MAXIM MAX4310ESA

19-1379; Rev 3; 3/08
NUAL
KIT MA
ATION
U
L
A
E
V
L
E
B
AVAILA
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
________________________Applications
Video Signal Multiplexing
Video Crosspoint Switching
Flash ADC Input Buffers
75Ω Video Cable Drivers
High-Speed Signal Processing
Broadcast Video
Medical Imaging
Multimedia Products
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 150Ω to 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
Ordering Information
TEMP RANGE
PIN-PACKAGE
MAX4310EUA
PART
-40ºC to +85°C
8 µMAX
MAX4310ESA
-40ºC to +85°C
8 SO
MAX4311EEE
-40ºC to +85°C
16 QSOP
MAX4311ESD
-40ºC to +85°C
14 Narrow SO
MAX4312EEE
-40ºC to +85°C
16 QSOP
MAX4312ESE
-40ºC to +85°C
16 Narrow SO
MAX4313EUA
-40ºC to +85°C
8 µMAX
MAX4313ESA
-40ºC to +85°C
8 SO
MAX4314EEE
-40ºC to +85°C
16 QSOP
MAX4314ESD
-40ºC to +85°C
14 Narrow SO
MAX4315EEE
-40ºC to +85°C
16 QSOP
MAX4315ESE
-40ºC to +85°C
16 Narrow SO
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
µMax is a registered trademark of Maxim Integrated Products, Inc.
Selector Guide
PART
NO. OF INPUT
CHANNELS
AMPLIFIER GAIN
(V/V)
MAX4310
2
≥+1
8-Pin SO/µMAX
MAX4311
4
≥+1
14-Pin Narrow SO, 16-Pin QSOP
MAX4312
8
≥+1
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
PIN-PACKAGE
16-Pin Narrow SO/QSOP
________________________________________________________________ Maxim Integrated Products
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.
1
MAX4310–MAX4315
General Description
The MAX4310–MAX4315 single-supply mux-amps combine 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 multiplexers, respectively, with an adjustable gain amplifier optimized for unity-gain stability. The MAX4313/MAX4314/
MAX4315 integrate 2-/4-/8-channel multiplexers, respectively, 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 applications. 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 bandwidth 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/µs slew rate, and a fixed gain of +2V/V, are ideally
suited for driving back-terminated cables. Quiescent supply current is as low as 6.1mA, while low-power shutdown
mode reduces supply current to as low as 560µA and
places the outputs in a high-impedance state. The
MAX4310–MAX4315’s internal amplifiers maintain an
open-loop output impedance of only 8Ω over the full output voltage range, minimizing the gain error and bandwidth 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.
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
ABSOLUTE MAXIMUM RATINGS
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
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
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.
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.)
PARAMETER
Operating Supply Voltage
Range
SYMBOL
VCC
CONDITIONS
MAX
UNITS
4.0
10.5
V
MAX4310/MAX4311/MAX4312, inferred from
CMRR test
0.035
VCC - 2.8
MAX4313/MAX4314/MAX4315, inferred from
output voltage swing
0.035
VCC - 2.7
Inferred from PSRR test
MIN
TYP
Input Voltage Range
Common-Mode Rejection
Ratio
Input Offset Voltage
Input Offset Voltage Drift
V
CMRR
0 ≤ VCM ≤ 2.2V, MAX4310/MAX4311/MAX4312
only
73
VOS
±5.0
TCVOS
±7
µV/°C
±1
mV
Input Offset Voltage
Matching
±20
mV
Input Bias Current
IB
IIN
7
14
µA
Feedback Bias Current
IFB
IFB, MAX4310/MAX4311/MAX4312 only
7
14
µA
Input Offset Current
0.1
2
µA
IOS
MAX4310/MAX4311/MAX4312 only
Common-Mode Input
Resistance
RIN
VIN varied over VCM, MAX4310/MAX4311/
MAX4312 only
Differential Input Resistance
RIN
Output Resistance
ROUT
MAX4310/MAX4311/
MAX4312 only
Open loop
Disabled Output Resistance
ROUT
3
MΩ
70
KΩ
8
Closed loop, AV = +1V/V
0.025
