1

®

FN7159

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

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EL4093

300MHz DC-Restored Video Amplifier

The EL4093 is a complete DC-

restored video amplifier subsystem,

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 amplifier. 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 -40°C to +85°C and is packaged

in plastic 16-pin DIP and 16-pin SOIC.

Pinout

Features

• High accuracy DC restoration for video

• Low supply current of 9.5mA typ.

• 300MHz bandwidth

• 1500V/µs slew rate

• 0.04% differential gain and 0.02° differential phase into

150

Ω for NTSC

• 1.5mV 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

Demo Board

A demo PCB is available for this product. Request “EL4093

Demo Board.”

EL4093

(16-PIN PDIP, SO)

TOP VIEW

Ordering Information

PART

NUMBER

TEMP. RANGE

PACKAGE

PKG. NO.

EL4093CN

-40°C to +85°C

16-Pin PDIP

MDP0031

EL4093CS

-40°C to +85°C

16-Pin SOIC

MDP0027

Data Sheet

January 1996, Rev B