Digital-to-analog converter employing a common trigger and refer

Details Digital-to-analog converter employing a common trigger and refer Digital-to-analog converter employing a common trigger and refer

1993-11-19

1995-10-03

Hoff, Marc S.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341150, H03M 182

Patent

active

054555817

ABSTRACT:
The D/A converter comprises: a digital counter receiving a reference clock pluses and a reference voltage as a start signal so as to output a stop signal when the digital counter counts the reference clock pulses until a predetermined number; and a number is reached, and an RC circuit having a resister and a capacitor receiving the reference voltage so as to be charged by a predetermined time constant until the stop signal is inputted to the RC circuit, whereby the RC circuit is charged up to a voltage corresponding to a time distance between the start signal and the stop signal.

REFERENCES:
patent: 3823396 (1974-07-01), Lode
patent: 4837573 (1989-06-01), Brooks
patent: 4958159 (1990-09-01), Wyatt
patent: 4973978 (1990-11-01), Jordan
Garrod, "Integrated Circuits", The Electrical Engineering Handbook, pp. 771-783, Richard C. Dorf, Editor-in-Chief, 1991.

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