Error cancelling comparator based switch capacitor circuit...

Details Error cancelling comparator based switch capacitor circuit... Error cancelling comparator based switch capacitor circuit...

2006-03-29

2008-11-11

Nguyen, Khai M (Department: 2819)

Coded data generation or conversion

Converter compensation

C341S150000, C341S172000

Reexamination Certificate

active

07450041

ABSTRACT:
An error canceling comparator based switch capacitor (CBSC) circuit cyclically works through multiple phases including a sampling phase and a transfer phase. During the sampling phase, an input voltage and also an error due to circuit non-idealities are sampled. During the transfer phase, the sampled input voltage is amplified by a fixed ratio and transferred to an output load, while the error is cancelled by reversing the polarity of connection for an internal capacitor within the CBSC circuit.

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Todd Sepke et al. “Comparator-Based Switched-Capacitor Circuits For Sealed CMOS Technologies.”, ISSCC 2006 / Session 12 / Nyquist ADCs / 12.4, Feb. 7, 2006, pp. 220-221, pp. 649. 2006 IEEE International Solid-State Circuits Conference.
Fiorenza, John K. et al.“Comparator-Based Switched-Capacitor Circuits for Scaled CMOS technologies”, IEEE Journal of Solid-State Circuits. vol. 41, No. 12, Dec. 2006, pp. 2658-2668.

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