MAX4313/MAX4314/MAX4315
2
dB
95
Ω
0.025
MAX4310/MAX4311/MAX4312, open loop
35
MAX4313/MAX4314/MAX4315
1
Ω
Open-Loop Gain
AVOL
MAX4310/MAX4311/MAX4312,
RL = 150Ω to GND, 0.25V ≤ VOUT ≤ 4.2V
50
59
Voltage Gain
AVCL
MAX4313/MAX4314/MAX4315,
RL = 150Ω to GND, 0.25V ≤ VOUT ≤ 4.2V
1.9
2.0
_______________________________________________________________________________________
dB
2.1
V/V
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
(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
RL = 150Ω
Output Voltage Swing
VOUT
RL = 10kΩ
IOUT
RL = 30Ω
Power-Supply Rejection
Ratio
PSRR
VCC = 4.0V to 10.5V
ICC
Shutdown Supply Current
MIN
MAX
0.73
0.9
VOL - VEE
0.03
0.06
VCC - VOH
0.25
0.4
0.04
0.07
UNITS
V
VOL - VEE
Output Current
Quiescent Supply Current
TYP
VCC - VOH
±75
±95
mA
52
63
dB
MAX4310/MAX4313
6.1
7.8
MAX4311/MAX4314
6.9
8.8
MAX4312/MAX4315
7.4
9.4
SHDN ≤ VIL
560
750
µA
VEE + 1
V
mA
LOGIC CHARACTERISTICS (SHDN, A0, A1, A2)
Logic-Low Threshold
VIL
Logic-High Threshold
VIH
Logic-Low Input Current
IIL
VIL ≤ VEE + 1V
Logic-High Input Current
IIH
VIH ≥ VCC - 1V
VCC - 1
-500
V
-320
0.3
µA
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
-3dB Bandwidth
-0.1dB Bandwidth
SYMBOL
BW(-3dB)
BW(-0.1dB)
CONDITIONS
VOUT = 100mVp-p
VOUT = 100mVp-p
MIN
TYP
MAX4310
280
MAX4311
345
MAX4312
265
MAX4313
150
MAX4314
127
MAX
UNITS
MHz
MAX4315
97
MAX4310
60
MAX4311
40
MAX4312
35
MAX4313
40
MAX4314
78
MAX4315
46
MHz
_______________________________________________________________________________________
3
MAX4310–MAX4315
DC ELECTRICAL CHARACTERISTICS (continued)
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
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
Full-Power Bandwidth
SYMBOL
FPBW
CONDITIONS
VOUT = 2Vp-p
MIN
110
MAX4311
100
MAX4312
80
MAX4313
40
MAX4314
90
Settling Time to 0.1%
SR
tS
Gain Matching
Differential Gain Error
Differential Phase Error
Spurious-Free Dynamic
Range
DG
DG
SFDR
Second Harmonic Distortion
Third Harmonic Distortion
Total Harmonic Distortion
4
THD
VOUT = 2Vp-p
VOUT = 2Vp-p
MAX
UNITS
MHz
MAX4315
Slew Rate
TYP
MAX4310
70
MAX4310
460
MAX4311
430
MAX4312
345
MAX4313
540
MAX4314
430
MAX4315
310
MAX4310/MAX4311/MAX4312
42
MAX4313/MAX4314/MAX4315
25
ns
Matching between channels over -3dB
bandwidth
0.05
AVCL = +1V/V,
RL = 150Ω to
VCC/2
MAX4310/MAX4311/
MAX4312
0.06
RL = 150Ω to
VCC/2
MAX4313/MAX4314/
MAX4315
0.09
AVCL = +1V/V,
RL = 150Ω to
VCC/2
MAX4310/MAX4311/
MAX4312
0.08
RL = 150Ω to
VCC/2
MAX4313/MAX4314/
MAX4315
dB
%
degrees
MAX4310/
MAX4311/
MAX4312
f = 3kHz
MAX4313/
MAX4314/
MAX4315
VOUT = 2Vp-p
0.03
-89
f = 2kHz
-80
f = 20kHz
-47
f = 3kHz
-95
dBc
f = 2kHz
-72
f = 20kHz
-47
f = 1MHz,
VOUT = 2Vp-p
MAX4310/MAX4311/MAX4312
-85
MAX4313/MAX4314/MAX4315
-76
f = 1MHz,
VOUT = 2Vp-p
MAX4310/MAX4311/MAX4312
-88
MAX4313/MAX4314/MAX4315
-95
f = 1MHz,
VOUT = 2Vp-p
MAX4310/MAX4311/MAX4312
-83
MAX4313/MAX4314/MAX4315
-76
dBc
dBc
dBc
_______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
(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
f = 10MHz,
VIN = 2Vp-p
All-Hostile Crosstalk
MIN
TYP
MAX4310/MAX4313
-95
MAX4311/MAX4314
-60
MAX4312MAX4315
-52
SHDN = 0, f = 10MHz, VIN = 2Vp-p
Off-Isolation
Output Impedance
ZOUT
Input Capacitance
MAX
UNITS
dB
-82
dB
f = 10MHz
3
Ω
CIN
Channel on or off
2
pF
Input Voltage-Noise Density
en
f = 10kHz
14
nV/√Hz
Input Current-Noise Density
in
f = 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
10
mVp-p
Switching Transient
Typical Operating Characteristics
(VCC = +5V, VEE = 0V, SHDN ≥ 4V, RL = 150Ω to VCC/2, VCM = 1.5V, AVCL = +1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA = +25°C, unless otherwise noted.)
