Linear/companding A/D converter

Details Linear/companding A/D converter Linear/companding A/D converter

1993-10-18

1994-11-29

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341164, H03M 112

Patent

active

053694074

ABSTRACT:
A multi-mode analog to digital converter is described for converting an analog input into a digital value according to a linear or a companding transfer function. The converter comprises a comparator, a successive approximation register and a charge redistribution device. The comparator compares the input voltage and a generated voltage. The successive approximation register generates a provisional binary word responsive to the output of the comparator. The charge redistribution device generates the generated voltage according to the provisional binary word and to a selected transfer function. The transfer function may be selected from the group consisting of linear and companding.

REFERENCES:
patent: 4404544 (1983-09-01), Dwarakanath
patent: 4641130 (1987-02-01), Mastroianni
patent: 4799042 (1989-01-01), Confalonieri et al.
patent: 4812817 (1989-03-01), Bernard
patent: 4831381 (1989-05-01), Hester
patent: 4982194 (1991-01-01), Bacrania
patent: 5006854 (1991-04-01), White et al.

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