Monolithic integrated circuit for a digital-to-analog converter

Details Monolithic integrated circuit for a digital-to-analog converter Monolithic integrated circuit for a digital-to-analog converter

1980-03-06

1982-05-25

Punter, William H.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307297, 340347DA, H03K 1302

Patent

active

043318924

ABSTRACT:
A monolithic integrated digital-to-analog converter is provided wherein the resistors are replaced by insulated-gate field-effect transistors thus avoiding any detrimental effects of variation between supposedly identical components. The equivalent resistance values of the insulated-gate field-effect transistors are determined by a fixed ratio of channel width to channel length.

REFERENCES:
patent: 3223993 (1965-12-01), Dahlberg, Jr.
patent: 3241133 (1966-03-01), Herzl
patent: 3940760 (1976-02-01), Brokaw
patent: 4267550 (1981-05-01), Cecil
Reiner, R. "Mos-Integrierbare Digital-Analog-Wandler" Funk-Technik, 30, #8, 1975, pp. 217-219.

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