Programmable digital to analog converter

Details Programmable digital to analog converter Programmable digital to analog converter

1994-03-04

1995-04-25

Pelllinen, A. D.

Electrical transmission or interconnection systems

Plural load circuit systems

Plural sources of supply

307115, 307125, 307 24, 327525, H01H 3776

Patent

active

054101867

ABSTRACT:
By providing data to a selection switch via a multiplexor so it can be programmed to supply either a current programmably controlled by a shift register or a current fixed by a fused resistor. Selected signals coupled to the multiplexor control the selection of either the resistor or the shift register thus, providing an improved current selection device which is capable of automatically selecting and programming the current supplied to circuits such as digital to analog converters.

REFERENCES:
patent: 3544994 (1970-12-01), Hanson et al.
patent: 4409683 (1983-10-01), Woodward
patent: 4686384 (1987-08-01), Harvey et al.
patent: 4689550 (1987-08-01), Ujihara et al.
patent: 4799043 (1989-01-01), Ueda
patent: 4912339 (1990-03-01), Bechade et al.
patent: 5130574 (1992-07-01), Shen et al.

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