0.4
2
GAIN FLATNESS (dB)
GAIN (dB)
VOUT = 100mVp-p
0.3
1
0
-1
-2
-3
4
MAX4310/15 toc02
VOUT = 100mVp-p
MAX4310
LARGE-SIGNAL GAIN vs. FREQUENCY
3
0.2
1
0.1
0
-0.1
-0.2
0
-1
-2
-3
-4
-0.3
-4
-5
-0.4
-5
-6
-0.5
100k
1M
10M
FREQUENCY (Hz)
100M
1G
VOUT = 2Vp-p
2
GAIN (dB)
3
0.5
MAX4310-01
4
MAX4310
GAIN FLATNESS vs. FREQUENCY
MAX4310/15-03
MAX4310
SMALL-SIGNAL GAIN vs. FREQUENCY
-6
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
100M
1G
FREQUENCY (Hz)
_______________________________________________________________________________________
5
MAX4310–MAX4315
AC ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0V, SHDN ≥ 4V, RL = 150Ω to VCC/2, VCM = 1.5V, AVCL = +1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA = +25°C, unless otherwise noted.)
-3
-4
-5
-0.2
-2
-0.4
-3
-4
-5
-6
-0.6
-6
-7
-0.7
-7
-8
-0.8
-8
10
100
1000
10
100
1000
1
100
1000
FREQUENCY (MHz)
MAX4312
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4312
GAIN FLATNESS vs. FREQUENCY
MAX4312
LARGE-SIGNAL GAIN vs. FREQUENCY
-3
-4
-5
0
-0.1
-1
-0.2
-2
-0.3
-0.4
-3
-4
-0.5
-5
-6
-0.6
-6
-7
-0.7
-7
-8
-0.8
-8
1
10
100
1000
1
10
100
VOUT = 2Vp-p
1
GAIN (dB)
-2
MAX4310/15 toc09
0
GAIN FLATNESS (dB)
-1
VOUT = 100mVp-p
0.1
2
MAX4310/15 toc08
0.2
MAX4310/15 toc07
0
1000
1
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4313
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4313
GAIN FLATNESS vs. FREQUENCY
MAX4313
LARGE-SIGNAL GAIN vs. FREQUENCY
1
0
-1
-2
-3
4
3
1
0.2
0.1
0
0
-1
-0.1
-2
-0.2
-3
-4
-0.3
-4
-0.4
-5
-6
-0.5
100k
1M
10M
FREQUENCY (Hz)
100M
1G
VOUT = 2Vp-p
2
-5
-6
MAX4310/15-toc12
VOUT = 100mVp-p
0.3
GAIN FLATNESS (dB)
2
0.4
GAIN (dB)
VOUT = 100mVp-p
MAX4310/15-toc11
0.5
MAX4310/15-toc10
4
3
10
FREQUENCY (MHz)
VOUT = 100mVp-p
1
1
FREQUENCY (MHz)
2
GAIN (dB)
-1
-0.3
VOUT = 2Vp-p
0
-0.1
-0.5
1
6
0
GAIN FLATNESS (dB)
GAIN (dB)
-2
2
1
GAIN (dB)
0
-1
VOUT = 100mVp-p
0.1
MAX4311
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4310/15 toc05
MAX4311 toc04
VOUT = 100mVp-p
1
MAX4311
GAIN FLATNESS vs. FREQUENCY
0.2
MAX4311 toc06
MAX4311
SMALL-SIGNAL GAIN vs. FREQUENCY
2
GAIN (dB)
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
FREQUENCY (Hz)
_______________________________________________________________________________________
100M
1G
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
-1
-2
-3
-4
-5
0
-0.1
-1
-0.2
-2
-0.3
-3
-0.4
-4
-0.5
-5
-0.6
-6
-7
