Digital to analog converter

Details Digital to analog converter Digital to analog converter

1993-05-28

1995-02-28

Hoff, Marc S.

Coded data generation or conversion

Converter compensation

341144, H03M 106

Patent

active

053941462

ABSTRACT:
A D-A converter in which a phase deviation in load current is inhibited and a digital to analog conversion accuracy is enhanced. A data dividing block (7) is provided to switch a path depending upon a value of the most significant bit of an N bit digital signal (DATA) so as to conduct the D-A converting and the V-I converting based upon an (N-1)bit digital signal (DATA(N-1)) in either one of a first analog current output path consisting of a D-A converting block (11) and a V-I converting unit (210) and a second analog current output path consisting of a D-A converting block (12) and a V-I converting unit (220). Thus, since a large range of load current can be obtained and a phase deviation in the load current can be inhibited, a D-A conversion accuracy is enhanced.

REFERENCES:
patent: 4168528 (1979-09-01), Comer
patent: 4430642 (1984-02-01), Weigand et al.
patent: 4591832 (1986-05-01), Fling et al.
patent: 4677581 (1987-06-01), Malka et al.
patent: 4972188 (1990-11-01), Clement et al.
Elektronik, Aug. 17/19, 1988, Dipl. -Ing. K. D. Kroczek, "Multiplizierender 12-Bit-Dac Fur Zahlreiche Anwendungen", pp. 90-93.

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