LM6121/LM6221/LM6321

High Speed Buffer

General Description

These high speed unity gain buffers slew at 800 V/µs and

have a small signal bandwidth of 50 MHz while driving a 50

Ω

while driving large capacitive loads. The LM6121 family are

monolithic ICs which offer performance similar to the

LH0002 with the additional features of current limit and ther-

mal shutdown.

grated PNP) process which provides fast PNP transistors

that are true complements to the already fast NPN devices.

This advanced junction-isolated process delivers high speed

performance without the need for complex and expensive di-

electric isolation.

Features

n High slew rate:

800 V/µs

n Wide bandwidth:

50 MHz

n Slew rate and bandwidth 100% tested

n Peak output current:

n High input impedance:

5 M

Ω

n LH0002H pin compatible

n No oscillations with capacitive loads

n Current and thermal limiting

n Fully specified to drive 50

Ω lines

Applications

n Line Driving

n Radar

n Sonar

Simplified Schematic

DS009223-1

Numbers in ( ) are for 8-pin N DIP.

May 1998

© 1999 National Semiconductor Corporation

DS009223

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