-0.7
-7
-8
-0.8
1
100
1000
10
1
100
1
1000
10
100
1000
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4315
SMALL-SIGNAL GAIN vs. FREQUENCY
MAX4315
GAIN FLATNESS vs. FREQUENCY
MAX4315
LARGE-SIGNAL GAIN vs. FREQUENCY
-1
-2
-3
-4
2
0
-1
-0.2
-2
-3
-0.4
-4
-0.5
-5
-6
-0.6
-6
-7
-0.7
-7
-8
-0.8
-5
1
10
100
1000
VOUT = 2Vp-p
1
-0.1
-0.3
MAX4310/15 toc18
0
GAIN FLATNESS (dB)
0
VOUT = 100mVp-p
0.1
GAIN (dB)
VOUT = 100mVp-p
1
MAX4310/15 toc17
0.2
MAX4310/15 toc16
2
10
VOUT = 2Vp-p
1
-6
-8
-8
1
10
100
1
1000
10
100
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
MAX4310/MAX4311/MAX4312
HARMONIC DISTORTION vs. FREQUENCY
MAX4313/MAX4314/MAX4315
HARMONIC DISTORTION vs. FREQUENCY
POWER-SUPPLY REJECTION
vs. FREQUENCY
-40
-50
-60
2ND HARMONIC
-70
-80
VOUT = 2Vp-p
-30
-40
-50
2ND HARMONIC
-60
-70
-80
3RD HARMONIC
-90
1M
10M
FREQUENCY (Hz)
100M
-20
-30
-40
-50
-60
-70
-80
-90
-100
100k
0
-10
3RD HARMONIC
-90
-100
1000
MAX4310/15-21
-30
-20
POWER-SUPPLY REJECTION (dB)
VOUT = 2Vp-p
MAX4310/15-20
MAX4310/15 toc19
-20
HARMONIC DISTORTION (dBc)
GAIN (dB)
2
MAX4310/15 toc14
0
GAIN FLATNESS (dB)
0
VOUT = 100mVp-p
0.1
GAIN (dB)
VOUT = 100mVp-p
1
GAIN (dB)
0.2
MAX4310/15 toc13
2
HARMONIC DISTORTION (dBc)
MAX4314
LARGE-SIGNAL GAIN vs. FREQUENCY
MAX4314
GAIN FLATNESS vs. FREQUENCY
MAX4310/15 toc15
MAX4314
SMALL-SIGNAL GAIN vs. FREQUENCY
-100
100k
1M
10M
FREQUENCY (Hz)
100M
100k
1M
10M
100M
1G
FREQUENCY (Hz)
_______________________________________________________________________________________
7
MAX4310–MAX4315
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0V, SHDN ≥ 4V, RL = 150Ω to VCC/2, VCM = 1.5V, AVCL = +1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0V, SHDN ≥ 4V, RL = 150Ω to VCC/2, VCM = 1.5V, AVCL = +1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA = +25°C, unless otherwise noted.)
MAX4310/MAX4311/MAX4312
MAX4310/MAX4313
OFF-ISOLATION vs. FREQUENCY
COMMON-MODE REJECTION vs. FREQUENCY
All-HOSTILE CROSSTALK vs. FREQUENCY
-40
-50
-60
MAX4311
MAX4314
-40
-60
MAX4312
MAX4315
-80
-70
-80
-70
-130
-120
1M
10M
100M
-150
100k
1G
1M
10M
100M
1G
FREQUENCY (Hz)
MAX4312/MAX4315
ALL-HOSTILE CROSSTALK vs. FREQUENCY
MAX4311/MAX4314
ALL-HOSTILE CROSSTALK vs. FREQUENCY
10
30
10
CROSSTALK (dB)
-10
-30
-50
-70
MAX4310/15 toc26
30
-10
-30
-50
-70
-90
-90
-110
-110
-130
-130
-150
-150
0.1
1
10
100
1
10
100
FREQUENCY (MHz)
VOLTAGE-NOISE DENSITY vs.
