EL4083C
EL4083C
Current Mode Four Quadrant Multiplier
Features
Novel current mode design
Virtual ground current summing
inputs
Differential ground referenced
current outputs
High speed (both inputs)
200 MHz bandwidth
12 ns 1% settling time
Low distortion
THD
k
0 03% 1 MHz
THD
k
0 1% 10 MHz
Low noise (R
L
e
50X)
100 dB dynamic range
10 Hz to 20 kHz
73 dB dynamic range
10 Hz to 10 MHz
Wide supply conditions
g
5 to
g
15V operation
Programmable bias current
0 2 dB gain tolerance to 25 MHz
General Description
The 4083C makes use of an Elantec fully complimentary oxide
isolated bipolar process to produce a patent pending current in
current out four quadrant multiplier Input and output signal
summing and direct interface to other current mode devices can
be accomplished by simple connection to reduce component
count and preserve bandwidth The selection of an appropriate
series resistor value allows an input to accept a voltage signal of
any size and optimize dynamic range The differential outputs
offer significant performance improvements which greatly ex-
tend the usable gain control range at high frequencies The bias
current is programmable to accommodate the voltage and pow-
er dissipation constraints of the package and available systems
supplies
The devices can implement all the classic four quadrant multi-
plier applications and are uniquely well suited to gain control
and signal summing of broadband signals
Connection Diagram
EL4083
8-Pin SO P DIP
Applications
Four quadrant multiplication
Gain control
Controlled signal summing and
multiplexing
HDTV video fading and
switching
Mixing modulating
demodulating (phase detection)
Frequency doubling
Division
Squaring
Square rooting
RMS and power measurement
Vector addition-RMS summing
CRT focus and geometry
correction
Polynomial function generation
AGC circuits
4083 – 1
Top View
December 1995 Rev B
Ordering Information
Part No
Temp Range
Package
Outline
EL4083CN
b
40 C to
a
85 C 8-Pin P-DIP MDP0031
EL4083CS
b
40 C to
a
85 C 8-Pin SO
MDP0027
Manufactured under U S Patent No 5 389 840
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
1993 Elantec Inc
ELANTEC [ ELANTEC SEMICONDUCTOR ]
