LM387A

Supply Voltage
LM387                                                        +30V
LM387A                                                      +40V
Power Dissipation (Note 1)                        1.5W
Operating Temperature Range         0to+70
Storage Temperature Range       -65to+150
Lead Temperature (Soldering, 10 sec.)     260

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 (VCC b 2V)p-p, and wide power bandwidth (75 kHz, 20 Vp-p). The LM387A is a selectedversion 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