EL4451C

Wideband Variable-Gain Amplifier Gain of 2

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

Features

 Complete variable-gain amplifier

with output amplifier requires

no extra components

 Excellent linearity of 02%

 70 MHz signal bandwidth

supplies

 All inputs are differential

 400V ms slew rate

4 MHz

Applications

 Leveling of varying inputs

 Variable filters

 Fading

 Text insertion into video

Ordering Information

Part No

Temp Range

Package

Outline

MDP0031

14-Lead SO

MDP0027

General Description

The EL4451C is a complete variable gain circuit It offers wide

bandwidth and excellent linearity while including a powerful

output voltage amplifier drawing modest supply current

processing AC characteristics do not change appreciably over

a

85 C and is packaged in plastic 14-pin DIP and 14-lead SO

The EL4451C is fabricated with Elantec’s proprietary comple-

mentary bipolar process which provides excellent signal sym-

metry and is free from latch up

Connection Diagram

4451-1