EL4421C 22C 41C 42C 43C 44C
EL4421C 22C 41C 42C 43C 44C
Multiplexed-Input Video Amplifiers
Features
Unity or
a
2-gain bandwidth of
80 MHz
70 dB off-channel isolation at
4 MHz
Directly drives high-impedance
or 75X loads
02% and 02 differential gain
and phase errors
8 ns switching time
k
100 mV switching glitch
0 2% loaded gain error
Compatible with
g
3V to
g
15V
supplies
160 mW maximum dissipation at
g
5V supplies
General Description
The EL44XX family of video multiplexed-amplifiers offers a
very quick 8 ns switching time and low glitch along with very
low video distortion The amplifiers have good gain accuracy
even when driving low-impedance loads To save power the am-
plifiers do not require heavy loading to remain stable
The EL4421 and EL4422 are two-input multiplexed amplifiers
The -inputs of the input stages are wired together and the de-
vice can be used as a pin-compatible upgrade from the
MAX453
The EL4441 and EL4442 have four inputs also with common
feedback These may be used as upgrades of the MAX454
The EL4443 and EL4444 are also 4-input multiplexed amplifi-
ers but both positive and negative inputs are wired separately
A wide variety of gain- and phase-switching circuits can be built
using independent feedback paths for each channel
The EL4421 EL4441 and EL4443 are internally compensated
for unity-gain operation The EL4422 EL4442 and EL4444 are
compensated for gains of
a
2 or more especially useful for driv-
ing back-matched cables
The amplifiers have an operational temperature of
b
40 C to
a
85 C and are packaged in plastic 8- and 14-pin DIP and 8- and
14-pin SO
The EL44XX multiplexed-amplifier family is fabricated with
Elantec’s proprietary complementary bipolar process which
gives excellent signal symmetry and is very rugged
Ordering Information
Part No
Temp Range
C to
C to
C to
C to
C to
C to
C to
C to
C to
C to
C to
C to
a
85
a
85
a
85
a
85
a
85
a
85
a
85
a
85
a
85
a
85
a
85
a
85
Package
Outline
MDP0031
MDP0027
MDP0031
MDP0027
EL4421CN
b
40
EL4421CS
b
40
EL4422CN
b
40
EL4422CS
b
40
EL4441CN
b
40
EL4441CS
b
40
EL4442CN
b
40
EL4442CS
b
40
EL4443CN
b
40
EL4443CS
b
40
EL4444CN
b
40
EL4444CS
b
40
C 8-Pin PDIP
C 8-Pin SO
C 8-Pin PDIP
C 8-Pin SO
C 14-Pin PDIP MDP0031
C 14-Pin SO
MDP0027
C 14-Pin PDIP MDP0031
C 14-Pin SO
MDP0027
C 14-Pin PDIP MDP0031
C 14-Pin SO
MDP0027
C 14-Pin PDIP MDP0031
C 14-Pin SO
MDP0027
Connection Diagrams
EL4421 EL4422
EL4441 EL4442
EL4443 EL4444
January 1996 Rev C
4421 – 1
4421 – 2
4421 – 3
Manufactured under U S Patent No 5 352 987
Note
All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication however this data sheet cannot be a ‘‘controlled document’’ Current revisions if any to these
specifications are maintained at the factory and are available upon your request We recommend checking the revision level before finalization of your design documentation
1994 Elantec Inc
ELANTEC [ ELANTEC SEMICONDUCTOR ]
