1

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FN7157

EL4083

Current Mode Four Quadrant Multiplier

The EL4083 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 extend

the usable gain control range at high frequencies. The bias

current is programmable to accommodate the voltage and

power dissipation constraints of the package and available

systems supplies.

The devices can implement all the classic four quadrant

multiplier applications and are uniquely well suited to gain

control and signal summing of broadband signals.

Pinout

EL4083

8-PIN PDIP, SO

TOP VIEW

Features

• Novel current mode design

- Virtual ground current summing inputs

- Differential ground referenced current outputs

• High speed (both inputs)

- 200MHz bandwidth

- 12ns 1% settling time

• Low distortion

- THD < 0.03% @ 1MHz

- THD < 0.1% @ 10MHz

- 100dB dynamic range

- 10Hz to 20kHz

- 73dB dynamic range

- 10Hz to 10MHz

• Wide supply conditions

- ±5 to ±15V operation

- Programmable bias current

• 0.2dB gain tolerance to 25MHz

Features

• 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

Ordering Information

PART

NUMBER

TEMP.

RANGE

PACKAGE

PKG. NO.

EL4083CN

-40°C to +85°C

8-Pin PDIP

MDP0031

EL4083CS

-40°C to +85°C

8-Pin SO

MDP0027

Manufactured under U.S. Patent No. 5,389,840

Data Sheet

December 1995, Rev. B

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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.

All other trademarks mentioned are the property of their respective owners.