描述 Description

General Description
The LM381/LM381A is a dual preamplifier for the amplification of low level signals in applications requiring optimum noise performance. Each of the two amplifiers is completely independent, with individual internal power supply decoupler-regulator, providing 120 dB supply rejection and 60 dB
channel separation. Other outstanding features include high gain (112 dB), large output voltage swing (VCCb2V) p-p, 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. 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.

特性 Features

Low noise D 0.5mV total input noise
High gain D 112 dB open loop
Single supply operation
Wide supply range 9V± 40V
Power supply rejection D 120 dB
Large output voltage swing (VCCb2V)p-p
Wide bandwidth 15 MHz unity gain
Power bandwidth 75 kHz, 20 Vp-p
Internally compensated
Short circuit protected