FREQUENCY (INPUT REFERRED)
CURRENT-NOISE DENSITY vs.
FREQUENCY (INPUT REFERRED)
1
0.1
100k
1M
10M
10
100
1k
10k
100k
FREQUENCY (Hz)
1M
10M
MAX4310/15 toc29
IN
(1V/div)
OUT
(1V/div)
100
1k
10k
100k
1G
MAX4310
LARGE-SIGNAL PULSE RESPONSE
10
10
100M
FREQUENCY (Hz)
100
CURRENT-NOISE DENSITY (pA/√Hz)
MAX4310/15 toc28a
10
1
10
1000
OUTPUT IMPEDANCE vs. FREQUENCY
100
1000
FREQUENCY (MHz)
100
100
0.01
0.1
1000
10
FREQUENCY (MHz)
50
MAX4310/15 toc25
50
1
0.1
FREQUENCY (Hz)
MAX4310/15-toc27
100k
MAX4310/15 toc30
10k
OUTPUT IMPEDANCE (Ω)
-100
CROSSTALK (dB)
-30
-50
-110
-90
8
10
-10
-90
MAX4310
MAX4313
-100
MAX4310/15-toc24
MAX4310/15-toc23
-20
-30
50
30
CROSSTALK (dB)
-20
ISOLATION (dB)
COMMON-MODE REJECTION (dB)
0
MAX4310/15-toc22
0
-10
VOLTAGE-NOISE DENSITY (nV/√Hz)
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
1M
10M
FREQUENCY (Hz)
_______________________________________________________________________________________
10ns/div
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
OUT
(1V/div)
IN
(1V/div)
MAX4310/15-toc33
MAX43110/15 toc32
MAX4310/15-toc33
IN
(1V/div)
IN
(500mV/div)
OUT
(1V/div)
OUT
(1V/div)
MAX4314
LARGE-SIGNAL PULSE RESPONSE
MAX4315
LARGE-SIGNAL PULSE RESPONSE
MAX4310
SMALL-SIGNAL PULSE RESPONSE
IN
(500mV/div)
VOUT
(1V/div)
IN
(500mV/div)
MAX4310/15 toc36
10ns/div
MAX4310/15 toc35
10ns/div
MAX4310/15-toc33
10ns/div
IN
(50mV/div)
OUT
(50mV/div)
OUT
(IV/div)
MAX4311
SMALL-SIGNAL PULSE RESPONSE
MAX4312
SMALL-SIGNAL PULSE RESPONSE
MAX4313
SMALL-SIGNAL PULSE RESPONSE
IN
(50mV/div)
OUT
(50mV/div)
IN
(50mV/div)
IN
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
10ns/div
MAX4310/15-toc39
10ns/div
MAX4310/15 toc38
10ns/div
MAX4310/15 toc37a
10ns/div
10ns/div
10ns/div
_______________________________________________________________________________________
9
MAX4310–MAX4315
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0V, SHDN ≥ 4V, RL = 150Ω to VCC/2, VCM = 1.5V, AVCL = +1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA = +25°C, unless otherwise noted.)
MAX4312
MAX4311
MAX4313
LARGE-SIGNAL PULSE RESPONSE
LARGE-SIGNAL PULSE RESPONSE
LARGE-SIGNAL PULSE RESPONSE
Typical Operating Characteristics (continued)
(VCC = +5V, VEE = 0V, SHDN ≥ 4V, RL = 150Ω to VCC/2, VCM = 1.5V, AVCL = +1V/V (MAX4310/MAX4311/MAX4312), AVCL = +2V/V
(MAX4313/MAX4314/MAX4315), TA = +25°C, unless otherwise noted.)
