Successive approximation analog to digital converter

Details Successive approximation analog to digital converter Successive approximation analog to digital converter

1988-12-20

1991-01-08

Shoop, Jr., William M.

Coded data generation or conversion

Converter compensation

341155, H03M 106

Patent

active

049839691

ABSTRACT:
To compensate for an offset of an A/D converter, a predetermined reference signal is supplied to the A/D converter. Based on the output signal of the A/D converter, the amount of the offset for this converter is acquired. A multiplexer outputs a compensation signal which serves to cancel out the acquired offset amount, the output of this multiplexer is subjected to analog addition to the analog input signal, and the offset of this A/D converter is compensated for at the input stage.

REFERENCES:
patent: 4228423 (1980-10-01), Schwerdt
patent: 4609906 (1986-09-01), Wiegel
patent: 4799041 (1989-01-01), Layton
Maxim 1987 Data Converter and Voltage References, pages from 1-47 through 1-58.
1976 IEEE International Solid State Circuits Conference, pp. 154-155.

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