Calibration method, A/D converter, and radio device

Details Calibration method, A/D converter, and radio device Calibration method, A/D converter, and radio device

2011-05-10

2011-05-10

Mai, Lam T (Department: 2819)

Coded data generation or conversion

Converter calibration or testing

C341S155000

Reexamination Certificate

active

07940200

ABSTRACT:
There is disclosed a calibration method for an A/D converter. The A/D converter includes a first amplifier to amplify first and second voltage signals, a second amplifier to amplify the first and second voltage signals amplified by the first amplifier, and a comparator to compare the first and second voltage signals amplified by the second amplifier. The calibration method performs short-circuiting input ports of the second amplifier, comparing the first and second voltage signals inputted to the comparator to obtain a first result, calibrating output voltage of the second amplifier according to the first result, short-circuiting input ports of the first amplifier, opening the short-circuited input ports of the second amplifier, comparing the first and second voltage signals inputted to the comparator to obtain a second result, and calibrating output voltage of the first amplifier according to the second result.

REFERENCES:
patent: 5621329 (1997-04-01), Tsao et al.
patent: 6252454 (2001-06-01), Thompson et al.
patent: 7046179 (2006-05-01), Taft et al.
patent: 7088278 (2006-08-01), Kurose et al.
patent: 7236118 (2007-06-01), Kurose et al.
patent: 7250895 (2007-07-01), Kurose et al.
patent: 7348839 (2008-03-01), Fahim et al.
patent: 7548590 (2009-06-01), Koller et al.
patent: 2008/0175132 (2008-07-01), Chou et al.
patent: 2009/0251572 (2009-10-01), Lin et al.
Kazutaka Honda et al., “A 14b Low-power Pipeline A/D Converter Using a Pre-charging Technique”, 2007 Symposium on VLSI Circuits Digest of Technical Papers, pp. 196-197.

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