 13 VEE Negative Power Supply. Ground
for single-supply operation.
7
13
15 15 —
—
— — FB Amplifier Feedback Input
—
—
—— 7
13
15 15 GND Ground
8
14
16 16 8
14
16 16 OUT Amplifier Output
—
3, 6,
9
3, 6, 8,
9, 11
——
3, 6,
9
3, 6, 8,
9, 11
— N.C. Not connected. Tie to ground
plane for optimal performance.
Detailed Description
The MAX4310/MAX4311/MAX4312 combine 2-channel,
4-channel, or 8-channel multiplexers, respectively, with
an adjustable-gain output amplifier optimized for
closed-loop gains of +1V/V (0dB) or greater. The
MAX4313/MAX4314/MAX4315 combine 2-channel, 4-
channel, or 8-channel multiplexers, respectively, with a
+2V/V (6dB) fixed-gain amplifier, optimized for driving
back-terminated cables. These devices operate from a
single supply voltage of +4V to +10.5V, or from dual
supplies of ±2V to ±5.25V. The outputs may be placed
in a high-impedance state and the supply current mini-
mized by forcing the SHDN pin low. The input multi-
plexers feature short 40ns channel-switching times and
small 10mVp-p switching transients. The input capaci-
tance remains constant at 1pF whether the channel is
on or off, providing a predictable input impedance to
the signal source. These devices feature single-supply,
rail-to-rail, voltage-feedback output amplifiers that
achieve up to 540V/µs slew rates and up to 345MHz
-3dB bandwidths. These devices also feature excellent
harmonic distortion and differential gain/phase perfor-
mance.
Applications Information
Rail-to-Rail Outputs, Ground-Sensing Input
The input common-mode range extends from the nega-
tive supply rail to VCC -2.7V with excellent common-
mode rejection. Beyond this range, multiplexer
switching times may increase and the amplifier output
is a nonlinear function of the input, but does not under-
go phase reversal or latchup.
The output swings to within 250mV of VCC and 40mV of
VEE with a 10kΩload. With a 150Ωload to ground, the
output swings from 30mV above VEE to within 730mV of
the supply rail. Local feedback around the output stage
ensures low open-loop output impedance to reduce
gain sensitivity to load variations. This feedback also
produces demand-driven bias current to the output
transistors for ±95mA drive capability while constrain-
ing total supply current to only 6.1mA.
Feedback and Gain Resistor Selection
(MAX4310/MAX4311/MAX4312)
Select the MAX4310/MAX4311/MAX4312 gain-setting
feedback (RF)and input (RG)resistors to fit your applica-
tion. Large resistor values increase voltage noise and
interact with the amplifier’s input and PC board capaci-
tance. This can generate undesirable poles and zeros,
and can decrease bandwidth or cause oscillations. For
example, a noninverting gain of +2V/V configuration (RF=
RG)using 1kΩresistors, combined with 2pF of input
capacitance and 1pF of PC board capacitance, causes a
pole at 159MHz. Since this pole is within the amplifier
bandwidth, it jeopardizes stability. Reducing the 1kΩ
resistors to 100Ωextends the pole frequency to 1.59GHz,
but could limit output swing by adding 200Ωin parallel
with the amplifier’s load resistor.
Table 1 shows suggested RF and RG values for the
MAX4310/MAX4311/MAX4312 when operating in the non-
inverting configuration (shown in Figure 1). These values
provide optimal AC response using surface-mount resis-
tors and good layout techniques, as discussed in the
Layout and Power-Supply Bypassing section.
Stray capacitance at the FB pin causes feedback resis-
tor decoupling and produces peaking in the frequency-
response curve. Keep the capacitance at FB as low as
possible by using surface-mount resistors and by
avoiding the use of a ground plane beneath or beside
these resistors and the FB pin. Some capacitance is
unavoidable; if necessary, its effects can be neutralized
by adjusting RF. Use 1% resistors to maintain consis-
tency over a wide range of production lots.
