PGA281AIPW

The Texas Instruments PGA281AIPW is a high-precision, zero-drift, high-voltage programmable gain instrumentation amplifier designed for demanding applications. It utilizes proprietary autozeroing techniques to achieve low offset voltage, near-zero offset and gain drift, excellent linearity, and minimal 1/f noise.

This amplifier operates with a supply voltage range of 10 V to 36 V and features a differential input and output. Key electrical specifications include a typical input offset drift of 0.03 µV/°C, a noise at 1 kHz of 0.00000002 V/√Hz, and a bandwidth at Acl of 6 MHz. The gain can be digitally controlled, with a maximum gain of 42 dB and binary gain steps from 128 V/V down to 1/8 V/V.

The PGA281AIPW offers excellent performance characteristics such as a typical offset voltage of 5 µV at G = 128, near-zero gain drift of 0.5 ppm/°C, and excellent linearity of 1.5 ppm. It also boasts a high common-mode rejection ratio (CMRR) of 140 dB and high input impedance.

Packaged in a TSSOP-16, this device is suitable for surface mount applications. Its operating temperature range is -40°C to 125°C, making it robust for various environmental conditions. The amplifier includes features like EMI filtering and overload detection.