IN
(50mV/div)
10ns/div
MAX4310
SMALL-SIGNAL PULSE RESPONSE
(CL = 22pF)
MAX4313
SMALL-SIGNAL PULSE RESPONSE
(CL = 10pF)
MAX4313
SMALL-SIGNAL PULSE RESPONSE
(CL = 22pF)
IN
(50mV/div)
IN
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
MAX431015-toc45
10ns/div
MAX4310/15-toc44
10ns/div
IN
(50mV/div)
10ns/div
10ns/div
10ns/div
MAX4310/15 toc46
A0
(2.5V/div)
OUT
(10mV/div)
MAX4310-TOC27
SHUTDOWN RESPONSE TIME
CHANNEL-SWITCHING TRANSIENT
SHDN
(2.0V/div)
OUT
(1V/div)
20ns/div
10
IN
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
OUT
(50mV/div)
MAX4310/15-toc42
MAX4311 toc
MAX4311 toc
IN
(50mV/div)
MAX4310
SMALL-SIGNAL PULSE RESPONSE
(CL = 10pF)
MAX4315
SMALL-SIGNAL PULSE RESPONSE
MAX4314
SMALL-SIGNAL PULSE RESPONSE
MAX4310-TOC22
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
100ns/div
______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
PIN
MAX4310
SO/µMAX
MAX4311
MAX4312
SO/QSOP
MAX4313
SO/µMAX
MAX4314
MAX4315
SO/QSOP
NAME
FUNCTION
SO
QSOP
SO
QSOP
1
2
2
3
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
3
4
4
4
3
4
4
4
VCC
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
VEE
Negative Power Supply. Ground
for single-supply operation.
Amplifier Feedback Input
6
11
13
13
6
11
13
7
13
15
15
—
—
—
—
FB
—
—
—
—
7
13
15
15
GND
Ground
14
16
16
8
14
16
16
OUT
Amplifier Output
—
N.C.
Not connected. Tie to ground
plane for optimal performance.
8
—
3, 6, 3, 6, 8,
9
9, 11
—
—
3, 6, 3, 6, 8,
9
9, 11
13
Shutdown Input
______________________________________________________________________________________
11
MAX4310–MAX4315
Pin Description
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
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, 4channel, 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 minimized by forcing the SHDN pin low. The input multiplexers feature short 40ns channel-switching times and
small 10mVp-p switching transients. The input capacitance 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 performance.
Applications Information
Rail-to-Rail Outputs, Ground-Sensing Input
The input common-mode range extends from the negative supply rail to VCC - 2.7V with excellent commonmode rejection. Beyond this range, multiplexer
switching times may increase and the amplifier output
is a nonlinear function of the input, but does not undergo phase reversal or latchup.
The output swings to within 250mV of VCC and 40mV of
VEE with a 10kΩ load. With a 150Ω load 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 constraining 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 application. Large resistor values increase voltage noise and
interact with the amplifier’s input and PC board capacitance. 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 1kΩ resistors, 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 100Ω extends the pole frequency to 1.59GHz,
but could limit output swing by adding 200Ω in parallel
with the amplifier’s load resistor.
Table 1 shows suggested RF and RG values for the
MAX4310/MAX4311/MAX4312 when operating in the noninverting configuration (shown in Figure 1). These values
provide optimal AC response using surface-mount resistors and good layout techniques, as discussed in the
Layout and Power-Supply Bypassing section.
Stray capacitance at the FB pin causes feedback resistor decoupling and produces peaking in the frequencyresponse 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 consistency over a wide range of production lots.
