A-D converter

Details A-D converter A-D converter

1998-07-08

2000-08-08

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

H03M 138

Patent

active

061008370

ABSTRACT:
A chopper compare circuit of an A-D converter implemented through a semiconductor integrated circuit is provided with a series-connected body of a plurality of MOS capacitors to which the voltage of an analog signal and a reference voltage are alternately applied. A-D conversion errors resulting from change of the capacitances of the MOS capacitors depending on voltages between both electrodes thereof are reduced. A MOS capacitor is connected in parallel with or disconnected from a MOS capacitor, in response to a voltage across electrodes of a MOS capacitor.

REFERENCES:
patent: 5870052 (1999-02-01), Dedic et al.
patent: 6020841 (1999-02-01), Susak

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