Chip layout 137

Chip layout 137 - LM387 LM387A Low Noise Dual Preamplifier...

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TL/H/7845 LM387/LM387A Low Noise Dual Preamplifier March 1987 LM387/LM387A Low Noise Dual Preamplifier General Description The LM387 is a dual preamplifier for the amplification of low level signals in applications requiring optimum noise per- formance. Each of the two amplifiers is completely indepen- dent, with an internal power supply decoupler-regulator, pro- viding 110 dB supply rejection and 60 dB channel separa- tion. Other outstanding features include high gain (104 dB), large output voltage swing (V CC b 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 available in an 8-lead dual- in-line package. The LM387, LM387A is biased like the LM381. See AN-64 and AN-104. Features Y Low noise 1.0 m V total input noise Y High gain 104 dB open loop Y Single supply operation Y Wide supply range LM387 9 to 30V LM387A 9 to 40V Y Power supply rejection 110 dB Y Large output voltage swing (V CC b 2V)p-p Y Wide bandwidth 15 MHz unity gain Y Power bandwidth 75 kHz, 20 Vp-p Y Internally compensated Y Short circuit protected Y Performance similar to LM381
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This note was uploaded on 03/24/2009 for the course ECE 137a taught by Professor Staff during the Winter '08 term at UCSB.

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Chip layout 137 - LM387 LM387A Low Noise Dual Preamplifier...

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