Dual-mode based digital background calibration of pipelined...

Details Dual-mode based digital background calibration of pipelined... Dual-mode based digital background calibration of pipelined...

2009-12-29

2011-10-04

Nguyen, Linh (Department: 2819)

Coded data generation or conversion

Converter calibration or testing

C341S118000, C341S121000, C341S155000, C341S161000

Reexamination Certificate

active

08031092

ABSTRACT:
Methods and systems are described relating to dual-mode based digital background calibration of pipelined ADCs, for gain variations and device mismatches. Errors caused by gain insufficiency, nonlinearity, and capacitor mismatches are corrected by operating one ADC in two circuit configurations. These two modes are so arranged that their digital outputs differ in the presence of gain nonlinearity, gain insufficiency, and capacitor mismatches. The output difference is measured by randomly choosing one of the two operation modes at each sampling clock and digitally correlating the resulting digital output sequence. The measured output difference, which represents ADC errors, is used to remove the errors.

REFERENCES:
patent: 5635937 (1997-06-01), Lim et al.
patent: 6323800 (2001-11-01), Chiang
patent: 6784814 (2004-08-01), Nair et al.
patent: 6967603 (2005-11-01), Lin
patent: 7187310 (2007-03-01), El-Sankary et al.
patent: 7663516 (2010-02-01), Chandra
patent: 7786910 (2010-08-01), Ali et al.
patent: 2002/0175843 (2002-11-01), Sonkusale et al.
patent: 2006/0208933 (2006-09-01), Chen et al.
patent: 2009/0243900 (2009-10-01), Kawahito

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