EL4093C

300 MHz DC-Restored Video Amplifier

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

1995 Elantec Inc

Features

 High accuracy DC restoration for

video

 Low supply current of 95 mA

typ

 300 MHz bandwidth

 1500V ms slew rate

 004% differential gain and 002

differential phase into 150

X for

NTSC

 15 mV max restored DC offset

 Sample and hold amplifier with

fast enable and low leakage

 TTL-compatible HOLD logic

input

Applications

 Input amplifier in video

equipment

 Restoration amplifier in video

mixers

Ordering Information

Part No

Temp Range

Package

Outline

MDP0031

EL4093CS

Demo Board

A demo PCB is available for this

product

Request ‘‘EL4093 Demo

Board’’

General Description

The EL4093C is a complete DC-restored video amplifier subsys-

tem featuring low power consumption and high slew rate It

contains a current feedback amplifier and a sample and hold

amplifier designed to stabilize video performance When the

HOLD logic input is low the sample and hold may be used as a

general purpose op amp to null the DC offset of the video am-

plifier When the HOLD input goes high the sample and hold

stores the correction voltage on the hold capacitor to maintain

DC correction during the subsequent video scan line

The sample and hold amplifier contains a current output stage

that greatly simplifies its connection to the video amplifier Its

high output impedance also helps to preserve video linearity at

low supply voltages For ease of interfacing the HOLD input is

TTL-compatible This device has an operational temperature of

b

lead SOIC

Connection Diagram

44093 – 1