19-1369; Rev 0; 7/98
IT
TION K
VALUA
E
BLE
AVAILA
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.
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/µs (MAX4188, A
VCL
≥
+2)
175V/µs (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 450µA 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 µMAX (MAX4190)
MAX4188/MAX4189/MAX4190
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.
MAX4190
MAX4188
MAX4189
PART
OPTIMIZED
FOR:
AMPLIFIERS
PER PKG.
PIN-PACKAGE
Ordering Information
PART
MAX4188ESD
MAX4188EEE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 SO
16 QSOP
Ordering Information continued at end of data sheet.
Selector Guide
A
V
≥
+2V/V
A
V
≥
+1V/V
A
V
≥
+2V/V
3
3
1
14-pin SO,
16-pin QSOP
14-pin SO,
16-pin QSOP
8-pin µMAX/SO
1
________________________________________________________________
Maxim Integrated Products
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.
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
MAX4188/MAX4189/MAX4190
ABSOLUTE MAXIMUM RATINGS
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
= +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, 10sec) .............................+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
(V
CC
= +5V; V
EE
= -5V; IN+ = 0;
DISABLE_
≥
3.2V; MAX4188: A
V
= +2V/V, R
F
= R
G
= 910Ω for R
L
= 1kΩ and R
F
= R
G
= 560Ω for R
L
= 150Ω; MAX4189: A
V
= +1V/V, R
F
= 1600Ω for R
L
= 1kΩ and R
F
= 1100Ω for R
L
= 150Ω; MAX4190: A
V
= +2V/V, R
F
= R
G
= 1300Ω
for R
L
= 1kΩ, R
F
= R
G
= 680Ω for R
L
= 150Ω; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are specified at
T
A
= +25°C.)
PARAMETER
Operating Supply Voltage
Input Voltage Range
Input Offset Voltage
Input Offset Voltage Tempco
Input Offset Voltage Matching
Input Bias Current (Positive Input)
Input Bias Current (Negative Input)
Input Resistance (Positive Input)
Input Resistance (Negative Input)
Input Capacitance (Positive Input)
Common-Mode Rejection Ratio
Open-Loop Transresistance
Output Voltage Swing
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 (V
CC
)
Power-Supply Rejection Ratio (V
EE
)
Quiescent Supply Current (per Amplifier)
Disabled Supply Current (per Amplifier)
2
I
B+
I
B-
R
IN+
R
IN-
C
IN
CMRR
T
R
V
SW
I
OUT
I
SC
R
OUT
I
OUT(OFF)
DISABLE_
≤
V
IL
, V
OUT
≤
±3.5V (Note 2)
C
OUT(OFF)
DISABLE_
≤
V
IL
, V
OUT
≤
±3.5V
V
IL
V
IH
I
IN
PSRR+
PSRR-
I
S
I
S(OFF)
(Note 3)
(Note 3)
V
EE
≤
DISABLE_
≤
V
CC
V
EE
= -5V, V
CC
= 4.5V to 5.5V
V
CC
= 5V, V
EE
= -4.5V to -5.5V
R
L
= open
DISABLE_
≤
V
IL
, R
L
= open
60
60
V
CC
- 1.8
0.1
75
73
1.5
0.45
1.85
0.65
2
-3.1V
≤
V
CM
≤
3.1V
-3.1V
≤
V
OUT
≤
3.1V, R
L
= 1kΩ
-2.8V
≤
V
OUT
≤
