For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
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 450A 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/s, 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 MAX 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
Features
o
Low Supply Current: 1.5mA per Amplifier
o
Fast Enable/Disable Times: 120ns/35ns
o
Very Low Switching Transient: 45mV
p-p
o
High Speed
200MHz -3dB Small-Signal Bandwidth
(MAX4188, A
VCL
+2)
250MHz -3dB Small-Signal Bandwidth
(MAX4189, A
VCL
+1)
185MHz -3dB Small-Signal Bandwidth
(MAX4190, A
VCL
+2)
o
High Slew Rate
350V/s (MAX4188, A
VCL
+2)
175V/s (MAX4189, A
VCL
+1)
o
Excellent Video Specifications
85MHz -0.1dB Gain Flatness (MAX4190)
30MHz -0.1dB Gain Flatness (MAX4189)
Differential Gain/Phase Errors
0.03%/0.05 (MAX4188)
o
Low-Power Disable Mode
Inputs Isolated, Outputs Placed in High-Z
Supply Current Reduced to 450A per Amplifier
o
Fast Settling Time of 22ns to 0.1%
o
Low Distortion
70dB SFDR (f
c
= 5MHz, V
O
= 2V
p-p
, MAX4188)
o
Available in Space-Saving Packages
16-Pin QSOP (MAX4188/MAX4189)
8-Pin MAX (MAX4190)
MAX4188/MAX4189/MAX4190
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
________________________________________________________________
Maxim Integrated Products
1
19-1369; Rev 0; 7/98
EVALUATION KIT
AVAILABLE
Ordering Information continued at end of data sheet.
Ordering Information
Pin Configuration appears at end of data sheet.
PART
TEMP. RANGE
PIN-PACKAGE
MAX4188
ESD
-40C to +85C
14 SO
MAX4188EEE
-40C to +85C
16 QSOP
8-pin MAX/SO
1
A
V
+2V/V
MAX4190
14-pin SO,
16-pin QSOP
3
A
V
+1V/V
MAX4189
14-pin SO,
16-pin QSOP
3
A
V
+2V/V
MAX4188
PIN-PACKAGE
AMPLIFIERS
PER PKG.
OPTIMIZED
FOR:
PART
Selector Guide
MAX4188/MAX4189/MAX4190
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS--Dual Supplies
(V
CC
= +5V; V
EE
= -5V; IN+ = 0; DISABLE_
3.2V; MAX4188: A
V
= +2V/V, R
F
= R
G
= 910
for R
L
= 1k
and R
F
= R
G
= 560
for R
L
= 150
; MAX4189: A
V
= +1V/V, R
F
= 1600
for R
L
= 1k
and R
F
= 1100
for R
L
= 150
; MAX4190: A
V
= +2V/V, R
F
= R
G
= 1300
for R
L
= 1k
, R
F
= R
G
= 680
for R
L
= 150
; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are specified at
T
A
= +25C.)
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 (V
CC
to V
EE
)................................................+12V
IN_+, IN_-, DISABLE_ Voltage .........(V
EE
- 0.3V) to (V
CC
+ 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 (T
A
= +70C)
8-Pin SO (derate 5.88mW/C above +70C)...............471mW
8-Pin MAX (derate 4.1mW/C above +70C) ............330mW
14-Pin SO (derate 8.3mW/C above +70C) ..................667mW
16-Pin QSOP (derate 8.3mW/C above +70C)...............667mW
Operating Temperature Range............................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
SYMBOL
CONDITIONS
UNITS
Operating Supply Voltage
Inferred from PSRR tests
V
Input Offset Voltage
V
OS
V
CM
= 0 (Note 1)
1
6
mV
Input Offset Voltage Tempco
TC
VOS
V/C
Input Offset Voltage Matching
mV
Input Bias Current (Positive Input)
I
B+
A
Input Bias Current (Negative Input)
I
B-
A
Input Resistance (Positive Input)
R
IN+
-3.1V
V
CM
3.1V,
V
IN
+ - V
IN
-
1V
k
Input Resistance (Negative Input)
R
IN-
Input Capacitance (Positive Input)
C
IN
pF
Common-Mode Rejection Ratio
CMRR
-3.1V
V
CM
3.1V
dB
Open-Loop Transresistance
