Digital-to-analog and analog-to-digital converters

Details Digital-to-analog and analog-to-digital converters Digital-to-analog and analog-to-digital converters

1990-12-18

1992-05-05

Logan, Sharon D.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341145, 341154, 341159, 341118, H03M 168, H03M 178, H03M 106, H03M 114

Patent

active

051112051

ABSTRACT:
An architecture for a digital-to-analog converter or an analog-to-digital converter comprises a segmented voltage divider comprising a first resistive voltage divider providing a multiplicity of equal selectable voltage segments any one of which may be coupled directly across a second resistive voltage divider. The loading of the first resistive voltage divider by the second voltage divider is compensated by means of a controlled current source which responds to one of the voltage segments to provide a current which may be coupled by way of current mirrors in parallel with the second voltage divider.

REFERENCES:
patent: 3597761 (1971-08-01), Fraschilla
patent: 4008468 (1977-02-01), Imhoff et al.
patent: 4099173 (1978-07-01), Zeskind et al.
patent: 4353059 (1982-10-01), Vaitkus
patent: 4491825 (1985-01-01), Tuthill

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