Flash A/D converter using capacitor arrays

Details Flash A/D converter using capacitor arrays Flash A/D converter using capacitor arrays

1987-05-01

1988-05-03

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

340347DA, H03M 112

Patent

active

047423307

ABSTRACT:
A flash ADC utilizes parallel weighted capacitive arrays and a resistor string to provide reference voltage intervals and an encoder for indicating the reference voltage interval wherein an input voltage lies. For an embodiment having N branches, the reference voltage intervals are subdivided into N sub-intervals and each succeeding clock cycle.

REFERENCES:
patent: 3594782 (1971-07-01), Carbrey
patent: 4200863 (1980-04-01), Hodges et al.
patent: 4399426 (1983-08-01), Tan
All-MOS Charge Redistribution Analog-To-Digital Conversion Techniques--Part 1, James L. McCreary, Dec. 1975.
High-Resolution A/D conversion in MOS/LSI, Bahram Fotouhi and David A. Hodges, Dec. 1979.

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