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19-1369; Rev 1; 2/07
EVAALVUAAILTAIOBNLEKIT
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
General Description
The MAX4188/MAX4189/MAX4190 are low-power,
current-feedback video amplifiers featuring fast dis-
able/enable times and low switching transients. The
triple MAX4188 and the single MAX4190 are optimized
for applications with closed-loop gains of +2V/V (6dB)
or greater and provide a -3dB bandwidth of 200MHz
and 185MHz, respectively. The triple MAX4189 is opti-
mized for closed-loop applications with gains of +1V/V
(0dB) or greater and provides a 250MHz -3dB band-
width. These amplifiers feature 0.1dB gain flatness up to
80MHz with differential gain and phase errors of 0.03%
and 0.05°. These features make the MAX4188 family
ideal for video applications.
The MAX4188/MAX4189/MAX4190 operate from a +5V
single supply or from ±2.25V to ±5.5V dual supplies.
These amplifiers consume only 1.5mA per amplifier and
are capable of delivering ±55mA of output current, making
them ideal for portable and battery-powered equipment.
The MAX4188/MAX4189/MAX4190 have a high-speed
disable/enable mode that isolates the inputs, places the
outputs in a high-impedance state, and reduces the
supply current to 450µA per amplifier. Each amplifier
can be disabled independently. High off isolation, low
switching transient, and fast enable/disable times
(120ns/35ns) allow these amplifiers to be used in a
wide range of multiplexer applications. A settling time
of 22ns to 0.1%, a slew rate of up to 350V/µs, and low
distortion make these devices useful in many general-
purpose, high-speed applications.
The MAX4188/MAX4189 are available in a tiny 16-pin
QSOP package, and the MAX4190 is available in a
space-saving 8-pin µMAX® package.
Applications
High-Definition Surveillance Video
High-Speed Switching/Multiplexing
Portable/Battery-Powered Video/Multimedia
Systems
High-Speed Analog-to-Digital Buffers
Medical Imaging
High-Speed Signal Processing
Professional Cameras
CCD Imaging Systems
RGB Distribution Amplifiers
Pin Configuration appears at end of data sheet.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Features
Low Supply Current: 1.5mA per Amplifier
Fast Enable/Disable Times: 120ns/35ns
Very Low Switching Transient: 45mVp-p
High Speed
200MHz -3dB Small-Signal Bandwidth
(MAX4188, AVCL +2)
250MHz -3dB Small-Signal Bandwidth
(MAX4189, AVCL +1)
185MHz -3dB Small-Signal Bandwidth
(MAX4190, AVCL +2)
High Slew Rate
350V/µs (MAX4188, AVCL +2)
175V/µs (MAX4189, AVCL +1)
Excellent Video Specifications
85MHz -0.1dB Gain Flatness (MAX4190)
30MHz -0.1dB Gain Flatness (MAX4189)
Differential Gain/Phase Errors
0.03%/0.05° (MAX4188)
Low-Power Disable Mode
Inputs Isolated, Outputs Placed in High-Z
Supply Current Reduced to 450µA per Amplifier
Fast Settling Time of 22ns to 0.1%
Low Distortion
70dB SFDR (fc = 5MHz, VO = 2Vp-p, MAX4188)
Available in Space-Saving Packages
16-Pin QSOP (MAX4188/MAX4189)
8-Pin µMAX (MAX4190)
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX4188ESD+ -40°C to +85°C 14 SO
S14-1
MAX4188EEE+ -40°C to +85°C 16 QSOP
E16-1
Ordering Information continued at end of data sheet.
+Denotes lead-free package.
Selector Guide
PART
OPTIMIZED AMPLIFIERS
FOR:
PER PKG.