75Ω CABLE
4
IN0
OUT 8
RT
75Ω
75Ω CABLE
RT
75Ω
RF
75Ω CABLE
5
RT
75Ω
FB 7
IN1
A0
RG
MAX4310
1
Figure 1. MAX4310 Noninverting Gain Configuration
12
RT
75Ω
Table 1. Bandwidth and Gain with
Suggested Gain-Setting resistors
(MAX4310/MAX4311/MAX4312)
GAIN
(V/V)
GAIN
(d B)
RF
(Ω)
RG
(Ω)
-3dB BW
(MHz)
1
0
2
6
0
∝
280
60
500
500
80
30
5
14
500
120
20
4
10
20
500
56
10
2
______________________________________________________________________________________
0.1dB BW
(MHz)
0
0
-1
-20
-2
-40
-3
INPUT CURRENT ( µA)
20
-60
-80
-100
-4
-5
-6
-7
-120
-8
-140
-9
-160
-10
0
50 100 150 200 250 300 350 400 450 500
LOGIC-LOW THRESHOLD (mV ABOVE VEE)
Figure 2. Logic-Low Input Current vs. VIL (SHDN, A0, A1, A2)
LOGIC INPUT
50 100 150 200 250 300 350 400 450 500
LOGIC-LOW THRESHOLD (mV ABOVE VEE)
Figure 4. Logic-Low Input Current vs. VIL with 10kΩ Series
Resistor
Layout and Power-Supply Bypassing
10kΩ
IN-
0
SHDN, A0, A1, A2
OUT
MAX431_
IN+
Figure 3. Circuit to Reduce Logic-Low Input Current
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 supply current to 560µA and places the output into a highimpedance 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 calculating 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 500Ω thinfilm resistors. The impedance of the internal feedback
resistors must be taken into account when operating
multiple MAX4313/MAX4314/MAX4315s in large multiplexer applications. For normal operation, drive SHDN
high. If the shutdown function is not used, connect
SHDN to VCC.
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 bypassing 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
a capacitance 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.
______________________________________________________________________________________
13
MAX4310–MAX4315
INPUT CURRENT (µA)
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
4
IN0
OUT 8
RT
75Ω
75Ω CABLE
OUT
RT
75Ω
500Ω
RT
75Ω
75Ω CABLE
5
IN1
A0
RT
75Ω
500Ω
MAX4310-FIG08
75Ω CABLE
ISOLATION RESISTANCE RISO (Ω)
30
25
20
15
MAX4313 GND
1
10
7
0
50
100
150
200
250
CAPACITIVE LOAD (pF)
Figure 5. Video Line Driver
Figure 8. Optimal Isolation Resistance vs. Capacitive Load
2
3
2
10pF LOAD
1
GAIN (dB)
5pF LOAD
-3
-3
-4
-4
-5
VOUT = 100mVp-p
90pF LOAD
VOUT = 100mVp-p
-6
100k
1M
10M
100M
100k
1G
Figure 6. Small-Signal Gain vs. Frequency with a Capacitive
Load and No-Isolation Resistor
75Ω CABLE
4
IN0
OUT 8
RISO
RT
75Ω
500Ω
CL
75Ω CABLE
5
IN1
A0
RL
500Ω
MAX4313 GND
1
1M
10M
100M
1G
FREQUENCY (Hz)
FREQUENCY (Hz)
7
Figure 7. Using an Isolation Resistor (RISO) for High-Capacitive
Loads
14
-1
-2
-6
RT
75Ω
47pF LOAD
0
-2
-5
120pF LOAD
1
0
-1
MAX4310-FIG09
15pF LOAD
3
4
MAX4310-FIG06
4
GAIN (dB)
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Figure 9. Small-Signal Gain vs. Frequency with a Capacitive
Load and 27Ω No-Isolation Resistor
The bypass capacitors should include a 100nF, ceramic surface-mount capacitor between each supply pin
and the ground plane, located as close to the package
as possible. Optionally, place a 10µF tantalum capacitor 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 tantalum capacitor to the VCC and VEE pins. To minimize
parasitic inductance, keep PC traces short and use surface-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
MAX4310/MAX4313
SHDN
A2
A1
A0
CHANNEL SELECTED
0
—
—
X
None, High-Z Output
1
—
—
0
0
1
—
—
1
1
MAX4311/MAX4314
SHDN
A2
A1
A0
CHANNEL SELECTED
0
—
X
X
None, High-Z Output
1
—
0
0
0
1
—
0
1
1
1
—
1
0
2
1
—
1
1
3
MAX4312/MAX4315
Figure 10. High-Speed EV Board Layout—Component Side
Figure 11. High-Speed EV Board Layout—Solder Side
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
A correctly terminated transmission line is purely resistive and presents no capacitive load to the amplifier.
Reactive loads decrease phase margin and may produce excessive ringing and oscillation (see Typical
Operating Characteristics).
