Digitizer and related charge pump circuit

Details Digitizer and related charge pump circuit Digitizer and related charge pump circuit

2007-07-17

2007-07-17

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Converter calibration or testing

C341S118000, C327S536000

Reexamination Certificate

active

11419506

ABSTRACT:
A digitizer and a related charge pump are provided. The charge pump includes an input coupled to the output of the comparator and receiving the output of the comparator as a control signal of charging and discharging, three current sources, and three switches, each of which having an end coupled to one of the current sources and another end selectively coupled to one of the differential outputs of the charge pump according to the output signal of the comparator. The charging and discharging currents of the charge pump are essentially identical. Hence there is no need to adopt calibration circuit for calibrating the PN current mismatch.

REFERENCES:
patent: 4533863 (1985-08-01), Luhn et al.
patent: 5974088 (1999-10-01), Chang
patent: 6124741 (2000-09-01), Arcus
patent: 6525684 (2003-02-01), Tsujikawa
patent: 6847251 (2005-01-01), Kao
patent: 6850102 (2005-02-01), Hsu et al.
patent: 6933790 (2005-08-01), Kiyose et al.
patent: 7106238 (2006-09-01), Chiang

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