Successive approximation analog-to-digital converter

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

1984-03-07

1987-03-03

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

340347DA, H03M 146

Patent

active

046479031

ABSTRACT:
In order to reduce the numbers of resistors and associated switches required in a successive approximation type a-d converter, a resistor-ladder of the d-a converter utilizes a first group of resistors (resistance R) and a second group of resistors each having a resistance equal to R/2.sup.L wherein L is the number of lower bits of the digital output. The second group of resistors enables the generation of variable comparison reference signals in response to the output of a successive approximation register.

REFERENCES:
patent: 3183360 (1965-05-01), Van Santen
patent: 4198622 (1980-04-01), Connolly

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