2.8V, R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 30Ω
56
1
0.3
±3.5
±3.0
±20
-3.1V
≤
V
CM
≤
3.1V,
V
IN
+ - V
IN
-
≤
1V
100
V
CM
V
OS
TC
VOS
SYMBOL
CONDITIONS
Inferred from PSRR tests
Guaranteed by CMRR test
V
CM
= 0 (Note 1)
MIN
±2.25
±3.1
±3.4
±1
±10
±1
±1
±2
350
300
2.5
68
7
2
±4.0
±3.3
±55
±60
0.2
±0.8
5
V
CC
- 3
±5
±10
±12
±6
TYP
MAX
±5.5
UNITS
V
V
mV
µV/°C
mV
µA
µA
kΩ
Ω
pF
dB
MΩ
V
mA
mA
Ω
µA
pF
V
V
µA
dB
dB
mA
mA
_______________________________________________________________________________________
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
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
= 1.1kΩ for R
L
= 1kΩ and R
F
= R
G
= 620Ω for R
L
= 150Ω; MAX4189: A
V
= +1V/V, R
F
= 1500Ω for R
L
= 1kΩ and R
F
= 1600Ω for R
L
= 150Ω; MAX4190: A
V
= +2V/V, R
F
=
R
G
= 1300Ω for R
L
= 1kΩ, R
F
= R
G
= 680Ω for R
L
= 150Ω; T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are specified at
T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage
Input Voltage Range
Input Offset Voltage
Input Offset Voltage Tempco
Input Offset Voltage Matching
Input Bias Current
(Positive Input)
Input Bias Current
(Negative Input)
Input Resistance
(Positive Input)
Input Resistance
(Negative Input)
Input Capacitance
(Positive Input)
Common-Mode Rejection Ratio
Open-Loop Transresistance
I
B+
I
B-
R
IN+
R
IN-
C
IN
CMRR
T
R
1.5V
≤
V
CM
≤
3.5V
1.3V
≤
V
OUT
≤
3.7V, R
L
= 1kΩ
1.45V
≤
V
OUT
≤
3.55V, R
L
= 150Ω
R
L
= 1kΩ
Output Voltage Swing
V
SW
R
L
= 150Ω
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 (V
CC
)
Quiescent Supply Current
(per Amplifier)
Disabled Supply Current
(per Amplifier)
I
OUT
I
SC
R
OUT
I
OUT(OFF)
DISABLE_
≤
V
IL
, 1.2V
≤
V
OUT
≤
3.8V (Note 2)
R
L
= 30Ω
48
1.0
0.2
1.2 to
3.8
1.4 to
3.6
±16
1.6V
≤
V
CM
≤
3.4V,
V
IN+
- V
IN-
≤
1V
100
V
CM
V
OS
TC
VOS
Inferred from PSRR tests
Guaranteed by CMRR test
V
CM
= 2.5V (Note 1)
4.5
1.6 to
3.4
1.3 to
3.7
±1.5
±10
±1
±1
±2
350
300
2.5
65
6.5
1.0
0.9 to
4.1
1.15 to
3.85
±28
±50
0.2
0.8
5
V
CC
- 3
V
CC
- 1.8
0.1
60
75
1.5
0.45
1.85
0.65
2
±5
±10
±12
±6.0
5.5
V
V
mV
µV/°C
mV
µA
µA
kΩ
Ω
pF
dB
MΩ
MAX4188/MAX4189/MAX4190
V
mA
mA
Ω
µA
pF
V
V
µA
dB
mA
mA
C
OUT(OFF)
DISABLE_
≤
V
IL
, 1.2V
≤
V
OUT
≤
3.8V
V
IL
V
IH
I
IN
PSRR+
I
S
I
S(OFF)
(Note 3)
(Note 3)
0
≤
DISABLE_
≤
V
CC
V
CC
= 4.5V to 5.5V
R
L
= open
DISABLE_
≤
V
IL
, R
L
= open
_______________________________________________________________________________________
3
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
MAX4188/MAX4189/MAX4190
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
= 910Ω for R
L
= 1kΩ or R
F
= R
G
= 560Ω for R
L
= 150Ω;
T
A
= +25°C, unless otherwise noted.)
