电路采用电容负反馈互导放大器(CTIA)及相关双取样(CDS)结构，有利于减小电路的噪声。

The adoption of capacitor feedback transimpedance amplifier (CTIA) and correlated double sampling (CDS) structure helps to reduce the noise of the circuit.

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锁定放大器和取样积分器都不能抑制与参考信号同频率的干扰。 本文提出了一种能抑制这种干扰的方法。

This paper describes a method of suppressing correlation jamming at the frequency of reference signal which cannot be suppressed by lock-in amplifier and Boxcar integrator.

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该电路的模拟部分包括电荷放大器、后级放大电器、相关双取样与采样保持电路、积分器、单位增益缓冲器。

The analog part includes self-test circuit, charge amplifier, post-amplifier circuit, CDS and S/H circuit, integrator, unity gain buffer.

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