为提高生物微传感器的探测灵敏度,设计了一种低噪声的生物微传感器CMOS读出电路,提出了一种新型的相关双采样(CDS)电路.对读出电路的噪声进行抑制.在0.6μm CMOS工艺下,用Spectre仿真器对该电路进行了模拟,仿真结果表明,采用相关双采样的CMOS读出电路使传感器的输入输出转换具有良好的线性关系.%A CMOS readout circuit for biosensor that used a new Correlated Double Sampling(CDS)circuit was designed.The CDS circuit makes biosensor possible tO obtain high sensitivity and low noise features.Simulation was carried out on a 0.6μm CMOS process by Spectre simulator.The simulation results showed that a good linear relation between input and output of the biosensor has been obtained by using CMOS readout circuit based on CDS.
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