Topic       : Chips 'n Chips
Author      : Michael Ruge
Version     : chips_x.hyp (01/05/2001)
Subject     : Dokumentation/Hardware
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   LM387 - Low Noise Dual Preamplifier







   General Description
   The LM387 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 an internal 
   power supply decoupler-regulator, providing 110 dB supply rejection
   and 60 dB channel separation. Other outstanding features include 
   high gain (104 dB), large output voltage swing (Vcc - 2V)p-p, and
   wide power bandwidth (75 kHz, 20 Vp-p). The LM387A is a selected
   version of the LM387 that has lower noise in a NAB tape circuit, 
   and can operate on a larger supply voltage. The LM387 operates 
   from a single supply across the wide range of 9V to 30V, the LM387A
   operates on a supply of 9V to 40V. The amplifiers are internally 
   compensated for gains greater than 10. The LN387, LM387A is avai-
   lable in an 8-lead dual-in-line package. 

   Features
   Low noise:  1.0 V total input noise
   High gain: 104 dB open loop
   Single supply operation
   Wide supply range LM387: 9 to 30V LM387A: 9 to 40V
   Power supply rejection: 110 dB
   Large output voltage swing (Vcx - 2V)p-p
   Wide bandwidth 15 MHz unity gain
   Power bandwidth 75 kHz, 20 Vp-p
   Internally compensated
   Short circuit protected
   Performance similar to LM381



























     Kapitel LM387 - Low Noise Dual Preamplifier, Seite 1