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 (VCC - 2V) 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.
Features
Low noise - 0.5 µV total input noise
High gain - 112 dB open loop
Single supply operation
Wide supply range 9V-40V
Power supply rejection - 120 dB
Large output voltage swing (VCC - 2V)p-p
Wide bandwidth 15 MHz unity gain
Power bandwidth 75 kHz, 20 Vp-p
Internally compensated
Short circuit protected
High gain - 112 dB open loop
Single supply operation
Wide supply range 9V-40V
Power supply rejection - 120 dB
Large output voltage swing (VCC - 2V)p-p
Wide bandwidth 15 MHz unity gain
Power bandwidth 75 kHz, 20 Vp-p
Internally compensated
Short circuit protected
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