Analogue, Mixed Signal, LSI


Zero-drift amplifier

11 May 2011 Analogue, Mixed Signal, LSI

Analog Devices’ ADA4528 zero-drift op amp is designed for instrumentation and medical applications that require precision over time and temperature without system calibration. Its design achieves ultra-low integrated voltage noise of 99 nVp-p over 0,1 Hz–10 Hz to improve system SNR (signal-to-noise ratio) and lower the noise floor, enabling 24-bit resolution over 150 kHz in A/D converters while improving system accuracy. The 5,3 nV/rtHz voltage noise density enables the device’s use in broadband applications such as piezoelectric transducers and precision data acquisition systems. The ADA4528 boasts 140 dB gain, CMRR of 135 dB and a 130 dB PSRR.



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