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
12 ______________________________________________________________________________________
MAX4310
RT
75Ω
8OUT
7FB
IN0
IN1
4
5
1
A0
RT
75Ω
RG
RF
75ΩCABLE
RT
75Ω
RT
75Ω
75ΩCABLE
75ΩCABLE
GAIN
(V/V)
GAIN
(d B)
RF
(Ω)
RG
(Ω)
-3dB BW
(MHz)
0.1dB BW
(MHz)
100∝280 60
2 6 500
500
80 30
5 14 500
120
20 4
10 20 500 56 10 2
Figure 1. MAX4310 Noninverting Gain Configuration
Table 1. Bandwidth and Gain with
Suggested Gain-Setting resistors
(MAX4310/MAX4311/MAX4312)
Low-Power Shutdown Mode
All parts feature a low-power shutdown mode that is
activated by driving the SHDN input low. Placing the
amplifier in shutdown mode reduces the quiescent sup-
ply current to 560µA and places the output into a high-
impedance state, typically 35kΩ.By tying the outputs of
several devices together and disabling all but one of
the paralleled amplifiers’ outputs, multiple devices may
be paralleled to construct larger switch matrices.
For MAX4310/MAX4311/MAX4312 application circuits
operating with a closed-loop gain of +2V/V or greater,
consider the external-feedback network impedance of
all devices used in the mux application when calculat-
ing the total load on the output amplifier of the active
device. The MAX4313/MAX4314/MAX4315 have a fixed
gain of +2V/V that is internally set with two 500Ωthin-
film resistors. The impedance of the internal feedback
resistors must be taken into account when operating
multiple MAX4313/MAX4314/MAX4315s in large multi-
plexer applications. For normal operation, drive SHDN
high. If the shutdown function is not used, connect
SHDN to VCC.
Layout and Power-Supply Bypassing
The MAX4310–MAX4315 have very high bandwidths and
consequently require careful board layout, including the
possible use of constant-impedance microstrip or
stripline techniques.
To realize the full AC performance of these high-speed
amplifiers, pay careful attention to power-supply bypass-
ing and board layout. The PC board should have at least
two layers: a signal and power layer on one side, and a
large, low-impedance ground plane on the other side.
The ground plane should be as free of voids as possible,
with one exception: the feedback (FB) should have as low
acapacitance to ground as possible. Therefore, layers
that do not incorporate a signal or power trace should not
have a ground plane.
Whether or not a constant-impedance board is used, it is
best to observe the following guidelines when designing
the board:
1) Do not use wire-wrapped boards (they are too
inductive) or breadboards (they are too capacitive).
2) Do not use IC sockets; they increase parasitic
capacitance and inductance.
3) Keep signal lines as short and straight as possible.
Do not make 90° turns; round all corners.
4) Observe high-frequency bypassing techniques to
maintain the amplifier’s accuracy and stability.
5) Use surface-mount components. They generally
have shorter bodies and lower parasitic reactance,
yielding better high-frequency performance than
through-hole components.
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
______________________________________________________________________________________ 13
20
-160
0 50 100 150 300 350 500
-100
-120
0
LOGIC-LOW THRESHOLD (mV ABOVE VEE)
INPUT CURRENT (µA)
200 250 400 450
-60
-140
-20
-40
-80
Figure 2. Logic-Low Input Current vs. VIL (
SHDN
,A0, A1, A2)
OUT
IN- SHDN, A0, A1, A2
IN+
10kΩ
LOGIC INPUT
MAX431_
Figure 3. Circuit to Reduce Logic-Low Input Current
0
-10
050 100 150 300 350 500
-7
-8
-1
LOGIC-LOW THRESHOLD (mV ABOVE VEE)
INPUT CURRENT ( µA)
200 250 400 450
-3
-5
-9
-2
-4
-6
Figure 4. Logic-Low Input Current vs. VIL with 10kΩSeries
Resistor
MAX4310–MAX4315
The bypass capacitors should include a 100nF, ceram-
ic surface-mount capacitor between each supply pin
and the ground plane, located as close to the package
as possible. Optionally, place a 10µF tantalum capaci-
tor at the power-supply pin’s point of entry to the PC
board to ensure the integrity of incoming supplies. The
power-supply trace should lead directly from the tanta-
lum capacitor to the VCC and VEE pins. To minimize
parasitic inductance, keep PC traces short and use sur-
face-mount components. If input termination resistors
and output back-termination resistors are used, they
should be surface-mount types, and should be placed
as close to the IC pins as possible.