SHDN
A2
A1
A0
CHANNEL SELECTED
0
X
X
X
None, High-Z Output
1
0
0
0
0
1
0
0
1
1
1
0
1
0
2
1
0
1
1
3
1
1
0
0
4
1
1
0
1
5
1
1
1
0
6
1
1
1
1
7
Another concern when driving capacitive loads originates 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 capacitive loads, they are capable of driving up to 20pF without
oscillations. However, some peaking may occur in the frequency 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 isolation resistor and a capacitive load. With higher capacitive 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.
______________________________________________________________________________________
15
MAX4310–MAX4315
Table 2. Input Control Logic
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Digital Interface
The multiplexer architecture of the MAX4310–MAX4315
ensures that no two input channels are ever connected
together. Channel selection is accomplished by applying 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 present 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 distance from the part, reducing the capacitance associated 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 distances 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 package.
Typical Operating Circuit
+4V TO +10.5V
0.1µF
3
VCC
MAX4313
5
4
IN1
OUT 8
75Ω
75Ω CABLE
VIDEO
OUTPUT
IN0
500Ω
75Ω
A0
500Ω
1
VEE SHDN
6
2 7
GND
Chip Information
TRANSISTOR COUNT: 156
16
Package Information
For the latest package outline information, go to
www.maxim-ic.com/packages.
PACKAGE TYPE
PACKAGE CODE
DOCUMENT NO.
8 SO
S8-4
21-0041
8 µMAX
U8-1
21-0036
14 Narrow SO
S14-1
21-0041
16 Narrow SO
S16-1
21-0041
16 QSOP
E16-1
21-0055
______________________________________________________________________________________
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
TOP VIEW
MAX4310
A0 1
+ -
SHDN 2
VCC
3
MUX
IN0 4
8
OUT
7
FB
6
VEE
5
IN1
SO/µMAX
MAX4311
MAX4311
A1 1
14 OUT
A0 2
13 FB
MAX4312
A1 1
16 OUT
A2 1
16 OUT
A0 2
15 FB
A1 2
15 FB
14 SHDN
A0 3
12 SHDN
N.C. 3
VCC 4
11 VEE
VCC 4
13 VEE
VCC 4
13 VEE
IN0 5
10 IN3
IN0 5
12 IN3
IN0 5
12 IN7
N.C. 6
9 N.C.
N.C. 6
11 N.C.
IN1 6
11 IN6
IN1 7
8 IN2
IN1 7
10 IN2
IN2 7
10 IN5
N.C. 8
9 N.C.
IN3 8
9 IN4
N.C. 3
MUX
MUX
14 SHDN
MUX
SO
QSOP
MAX4314
MAX4314
MAX4313
SO/QSOP
A1 1
14 OUT
A1 1
13 GND
A0 2
500Ω
A0 1
8 OUT
500Ω
SHDN 2
VCC 3
7 GND
500Ω
6
MUX
VEE
5 IN1
IN0 4
SO/µMAX
A0 2
VCC 4
IN0 5
A2 1
15 GND
A1 2
14 SHDN
A0 3
16 OUT
500Ω
15 GND
500Ω
500Ω
12 SHDN N.C. 3
MUX
16 OUT
500Ω
500Ω
N.C. 3
MAX4315
MUX
14 SHDN
MUX
13 VEE
VCC 4
IN0 5
12 IN3
IN0 5
12 IN7
11 VEE
VCC 4
10 IN3
13 VEE
N.C. 6
9
N.C.
N.C. 6
11 N.C.
IN1 6
11 IN6
IN1 7
8
IN2
IN1 7
10 IN2
IN2 7
10 IN5
N.C. 8
9 N.C.
IN3 8
9 IN4
SO
QSOP
SO/QSOP
N.C. = NOT INTERNALLY CONNECTED. TIE TO GROUND PLANE FOR OPTIMAL PERFORMANCE.
______________________________________________________________________________________
17
MAX4310–MAX4315
Pin Configurations
MAX4310–MAX4315
High-Speed, Low-Power, Single-Supply
Multichannel, Video Multiplexer-Amplifiers
Revision History
REVISION
NUMBER
REVISION
DATE
0
7/98
Initial release
1
4/99
Added new parts to data sheet.
2
12/02
Corrected MAX4314 Pin Configuration.
17
3
3/08
Updated Typical Operating Characteristics.
8
DESCRIPTION
PAGES
CHANGED
—
1–20
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.