The simplest and most effective way of minimizing the influence of charge injection, is illustrated. Unlike in sampled data circuits, where charge injection is inseparable from the sampling instant, in a chopper amplifier, a tiny time gap can be provided for the error charge pulses created by the input switches to die away before the signal is allowed to proceed to the output stage. Staggering the clock edges of the demodulator slightly behind those of the modulator provides such a guard time. A fully-integrated CMOS chopper amplifier in a single-poly, 1/spl mu/m CMOS technology, demonstrates the potential of the chopper scheme described.
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机译：给出了使电荷注入的影响最小化的最简单，最有效的方法。与采样数据电路中的电荷注入与采样时刻是分不开的不同，在斩波放大器中，可以为输入开关产生的误差电荷脉冲提供一个很小的时间间隔，以便在允许信号继续传播到信号之前消失。输出阶段。将解调器的时钟沿错开稍微落后于调制器的时钟沿可以提供这样的保护时间。采用单通道1 / spl mu / m CMOS技术的全集成式CMOS斩波放大器，证明了上述斩波方案的潜力。
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