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JSSC 2012第5期Other0.35μm

329 nVrt Hz 606 dB THD Dual-Band Micro-Electrode Array Signal Acquisition IC Jin

设计了一种用于微电极阵列记录的双频带信号采集IC,具有低噪声和高线性度。
329 nV/√Hz, 606 dB THD, 0.35μm CMOS
双频带记录微电极阵列信号采集IC低噪声高线性度
连续时间前端设计抑制LFP频带噪声
离散时间后端设计实现良好线性度
全差分采集通道提高CMRR和PSRR
Abstract
The dual-band recording of the local- field p otential (LFP, 0.1–200 Hz) and the spike potential (SP, 200 Hz–10 kHz) is important for physiological studies at the cellular level. Recent study shows that the LFP signal plays importan tr o l e si nm o d - ulating many profound cellular mechanisms. Although various bio-signal acquisition circuit s have been reported over the years, few designs are applicable to capture both L FP and SP signals. To record both signals accurately, acquisition circuits