A Specific Architectures of CMOS Readout for Resonant-cavity-enhanced Devices

摘要

Application-specific architectures of CMOS readout circuit (ROIC) for the processing of signals from the resonant-cavity-enhanced (RCE) devices is proposed in this paper. The capacitor feedback transimpedance amplifier (CTIA) used for the amplifying small signals is implemented by means of a low-noise preamplifier and a feedback capacitor. The multiple analog channels of the chip are multiplexed to a single analog output. A suitable digital section provides self-resetting of each channel and trigger output. In this work, the main features of the circuit are presented along with the experimental results of its characterization.