TLH7753

November 1994

LM102LM302 Voltage Followers

General Description

The LM102 series are high-gain operational amplifiers de-

signed specifically for unity-gain voltage follower applica-

tions Built on a single silicon chip the devices incorporate

advanced processing techniques to obtain very low input

current and high input impedance Further the input transis-

tors are operated at zero collector-base voltage to virtually

eliminate high temperature leakage currents It can there-

fore be operated in a temperature stabilized component

oven to get extremely low input currents and low offset volt-

age drift

The LM102 which is designed to operate with supply volt-

capacitance as well as excellent small signal and large sig-

nal frequency responseall of which minimize high fre-

quency gain error Because of the low wiring capacitances

inherent in monolithic construction this fast operation can

be realized without increasing power consumption

Features

Y

Fast slewing

10V ms

Y

Low input current

10 nA (max)

Y

High input resistance

10000 MX

Y

No external frequency compensation required

Y

Simple offset balancing with optional 1 kX

potentiometer

Y

Plug-in replacement for both the LM101 and LM709 in

voltage follower applications

Schematic Diagram

TLH7753 – 1

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A