PARAMETER
Small-Signal -3dB Bandwidth
Peaking
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
Slew Rate
Settling Time to 0.1%
Rise/Fall Time
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
Differential Gain Error
Input Noise Voltage Density
Input Noise Current Density
Output Impedance
Crosstalk
All Hostile Off Isolation
Gain Matching to 0.1dB
Amplifier Enable Time
Amplifier Disable Time
Disable/Enable Switching
Transient
t
ON
t
OFF
Delay from
DISABLE
to 90% of V
OUT
,
V
IN
= 0.5V
Delay from
DISABLE
to 10% of V
OUT
,
V
IN
= 0.5V
Positive transient
Negative transient
DP
DG
e
n
i
n
Z
OUT
SFDR
BW
0.1dB
BW
LS
SR
t
S
SYMBOL
BW
-3dB
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
V
OUT
= 2Vp-p
V
OUT
= 4V step,
R
L
= 150Ω
V
OUT
= 4V step
V
OUT
= 4V step
f
C
= 5MHz,
V
OUT
= 2Vp-p
f
C
= 5MHz,
V
OUT
= 2Vp-p
f
C
= 5MHz,
V
OUT
= 2Vp-p
NTSC
NTSC
f = 10kHz
f = 10kHz
f = 10MHz
f = 10MHz, input referred
f = 10MHz, input referred
Positive input
Negative input
Rise time
Fall time
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
Positive slew
Negative slew
CONDITIONS
MIN
TYP
200
160
0.25
0.1
60
80
100
100
350
280
22
10
12
70
56
-70
-66
-73
-56
0.05
0.32
0.03
0.04
2
4
5
4
-55
-65
100
120
35
30
15
MAX
UNITS
MHz
dB
MHz
MHz
V/µs
V/µs
ns
ns
dB
dBc
dBc
degrees
%
nV/√Hz
pA/√Hz
Ω
dB
dB
MHz
ns
ns
mV
4
_______________________________________________________________________________________
Single/Triple, Low-Glitch, 250MHz, Current-
Feedback Amplifiers with High-Speed Disable
AC ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX4189)
(V
CC
= +5V, V
EE
= -5V, V
IN
= 0,
DISABLE_
≥
3V, A
V
= +1V/V, R
F
= 1600Ω for R
L
= 1kΩ and R
F
= 1100Ω for R
L
= 150Ω; T
A
= +25°C,
unless otherwise noted.)
PARAMETER
Small-Signal -3dB Bandwidth
Peaking
Bandwidth for 0.1dB Flatness
Large-Signal -3dB Bandwidth
Slew Rate
Settling Time to 0.1%
Rise/Fall Time
Spurious-Free Dynamic Range
Second Harmonic Distortion
Third Harmonic Distortion
Differential Phase Error
Differential Gain Error
Input Noise Voltage Density
Input Noise Current Density
Output Impedance
Crosstalk
All Hostile Off Isolation
Gain Matching to 0.1dB
Amplifier Enable Time
Amplifier Disable Time
Disable/Enable Switching
Transient
t
ON
t
OFF
Delay from
DISABLE
to 90% of V
OUT
,
V
IN
= 0.5V
Delay from
DISABLE
to 10% of V
OUT
,
V
IN
= 0.5V
Positive transient
Negative transient
DP
DG
e
n
i
n
Z
OUT
SFDR
BW
0.1dB
BW
LS
SR
t
S
SYMBOL
BW
-3dB
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
V
OUT
= 2Vp-p
V
OUT
= 4V step,
R
L
= 150Ω
V
OUT
= 4V step
V
OUT
= 4V step
f
C
= 5MHz,
V
OUT
= 2Vp-p
f
C
= 5MHz,
V
OUT
= 2Vp-p
f
C
= 5MHz,
V
OUT
= 2Vp-p
NTSC
NTSC
f = 10kHz
f = 10kHz
f = 10MHz
f = 10MHz, input referred
f = 10MHz, input referred
Positive input
Negative input
Rise time
Fall time
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
R
L
= 1kΩ
R
L
= 150Ω
Positive slew
Negative slew
CONDITIONS
MIN
TYP
250
210
1.4
0.15
7
30
60
55
175
150
28
20
22
65
51
-65
-63
-70
-51
0.02
0.66
0.07
0.18
2
4
5
4
-57
-55
24
120
40
70
110
MAX
UNITS
MHz
dB
MHz
MHz
V/µs
V/µs
ns
ns
dB
dBc
dBc
degrees
%
nV/√Hz
pA/√Hz
Ω
dB
dB
MHz
ns
ns
mV
MAX4188/MAX4189/MAX4190
_______________________________________________________________________________________
5
消费电子
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