T
R
-3.1V
V
OUT
3.1V, R
L
= 1k
-2.8V
V
OUT
2.8V, R
L
= 150
M
Output Voltage Swing
V
SW
R
L
= 1k
V
R
L
= 150
Output Current
I
OUT
R
L
= 30
mA
Output Short-Circuit Current
I
SC
mA
Output Resistance
R
OUT
Disabled Output Leakage Current
I
OUT(OFF)
DISABLE_
V
IL
, V
OUT
3.5V (Note 2)
A
Disabled Output Capacitance
C
OUT(OFF)
DISABLE_
V
IL
, V
OUT
3.5V
pF
DISABLE Low Threshold
V
IL
(Note 3)
V
DISABLE High Threshold
V
IH
(Note 3)
V
MIN
TYP
MAX
2.25
5.5
10
V
CC
- 3
1
1
10
2
12
100
350
300
2.5
56
68
V
CC
- 1.8
1
7
0.3
2
3.5
4.0
3.0
3.3
20
55
60
0.2
0.8
5
5
PARAMETER
DISABLE Input Current
I
IN
V
EE
DISABLE_
V
CC
0.1
2
A
Power-Supply Rejection Ratio (V
CC
)
PSRR+
V
EE
= -5V, V
CC
= 4.5V to 5.5V
60
75
dB
Quiescent Supply Current (per Amplifier)
I
S
R
L
= open
1.5
1.85
mA
Disabled Supply Current (per Amplifier)
I
S(OFF)
DISABLE_
V
IL
, R
L
= open
0.45
0.65
mA
Power-Supply Rejection Ratio (V
EE
)
PSRR-
V
CC
= 5V, V
EE
= -4.5V to -5.5V
60
73
dB
Input Voltage Range
V
CM
Guaranteed by CMRR test
3.1
3.4
V
MAX4188/MAX4189/MAX4190
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS--Single Supply
(V
CC
= +5V; V
EE
= 0; IN+ = 2.5V; DISABLE_
3.2V; R
L
to V
CC
/ 2; MAX4188: A
V
= +2V/V, R
F
= R
G
= 1.1k
for R
L
= 1k
and R
F
= R
G
= 620
for R
L
= 150
; MAX4189: A
V
= +1V/V, R
F
= 1500
for R
L
= 1k
and R
F
= 1600
for R
L
= 150
; MAX4190: A
V
= +2V/V, R
F
=
R
G
= 1300
for R
L
= 1k
, R
F
= R
G
= 680
for R
L
= 150
; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are specified at
T
A
= +25C.)
R
L
= 30
R
L
= open
R
L
= 150
R
L
= 1k
mA
1.45V
V
OUT
3.55V, R
L
= 150
1.5
1.85
1.3V
V
OUT
3.7V, R
L
= 1k
1.5V
V
CM
3.5V
1.6V
V
CM
3.4V,
V
IN+
- V
IN-
1V
V
CM
= 2.5V (Note 1)
Guaranteed by CMRR test
I
S
Quiescent Supply Current
(per Amplifier)
DISABLE_
V
IL
, R
L
= open
Inferred from PSRR tests
CONDITIONS
0.2
R
OUT
Output Resistance
mA
50
I
SC
Output Short-Circuit Current
mA
16
28
I
OUT
Output Current
V
1.4 to
1.15 to
3.6
3.85
V
SW
mA
1.2 to
0.9 to
3.8
4.1
Output Voltage Swing
M
0.2
1.0
T
R
Open-Loop Transresistance
1.0
6.5
0.45
0.65
dB
48
65
CMRR
Common-Mode Rejection Ratio
pF
2.5
C
IN
Input Capacitance
(Positive Input)
300
R
IN-
Input Resistance
(Negative Input)
k
100
350
R
IN+
Input Resistance
(Positive Input)
A
2
12
I
B-
Input Bias Current
(Negative Input)
A
1
10
I
B+
Input Bias Current
(Positive Input)
I
S(OFF)
Disabled Supply Current
(per Amplifier)
mV
1
Input Offset Voltage Matching
V/C
10
TC
VOS
Input Offset Voltage Tempco
mV
1.5
6.0
V
OS
Input Offset Voltage
V
1.6 to
1.3 to
3.4
3.7
V
CM
Input Voltage Range
V
4.5
5.5
Operating Supply Voltage
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
DISABLE_
V
IL
, 1.2V
V
OUT
3.8V
DISABLE_
V
IL
, 1.2V
V
OUT
3.8V (Note 2)
pF
5
C
OUT(OFF)
Disabled Output Capacitance
A
0.8
5
I
OUT(OFF)
Disabled Output Leakage
Current
(Note 3)
(Note 3)
V
V
CC
- 1.8
V
IH
DISABLE High Threshold
V
V
CC
- 3
V
IL
DISABLE Low Threshold
V
CC
= 4.5V to 5.5V
0
DISABLE_
V
CC
dB
60
75
PSRR+
Power-Supply Rejection
Ratio (V
CC
)
A
0.1
2
I
IN
DISABLE Input Current
V/s
MAX4188/MAX4189/MAX4190
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
4
_______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS--Dual Supplies (MAX4188)
(V
CC
= +5V, V
EE
= -5V, V
IN
= 0, DISABLE_
3V, A
V
= +2V/V, R
F
= R
G
= 910
for R
L
= 1k
or R
F
= R
G
= 560
for R
L
= 150
;
T
A
= +25C, unless otherwise noted.)
