LM381

更新时间： 2024-09-17 22:51:51

品牌	Logo	应用领域
美国国家半导体 - NSC		商用集成电路放大器光电二极管
页数	文件大小	规格书
6页	133K
描述
LM381/LM381A Low Noise Dual Preamplifier

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LM381 数据手册

July 1987

LM381/LM381A Low Noise Dual Preamplifier

General Description

Features

Low noise Ð 0.5 mV total input noise

The LM381/LM381A is a dual preamplifier for the amplifica-

tion of low level signals in applications requiring optimum

noise performance. Each of the two amplifiers is completely

independent, with individual internal power supply decou-

pler-regulator, providing 120 dB supply rejection and 60 dB

channel separation. Other outstanding features include high

High gain Ð 112 dB open loop

Single supply operation

Wide supply range 9V–40V

Power supply rejection Ð 120 dB

Large output voltage swing (V

2V)p-p

gain (112 dB), large output voltage swing (V

2V) p-p,

Wide bandwidth 15 MHz unity gain

Power bandwidth 75 kHz, 20 Vp-p

Internally compensated

and wide power bandwidth (75 kHz, 20 Vp-p). The LM381/

LM381A operates from a single supply across the wide

range of 9V to 40V.

Short circuit protected

Either differential input or single ended input configurations

may be selected. The amplifier is internally compensated

with the provision for additional external compensation for

narrow band applications. For additional information see

AN-64, AN-104.

Schematic Diagram

TL/H/7841–1

1995 National Semiconductor Corporation

TL/H/7841

RRD-B30M115/Printed in U. S. A.

12 3 4 5 6

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