Texas Instruments PGA2500 Digitally Controlled Microphone Preamp Data Sheet User Manual
Summary
Digitally controlled analog microphone preamplifier for high-performance audio ADCs. Gain range 10dB to 65dB in 1dB steps with unity gain option. Fully differential path with DC servo and common-mode servo. Zero-crossing detection, 4-wire serial control with daisy-chain support, and four programmable digital outputs. Operates on +/-5V. For professional audio and mixer engineers.
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 19 |
| File Size | 382.35 KB |
| Published | June 16, 2026 |
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Frequently Asked Questions
What is the gain range and step size of the PGA2500?
The gain range is 10dB through 65dB, adjustable in 1dB steps.
What power supply voltages are required?
It requires both +5V and −5V power supplies.
How is the device's gain controlled?
Gain is set via a simple four-wire serial control port interface using a 16-bit control word.
What package is the PGA2500 available in?
It is available in a small SSOP-28 package.