Analog-to-digital converter

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

1977-03-23

1979-03-06

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 13175

Patent

active

041433661

ABSTRACT:
An analog-to-digital (A/D) converter which is capable of encoding each one of analog signal samples occurring at a high rate, such as 40 MHz (25 ns spacing), to eight digital output bits representing any one of 256 levels. Sixteen sixteen-level A/D converter sub-units each providing four binary output bits are connected in series across analog signal input terminals. A priority encoder and a multiplexer are responsive to the carry outputs of the A/D sub-units to produce four high-order digital output bits representing the rank of the sub-unit having a voltage range encompassing the voltage of an analog input signal. Gating means responsive to the four high-order output bits pass four low-order digital output bits from the one of the sixteen sub-units identified by the four high-order bits.

REFERENCES:
patent: 3737894 (1973-06-01), Poretti
patent: 3798637 (1974-03-01), Fruhauf
patent: 3935569 (1976-01-01), Marcel
patent: 4008468 (1977-02-01), Imhoff

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