Positive input
Negative input
NTSC
R
L
= 1k
f = 10kHz
NTSC
R
L
= 150
pA/
Hz
R
L
= 1k
f
C
= 5MHz,
V
OUT
= 2Vp-p
f
C
= 5MHz,
V
OUT
= 2Vp-p
R
L
= 1k
V
OUT
= 4V step
i
n
f
C
= 5MHz,
V
OUT
= 2Vp-p
V
OUT
= 2Vp-p
R
L
= 150
R
L
= 1k
R
L
= 150
R
L
= 1k
R
L
= 150
V
OUT
= 4V step
CONDITIONS
R
L
= 1k
R
L
= 150
%
0.04
DG
Differential Gain Error
0.03
R
L
= 150
R
L
= 1k
degrees
0.32
DP
Differential Phase Error
0.05
R
L
= 150
R
L
= 1k
dBc
-56
Third Harmonic Distortion
-73
R
L
= 150
R
L
= 1k
dBc
-66
Second Harmonic Distortion
-70
R
L
= 150
Input Noise Current Density
dB
56
SFDR
Spurious-Free Dynamic Range
70
ns
12
Rise/Fall Time
0.25
4
MHz
160
BW
-3dB
200
Small-Signal -3dB Bandwidth
10
ns
22
t
S
Settling Time to 0.1%
350
MHz
100
BW
LS
Large-Signal -3dB Bandwidth
dB
0.1
Peaking
60
MHz
80
BW
0.1dB
Bandwidth for 0.1dB Flatness
100
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
f = 10MHz
f = 10kHz
4
Z
OUT
Output Impedance
nV/
Hz
2
e
n
Input Noise Voltage Density
f = 10MHz, input referred
f = 10MHz, input referred
dB
-65
All Hostile Off Isolation
dB
-55
Crosstalk
Delay from DISABLE to 90% of V
OUT
,
V
IN
= 0.5V
ns
120
t
ON
Amplifier Enable Time
MHz
100
Gain Matching to 0.1dB
Positive transient
Delay from DISABLE to 10% of V
OUT
,
V
IN
= 0.5V
30
ns
35
t
OFF
Amplifier Disable Time
Negative transient
mV
15
Disable/Enable Switching
Transient
5
Rise time
Fall time
V
OUT
= 4V step,
R
L
= 150
V/s
280
SR
Slew Rate
Positive slew
Negative slew
V/s
MAX4188/MAX4189/MAX4190
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
_______________________________________________________________________________________
5
Positive input
Negative input
NTSC
R
L
= 1k
f = 10kHz
NTSC
R
L
= 150
pA/
Hz
R
L
= 1k
f
C
= 5MHz,
V
OUT
= 2Vp-p
5
f
C
= 5MHz,
V
OUT
= 2Vp-p
R
L
= 1k
V
OUT
= 4V step
i
n
f
C
= 5MHz,
V
OUT
= 2Vp-p
V
OUT
= 2Vp-p
R
L
= 150
R
L
= 1k
R
L
= 150
R
L
= 1k
R
L
= 150
V
OUT
= 4V step
CONDITIONS
R
L
= 1k
R
L
= 150
%
0.18
DG
Differential Gain Error
0.07
R
L
= 150
R
L
= 1k
degrees
0.66
DP
Differential Phase Error
0.02
R
L
= 150
R
L
= 1k
dBc
-51
Third Harmonic Distortion
-70
R
L
= 150
R
L
= 1k
dBc
-63
Second Harmonic Distortion
-65
R
L
= 150
Input Noise Current Density
dB
51
SFDR
Spurious-Free Dynamic Range
65
ns
22
Rise/Fall Time
1.4
4
MHz
210
BW
-3dB
250
Small-Signal -3dB Bandwidth
20
ns
28
t
S
Settling Time to 0.1%
175
MHz
55
BW
LS
Large-Signal -3dB Bandwidth
dB
0.15
Peaking
7
MHz
30
BW
0.1dB
Bandwidth for 0.1dB Flatness
60
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
f = 10MHz
f = 10kHz
4
Z
OUT
Output Impedance
nV/
Hz
2
e
n
Input Noise Voltage Density
f = 10MHz, input referred
f = 10MHz, input referred
dB
-55
All Hostile Off Isolation
dB
-57
Crosstalk
Delay from DISABLE to 90% of V
OUT
,
V
IN
= 0.5V
ns
120
t
ON
Amplifier Enable Time
MHz
24
Gain Matching to 0.1dB
Positive transient
Delay from DISABLE to 10% of V
OUT
,
V
IN
= 0.5V
70
ns
40
t
OFF
Amplifier Disable Time
Negative transient
mV
110
Disable/Enable Switching
Transient
AC ELECTRICAL CHARACTERISTICS--Dual Supplies (MAX4189)
(V
CC
= +5V, V
EE
= -5V, V
IN
= 0, DISABLE_
3V, A
V
= +1V/V, R
F
= 1600
for R
L
= 1k
and R
F
= 1100
for R
L
= 150
; T
A
= +25C,
unless otherwise noted.)
V
OUT
= 4V step,
R
L
= 150
V/s
150
SR
Slew Rate
Positive slew
Negative slew
Rise time
Fall time
PDF 
ZIP