Switched capacitor circuit with reduced leakage current

Details Switched capacitor circuit with reduced leakage current Switched capacitor circuit with reduced leakage current

2009-05-20

2010-12-07

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

C327S094000, C327S337000, C330S009000

Reexamination Certificate

active

07847625

ABSTRACT:
Provided is a switched capacitor circuit which prevents leakage current by equalizing voltages at nodes where leakage current tends to flow in a sampling mode, and prevents errors in an output signal by minimizing voltage drop caused by leakage current in an integrating mode.

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patent: 7564273 (2009-07-01), Guyton et al.
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patent: 11-234088 (1999-08-01), None
patent: 2005-5620 (2005-01-01), None
Behzad Razavi, “Design of Analog CMOS Integrated Circuits,” McGraw-Hill, 2000, pp. 439-442.
Hiroshi Kawaguchi et al., “A Super Cut-Off CMOS (SCCMOS) Scheme for 0.5-V Supply Voltage with Picoampere Stand-By Current,” IEEE Journal of Solid-State Circuits, Oct. 2000, pp. 1498-1501, vol. 35, No. 10.
Koichi Ishida et al., “Managing Subthreshold Leakage in Charge-Based Analog Circuits With Low-VTHTransistors by Analog T-Switch (AT-Switch) and Super Cut-off CMOS (SCCMOS),” IEEE Journal of Solid-State Circuits, Apr. 2006, pp. 859-867, vol. 41, No. 4, Apr. 2006.

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