Digital-to-analog converter using a feedback element matching te

Details Digital-to-analog converter using a feedback element matching te Digital-to-analog converter using a feedback element matching te

1982-03-24

1985-10-22

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347CC, 340347M, H03K 1302

Patent

active

045491666

ABSTRACT:
The present invention is characterized that a digital-to-analog converter having ordinal accuracy and one or more current sources are combined and the output currents of the current sources are accurately controlled to have a predetermined relationship with regard to the reference current which is a full-scale value of the analog output current of DAC so that the output current of the current sources designated by bits added to the superior bit of the digital input signal depending on the number of the current sources and the analog output current in response to the digital input signal with the added bits are added to produce an analog signal corresponding to the digital input signal.

REFERENCES:
patent: 3217147 (1965-11-01), Chapman, Jr.
patent: 4369432 (1983-01-01), Mikami

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