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
14 ______________________________________________________________________________________
MAX4313
RT
75Ω
8OUT
IN0
IN1
4
5
17
GND
A0
RT
75Ω
500Ω
500Ω
75ΩCABLE OUT
RT
75Ω
RT
75Ω
75ΩCABLE
75ΩCABLE
Figure 5. Video Line Driver
10
15
20
25
30
0 50 100 150 200 250
MAX4310-FIG08
CAPACITIVE LOAD (pF)
ISOLATION RESISTANCE RISO (Ω)
Figure 8. Optimal Isolation Resistance vs. Capacitive Load
100M 1G
-6
4
3
2
0
-1
-2
-3
-4
-5
1
100k 1M 10M
MAX4310-FIG06
FREQUENCY (Hz)
GAIN (dB)
VOUT = 100mVp-p
10pF LOAD
5pF LOAD
15pF LOAD
Figure 6. Small-Signal Gain vs. Frequency with a Capacitive
Load and No-Isolation Resistor
MAX4313
RISO
8OUT
IN0
IN1
4
5
17
GND
A0
RL
CL
500Ω
500Ω
RT
75Ω
RT
75Ω
75ΩCABLE
75ΩCABLE
Figure 7. Using an Isolation Resistor (RISO)for High-Capacitive
Loads
100M 1G
-6
4
3
2
0
-1
-2
-3
-4
-5
1
100k 1M 10M
MAX4310-FIG09
FREQUENCY (Hz)
GAIN (dB)
VOUT = 100mVp-p
47pF LOAD
90pF LOAD
120pF LOAD
Figure 9. Small-Signal Gain vs. Frequency with a Capacitive
Load and 27ΩNo-Isolation Resistor
Video Line Driver
The MAX4310–MAX4315 are well-suited to drive coaxial
transmission lines when the cable is terminated at both
ends, as shown in Figure 5. Cable frequency response
can cause variations in the signal’s flatness.
Driving Capacitive Loads
Acorrectly terminated transmission line is purely resis-
tive and presents no capacitive load to the amplifier.
Reactive loads decrease phase margin and may pro-
duce excessive ringing and oscillation (see Typical
Operating Characteristics).
Another concern when driving capacitive loads origi-
nates from the amplifier’s output impedance, which
appears inductive at high frequencies. This inductance
forms an L-C resonant circuit with the capacitive load,
which causes peaking in the frequency response and
degrades the amplifier’s phase margin.
Although the MAX4310–MAX4315 are optimized for AC
performance and are not designed to drive highly capaci-
tive loads, they are capable of driving up to 20pF without
oscillations. However, some peaking may occur in the fre-
quency domain (Figure 6). To drive larger capacitive
loads or to reduce ringing, add an isolation resistor
between the amplifier’s output and the load (Figure 7).
The value of RISO depends on the circuit’s gain and
the capacitive load (Figure 8). Figure 9 shows the
MAX4310–MAX4315 frequency response with the isola-
tion resistor and a capacitive load. With higher capaci-
tive values, bandwidth is dominated by the RC network
formed by RISO and CL;the bandwidth of the amplifier
itself is much higher. Also note that the isolation resistor
forms a divider that decreases the voltage delivered to
the load.
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
______________________________________________________________________________________ 15
MAX4310/MAX4313
SS
S
SHH
H
HDD
D
DNN
N
N
A2
A1
A0
CHANNEL SELECTED
0
—
—
XNone, High-Z Output
1
—
—
00
1
—
—
11
MAX4311/MAX4314
SS
SSHH
HHDD
DDNN
NN
A2
A1
A0
CHANNEL SELECTED
0
—
X X None, High-Z Output
1
—
00 0
1
—
01 1
1
—
10 2
1
—
11 3
MAX4312/MAX4315
SS
SSHH
HHDD
DDNN
NN
A2
A1
A0
CHANNEL SELECTED
0 X X X None, High-Z Output
1000 0
1001 1
1010 2
1011 3
1100 4
1101 5
1110 6
1111 7
Figure 10. High-Speed EV Board Layout—Component Side
Table 2. Input Control Logic
Figure 11. High-Speed EV Board Layout—Solder Side
MAX4310–MAX4315
Digital Interface
The multiplexer architecture of the MAX4310–MAX4315
ensures that no two input channels are ever connected
together. Channel selection is accomplished by apply-
ing a binary code to channel address inputs. The
address decoder selects input channels, as shown in
Table 2. All digital inputs are CMOS compatible.
