Digital to analog converter

Details Digital to analog converter Digital to analog converter

1989-04-27

1991-10-08

Pellinen, A. D.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341118, 341135, 341136, H03M 166, H03M 106, H03M 176

Patent

active

050558447

ABSTRACT:
A digital-to-analog converter which has an input terminal for receiving first and second digital signals and a reference voltage generating circuit for establishing a reference voltage at a control terminal of a reference voltage transistor. The digital-to-analog converter also includes first and second current sources which each include a current source transistor having a control terminal connected to the control terminal of the voltage reference transistor. A first switch connected in the conduction path of the first current source transistor selectively allows current to flow to the output terminal and a second switch connected in the conduction path of the second current source transistor selectively allows a second current to flow to the output terminal.

REFERENCES:
patent: 4331892 (1982-05-01), Miskin et al.
patent: 4827260 (1989-05-01), Sugawa et al.

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