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MAX442 Datasheet

140MHz / 2-Channel Video Multiplexer/Amplifier

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19-0016; Rev 1; 1/95
140MHz, 2-Channel
Video Multiplexer/Amplifier
_______________General Description
The MAX442 combines a 140MHz video amplifier with a
high-speed, 2-channel multiplexer in an 8-pin package.
With its 36ns switching time and low differential gain
(0.07%) and phase (0.09°) errors, it is ideal for broad-
cast-quality video applications. The device is designed
to drive both 50and 75cables, and can directly
drive a 75load to ±3V.
The MAX442 video amplifier is compensated for unity-
gain stability, and features a 140MHz bandwidth and a
250V/µs slew rate. The multiplexer’s low input capaci-
tance (4pF with the channel on or off) maximizes high-
speed performance, and a ground pin separating the
two input channels minimizes crosstalk and simplifies
board layout.
The MAX442 operates from ±5V supplies and typically
consumes 300mW. For applications that require more
input channels, see the data sheets for the MAX440 8-
channel mux/amp and the MAX441 4-channel mux/amp.
________________________Applications
Broadcast-Quality Video-Signal Multiplexing
Coaxial-Cable Drivers
Video Editing
Video Security Systems
Medical Imaging
High-Speed Signal Processing
____________________________Features
o 140MHz Unity-Gain Bandwidth
o 250V/µs Slew Rate
o 0.07%/0.09° Differential Gain/Phase Error
o 36ns Channel Switch Time
o No External Compensation Components
o 8-Pin DIP and SO Packages
o Directly Drives 50and 75Cables
______________Ordering Information
PART
TEMP. RANGE PIN-PACKAGE
MAX442CPA
0°C to +70°C
8 Plastic DIP
MAX442CSA
0°C to +70°C
8 SO
MAX442C/D
0°C to +70°C
Dice*
MAX442EPA
-40°C to +85°C
8 Plastic DIP
MAX442ESA
-40°C to +85°C
8 SO
*Dice are specified at TA = +25°C, DC parameters only.
__________Typical Operating Circuit
+5V
__________________Pin Configuration
TOP VIEW
IN0 1
GND 2
IN1 3
V- 4
MAX442
DIP/SO
8 A0
7 V+
6 VOUT
5 IN-
0.1µF
V+
MAX442
VIDEO
SIGNALS
IN
IN0
IN1
A0
GND V-
0.1µF
VOUT
IN-
75
75
CABLE
VIDEO
OUTPUT
270
75
270
CHANNEL
SELECT
-5V
________________________________________________________________ Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX442 Datasheet

140MHz / 2-Channel Video Multiplexer/Amplifier

No Preview Available !

140MHz, 2-Channel
Video Multiplexer/Amplifier
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V+ to V-).......................................................12V
Analog Input Voltage ............................(V+ + 0.3V) to (V- - 0.3V)
Digital Input Voltage .....................................-0.3V to (V+ + 0.3V)
Short-Circuit Current Duration ........................................1 minute
Input Current to Any Pin, Power On or Off........................±50mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C) .........................471mW
Operating Temperature Ranges
MAX442C_A........................................................0°C to +70°C
MAX442E_A .....................................................-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.
ELECTRICAL CHARACTERISTICS
(V+ = 5V, V- = -5V, RL = 150, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
DC PERFORMANCE
Input Voltage Range
Input Offset Voltage
(All Channels)
VIN
TA = +25°C
VOS MAX442C
MAX442E
Offset Matching
(VOS0–VOS1)
Input Bias Current
(Channel On)
Input Leakage Current
(Channel Off)
Input Resistance
(Channel On) (Note 1)
Input Capacitance
DC Output Resistance
Open-Loop Voltage Gain
Common-Mode Rejection Ratio
IB
ILKG
RIN
CIN
ROUT
AVOL
CMRR
TA = +25°C
TA = TMIN to TMAX
VIN = 0V
VIN = 0V
-2V VCM 2V
Channel on or off
AV = 0dB
AV = 6dB
RL = 75,
-2V VOUT +2V
-2V VIN +2V
Power-Supply Rejection Ratio
PSRR ±4.75V to ±5.25V
Output Voltage Swing
VOUT RL = 75
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
MIN TYP MAX UNITS
-2
±1.5
±1
±0.6
±0.5
0.5
0.2
50
46
46
46
54
54
±2.5
±2.0
2.0
4
25
50
60
50
80
±3.0
2
±7.0
±10
±12
±2.5
±5.0
±2
±5
±50
±1
V
mV
mV
µA
nA
µA
M
pF
m
dB
dB
dB
V
2 _______________________________________________________________________________________


Part Number MAX442
Description 140MHz / 2-Channel Video Multiplexer/Amplifier
Maker Maxim
Total Page 8 Pages
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