Digital to analog converter system employing plural digital to a

Details Digital to analog converter system employing plural digital to a Digital to analog converter system employing plural digital to a

1992-01-14

1993-05-18

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341141, 341118, H03M 178

Patent

active

052124843

ABSTRACT:
A digital to analog conversion system includes two digital to analog converters, a selector circuit and a control circuit. Each digital to analog converter generates an output signal having a voltage level which can be varied in response to a control signal. The selector circuit is connected to the digital to analog converters for selectively coupling as a system output signal the output signal from one of the digital to analog converters in response to a selection signal. The control circuit generates control signals for controlling the digital to analog converters and the selection signal for controlling the selector circuit to, during a series of iterations, effectively control alternate ones of the digital to analog converters to generate output signals of voltage levels which are adjusted in relation to the voltage level of the system output signal and enable the selector circuit to couple the adjusted output signal as the system output signal, to thereby enable the system output signal to approach a selected voltage level.

REFERENCES:
patent: 4843394 (1989-06-01), Linz et al.
patent: 4958155 (1990-09-01), Gulczynski
patent: 4972188 (1990-11-01), Clement et al.
patent: 5043731 (1991-08-01), Nishimura
patent: 5118975 (1992-06-01), Hillis et al.
patent: 5119095 (1992-06-01), Asazawa

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