LM382N Dual Preamplifier IC

The LM382N Dual Preamplifier IC designed explicitly for the low-level signals amplifications in applications requiring optimum noise performance. In this dual pre-amplifier, each of the two amplifiers is completely independent, with individual internal power supply decoupler regulator. And it also provides 120 dB supply rejection and 60 dB channel separation. Moreover, this pre-amplifier IC also include high gain (100 dB), and wide power bandwidth (75 kHz, 20 Vp-p). The LM382 operates at a wide voltage range from a single supply of 9V to 40V. An onboard resistor matrix is provided on the chip allows the user to select a variety of closed-loop gain options and frequency response characteristics such as flat-band, NAB or RIAA equalization. The circuit comes in the 14 lead dual-inline package.

This Low Noise Audio Preamp IC designed as a versatile, high-performance current-feedback amplifier. It offers a wide range of application audio systems and is the perfect device for differential microphone preamplifier and bus summing applications. The LM382N Dual Preamplifier IC makes it possible to optimize noise and bandwidth over a wide range of gains, as well as optimizes the taper of gain vs. The most important function of a preamp is to amplify low-level signals to line level, i.e. the “standard” operating level of your recording gear. Microphone signals basically operate way below the nominal operating level, so large amount of gain required, usually at a range of 30-60 dB, sometimes even more.

APPLICATIONS