PGA2505 Microphone Preamplifiers

Texas Instruments PGA2505 Microphone Preamplifiers are designed for use as a front-end for high-performance audio analog-to-digital converters (ADCs). The TI PGA2505 analog microphone preamplifier features low noise, a wide dynamic range, a differential signal path, and an on-chip dc servo loop that minimizes dc offset. The TI PGA2505 features a gain range of 9dB through 60dB (3dB/step), along with a unity gain setting. The wide gain range allows this TI digitally controlled microphone preamplifier to be used with a variety of microphones.