TLK11125

January 1995

LM2418 Triple 30 MHz CRT Driver

General Description

The LM2418 contains three large signal voltage amplifiers

designed to directly drive CRT cathodes for VGA Color

achieved with a 90V power supply The nominal voltage

between amplifiers

Packaging is the industry standard molded 11 lead TO-220

The heatsink tab is isolated and may be grounded to im-

prove RFI shielding and simplify assembly

Features

Y

50 Vpp output at 30 MHz drives CRT directly

Y

Risefall time typically 12 ns with 8 pF load

Y

65V output swing capability

Y

Optimized output stage for low crossover distortion

Y

Gain matching of 1 dB

Y

Y

Includes oscillation supression resistors

Applications

Y

CRT driver for RGB monitors

Y

High voltage amplifiers

Schematic and Connection Diagram

(One Section)

TLK11125 – 1

FIGURE 1

TLK11125 – 2

Top View

Order Number LM2418T

See NS Package Number TA11B

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A