MAX4188 AV +2V/V
3
MAX4189 AV +1V/V
MAX4190 AV +2V/V
3
1
PIN-PACKAGE
14-pin SO,
16-pin QSOP
14-pin SO,
16-pin QSOP
8-pin µMAX/SO
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE)................................................+12V
IN_+, IN_-, DISABLE_ Voltage .........(VEE - 0.3V) to (VCC + 0.3V)
Differential Input Voltage (IN_+ to IN_-)..............................±1.5V
Maximum Current into IN_+ or IN_-..................................±10mA
Output Short-Circuit Current Duration........................Continuous
Continuous Power Dissipation (TA = +70°C)
8-Pin SO (derate 5.88mW/°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 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
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—Dual Supplies
(VCC = +5V; VEE = -5V; IN+ = 0V; DISABLE_ 3.2V; MAX4188: AV = +2V/V, RF = RG = 910for RL = 1kand RF = RG = 560for
RL = 150; MAX4189: AV = +1V/V, RF = 1600for RL = 1kand RF = 1100for RL = 150; MAX4190: AV = +2V/V, RF = RG =
1300for RL = 1k, RF = RG = 680for RL = 150; TA = TMIN to TMAX, unless otherwise noted. Typical values are specified at
TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Supply Voltage
Inferred from PSRR tests
±2.25
±5.5
V
Input Voltage Range
VCM Guaranteed by CMRR test
±3.1 ±3.4
V
Input Offset Voltage
VOS VCM = 0V (Note 1)
±1 ±6
mV
Input Offset Voltage Tempco
TCVOS
±10 µV/°C
Input Offset Voltage Matching
±1 mV
Input Bias Current (Positive Input)
IB+
±1 ±10
µA
Input Bias Current (Negative Input)
IB-
±2 ±12
µA
Input Resistance (Positive Input)
RIN+ -3.1V VCM 3.1V, VIN+ - VIN-1V 100
350
k
Input Resistance (Negative Input)
RIN-
300
Input Capacitance (Positive Input)
CIN
2.5 pF
Common-Mode Rejection Ratio
CMRR -3.1V VCM 3.1V
56 68
dB
Open-Loop Transresistance
TR
-3.1V VOUT 3.1V, RL = 1k
-2.8V VOUT 2.8V, RL = 150
17
0.3 2
M
Output-Voltage Swing
VSW
RL = 1k
RL = 150
±3.5
±3.0
±4.0
±3.3
V
Output Current
IOUT RL = 30
±20 ±55
mA
Output Short-Circuit Current
ISC
±60 mA
Output Resistance
Disabled Output Leakage Current
Disabled Output Capacitance
DISABLE Low Threshold
DISABLE High Threshold
DISABLE Input Current
ROUT
IOUT(OFF)
COUT(OFF)
VIL
VIH
IIN
DISABLE_ VIL, VOUT ±3.5V (Note 2)
DISABLE_ VIL, VOUT ±3.5V
(Note 3)
(Note 3)
VEE DISABLE_ VCC
VCC - 1.8
0.2
±0.8
5
0.1
±5
VCC - 3
2
µA
pF
V
V
µA
Power-Supply Rejection Ratio (VCC)
PSRR+ VEE = -5V, VCC = 4.5V to 5.5V
60 75
dB
Power-Supply Rejection Ratio (VEE)
PSRR- VCC = 5V, VEE = -4.5V to -5.5V
60 73
dB
Quiescent Supply Current (per Amplifier)
IS RL = open
Disabled Supply Current (per Amplifier) IS(OFF) DISABLE_ VIL, RL = open
1.5 1.85
0.45 0.65
mA
mA
2 _______________________________________________________________________________________

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Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
DC ELECTRICAL CHARACTERISTICS—Single Supply
(VCC = +5V; VEE = 0V; IN+ = 2.5V; DISABLE_ 3.2V; RL to VCC / 2; MAX4188: AV = +2V/V, RF = RG = 1.1kfor RL = 1kand RF =
RG = 620for RL = 150; MAX4189: AV = +1V/V, RF = 1500for RL = 1kand RF = 1600for RL = 150; MAX4190: AV = +2V/V,
RF = RG = 1300for RL = 1k, RF = RG = 680for RL = 150; TA = TMIN to TMAX, unless otherwise noted. Typical values are speci-
fied at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Supply Voltage
Inferred from PSRR tests
4.5 5.5 V
Input Voltage Range
VCM Guaranteed by CMRR test
1.6 to 1.3 to
3.4 3.7
V
Input Offset Voltage
Input Offset Voltage Tempco
Input Offset Voltage Matching
VOS
TCVOS
VCM = 2.5V (Note 1)
±1.5
±10
±1
±6.0
mV
µV/°C
mV
Input Bias Current
(Positive Input)
IB+
±1 ±10 µA
Input Bias Current
(Negative Input)
IB-
±2 ±12 µA
Input Resistance
(Positive Input)
RIN+ 1.6V VCM 3.4V, VIN+ - VIN-1V
100 350
k
Input Resistance
(Negative Input)
RIN-
300
Input Capacitance
(Positive Input)
CIN
2.5 pF
Common-Mode Rejection Ratio
Open-Loop Transresistance
CMRR
TR
1.5V VCM 3.5V
1.3V VOUT 3.7V, RL = 1k
1.45V VOUT 3.55V, RL = 150
Output-Voltage Swing
VSW
RL = 1k
RL = 150
Output Current
Output Short-Circuit Current
Output Resistance
Disabled Output Leakage