High-Speed Evaluation Board
Figures 10 and 11 show the evaluation board and pre-
sent a suggested layout for the circuits. This board was
developed using the techniques described in the
Layout and Power-Supply Bypassing section. The
smallest available surface-mount resistors were used
for feedback and back-termination to minimize their dis-
tance from the part, reducing the capacitance associat-
ed with longer lead lengths.
SMA connectors were used for best high-frequency
performance. Inputs and outputs do not match a 75Ω
line, but this does not affect performance since dis-
tances are extremely short. However, in applications
that require lead lengths greater than one-quarter of the
wavelength of the highest frequency of interest, use
constant-impedance traces. Fully assembled evaluation
boards are available for the MAX4313 in an SO pack-
age.
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
16 ______________________________________________________________________________________
MAX4313
0.1µF
75Ω
8OUT
3
VCC
+4V TO +10.5V
IN1
IN0
5
4
1627
A0 75Ω
500Ω
GND
VEE SHDN
500Ω
VIDEO
OUTPUT
75ΩCABLE
Typical Operating Circuit
Chip Information
TRANSISTOR COUNT: 156
Package Information
For the latest package outline information, go to
www.maxim-ic.com/packages.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
8SO S8-4 21-0041
8µMAX U8-1 21-0036
14 Narrow SO S14-1 21-0041
16 Narrow SO S16-1 21-0041
16 QSOP E16-1 21-0055
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
______________________________________________________________________________________ 17
TOP VIEW
N.C. = NOT INTERNALLY CONNECTED. TIE TO GROUND PLANE FOR OPTIMAL PERFORMANCE.
A1
A0
N.C.
N.C.
VCC
IN0
IN1
N.C.
500Ω
MAX4314
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
MUX
QSOP
OUT
GND
SHDN
VEE
IN3
N.C.
IN2
N.C.
500Ω
OUT
GND
SHDN
VEE
VCC
N.C.
A0
A1
MAX4314
IN3
N.C.
IN2IN1
N.C.
IN0
SO
500Ω
14
13
12
11
10
9
8
1
2
3
4
5
6
7
MUX
500Ω
MAX4313
VEE
IN1
IN0
OUT
GND
SHDN
VCC
A0
SO/µMAX
500Ω
8
7
6
5
1
2
3
4
MUX
500Ω
MAX4315
SO/QSOP
500Ω
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A2
MUX
A1
A0
IN1
VCC
IN0
IN2
IN3
OUT
GND
SHDN
VEE
IN7
IN6
IN5
IN4
500Ω
MAX4312
SO/QSOP
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A2
MUX
A1
A0
IN1
VCC
IN0
IN2
IN3
OUT
FB
SHDN
VEE
IN7
IN6
IN5
IN4
MAX4311
QSOP
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A1
MUX
A0
N.C.
N.C.
VCC
IN0
IN1
N.C.
OUT
FB
SHDN
VEE
IN3
N.C.
IN2
N.C.
MAX4311
SO
14
13
12
11
10
9
8
1
2
3
4
5
6
7
A1
MUX
A0
N.C.
N.C.
VCC
IN0
IN1
OUT
FB
SHDN
VEE
IN3
N.C.
IN2
MAX4310
VEE
IN1IN0
1
2
8
7
OUT
FBSHDN
VCC
A0
SO/µMAX
3
4
6
5
-+
MUX
Pin Configurations
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Revision History
REVISION
NUMBER
REVISION
DATE DESCRIPTION PAGES
CHANGED
0 7/98 Initial release —
1 4/99 Added new parts to data sheet. 1–20
2 12/02 Corrected MAX4314 Pin Configuration. 17
33/08 Updated Typical Operating Characteristics.8