Analog-to-digital converter

Details Analog-to-digital converter Analog-to-digital converter

1982-12-17

1986-02-04

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 1302

Patent

active

045689105

ABSTRACT:
An analog-to-digital converter for converting an analog input signal to a digital output signal with m upper bits and n lower bits includes 2.sup.m+n -1 resistors establishing 2.sup.m+n reference voltages for comparison with an amplitude of the analog input signal, 2.sup.m -1 voltage comparing circuits for comparing the analog input signal with 2.sup.n step-by-step reference voltages, a first encoder for encoding the output signals of the 2.sup.m-1 voltage comparing circuits for generating m upper bits of the digital output signal, a matrix circuit having 2.sup.m (2.sup.n -1) voltage comparators for comparing the analog input signal with the remaining reference voltages of the 2.sup.m+n references voltages, the other voltage comparing circuits being supplied output signals of the matrix circuit and a second encoder for encoding output signals of the other voltage comparing circuits for generating n lower bits of the digital output signal.

REFERENCES:
patent: 4417233 (1983-11-01), Inoue

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