基于电荷泵的开关电容增益级

2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS) Pub Date : 2012-09-05 DOI:10.1109/MWSCAS.2012.6292018

Alireza Nilchi, D. Johns

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引用次数: 1

摘要

提出了一种基于电容式电荷泵的低功率开关电容增益级。结果表明，CP增益级实现了与传统SC增益电路相同的输入参考热噪声，同时功耗显著降低。讨论了寄生电容对CP增益电路的影响。仿真结果证实了改进的功率/性能权衡的CP增益级比传统的方法提供。

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Charge-pump based switched-capacitor gain stage

A low-power switched-capacitor (SC) gain stage based on a capacitive charge-pump (CP) is proposed. It is shown that the CP gain stage achieves the same input-referred thermal noise as a conventional SC gain circuit, while consuming significantly lower power. The effect of parasitic capacitances on the CP gain circuit is discussed. Simulation results confirming the improved power/performance trade-off of the CP gain stage over the conventional approach are provided.

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2012 IEEE 55th International Midwest Symposium on Circuits and Systems (MWSCAS)

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