Current
Disabled Output Capacitance
DISABLE Low Threshold
DISABLE High Threshold
DISABLE Input Current
Power-Supply Rejection
Ratio (VCC)
IOUT
ISC
ROUT
RL = 30
IOUT(OFF) DISABLE_ VIL, 1.2V VOUT 3.8V (Note 2)
COUT(OFF)
VIL
VIH
IIN
DISABLE_ VIL, 1.2V VOUT 3.8V
(Note 3)
(Note 3)
0V DISABLE_ VCC
PSRR+ VCC = 4.5V to 5.5V
48
1.0
0.2
1.2 to
3.8
1.4 to
3.6
±16
65
6.5
1.0
0.9 to
4.1
1.15 to
3.85
±28
±50
0.2
0.8 ±5
5
VCC - 1.8
0.1
VCC - 3
2
60 75
dB
M
V
mA
mA
µA
pF
V
V
µA
dB
Quiescent Supply Current
(per Amplifier)
IS RL = open
1.5 1.85 mA
Disabled Supply Current
(per Amplifier)
IS(OFF) DISABLE_ VIL, RL = open
0.45 0.65 mA
_______________________________________________________________________________________ 3

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Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
AC ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX4188)
(VCC = +5V, VEE = -5V, VIN = 0V, DISABLE_ 3V, AV = +2V/V, RF = RG = 910for RL = 1kor RF = RG = 560for RL = 150;
TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Small-Signal -3dB Bandwidth
Peaking
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
Slew Rate
BW-3dB
BW0.1dB
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
BWLS VOUT = 2VP-P
SR
VOUT = 4V step,
RL = 150
RL = 1k
RL = 150
Positive slew
Negative slew
200
160
0.25
0.1
60
80
100
100
350
280
MHz
dB
MHz
MHz
V/µs
V/µs
Settling Time to 0.1%
Rise/Fall Time
tS VOUT = 4V step
VOUT = 4V step
Rise time
Fall time
22 ns
10
ns
12
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
SFDR
DP
fC = 5MHz,
VOUT = 2VP-P
fC = 5MHz,
VOUT = 2VP-P
fC = 5MHz,
VOUT = 2VP-P
NTSC
Differential Gain Error
Input Noise-Voltage Density
Input Noise-Current Density
DG NTSC
en f = 10kHz
in f = 10kHz
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
Positive input
Negative input
70
56
-70
-66
-73
-56
0.05
0.32
0.03
0.04
2
4
5
dB
dBc
dBc
degrees
%
nV/Hz
pA/Hz
Output Impedance
Crosstalk
ZOUT
f = 10MHz
f = 10MHz, input referred
4
-55 dB
All Hostile Off-Isolation
f = 10MHz, input referred
-65 dB
Gain Matching to 0.1dB
100 MHz
Amplifier Enable Time
tON
Delay from DISABLE to 90% of VOUT,
VIN = 0.5V
120 ns
Amplifier Disable Time
tOFF
Delay from DISABLE to 10% of VOUT,
VIN = 0.5V
35 ns
Disable/Enable Switching
Transient
Positive transient
Negative transient
30
mV
15
4 _______________________________________________________________________________________

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Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
AC ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX4189)
(VCC = +5V, VEE = -5V, VIN = 0V, DISABLE_ 3V, AV = +1V/V, RF = 1600for RL = 1kand RF = 1100for RL = 150; TA =
+25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Small-Signal -3dB Bandwidth
Peaking
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
Slew Rate
BW-3dB
BW0.1dB
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
BWLS VOUT = 2VP-P
SR
VOUT = 4V step,
RL = 150
RL = 1k
RL = 150
Positive slew
Negative slew
250
210
1.4
0.15
7
30
60
55
175
150
MHz
dB
MHz
MHz
V/µs
V/µs
Settling Time to 0.1%
Rise/Fall Time
tS VOUT = 4V step
VOUT = 4V step
Rise time
Fall time
28 ns
20
ns
22
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
SFDR
DP
fC = 5MHz,
VOUT = 2VP-P
fC = 5MHz,
VOUT = 2VP-P
fC = 5MHz,
VOUT = 2VP-P
NTSC
Differential Gain Error
Input Noise-Voltage Density
Input Noise-Current Density
DG NTSC
en f = 10kHz
in f = 10kHz
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
RL = 1k
RL = 150
Positive input
Negative input
65
51
-65
-63
-70
-51
0.02
0.66
0.07
0.18
2
4
5
dB
dBc
dBc
degrees
%
nV/Hz
pA/Hz
Output Impedance
Crosstalk
ZOUT
f = 10MHz
f = 10MHz, input referred
4
-57 dB
All Hostile Off-Isolation
f = 10MHz, input referred
-55 dB
Gain Matching to 0.1dB
24 MHz
Amplifier Enable Time
tON
Delay from DISABLE to 90% of VOUT,
VIN = 0.5V
120 ns
Amplifier Disable Time
tOFF
Delay from DISABLE to 10% of VOUT,
VIN = 0.5V
40 ns
Disable/Enable Switching
Transient
Positive transient
Negative transient
70
mV
110
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