The STPAFE966x family of ASIC amplifiers provide input offset voltage correction for very low offset and drift through the use of patented fast step response chopper stabilized techniques. This method constantly measures and compensates the input offset, eliminating drift over time and temperature and the effect of 1/f noise. This design break through allows the combination of a gain bandwidth product of 350kHz and a high slew rate of 0.22V/μs, while only drawing 30μA supply current.

These devices are unity gain stable and have good Power Supply Rejection Ratio (PSRR) and Common Mode Rejection Ratio (CMRR). The STPAFE966x series are perfectly suited for thermopile sensor applications that require precision amplification of low level signals, in which error sources cannot be tolerated, even in which high bandwidth and fast transition are needed. The rail-to-rail input and output swings make both high-side and low-side sensing easy.

The STPAFE966x series can operate with a single supply voltage as low as 1.8V for 2-cell battery applications. The STPAFE966x ASIC-amps have enhanced EMI protection to minimize any electromagnetic interference from external sources, and have high electro-static discharge (ESD) protection (5-kVHBM). All models are specified over the extended industrial temperature range of−40℃ to +125℃.