Abstract:This paper proposes a low power read-out integrated circuit (ROIC) for multiple sensors having a DC output signal. It comprises a chopper-stabilized instrumentation amplifier (CSIA) followed by a second-order incremental analog-to-digital converter (IADC). The CSIA has a dual-frequency path to effectively eliminate any 1/f noise and offset. A variable gain module (VGM) is also connected to the CSIA to improve its range of potential applications. A CMOS buffer amplifier followed by the CSIA is used to achieve t… Show more
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