Subranging analog-to-digital converter

Details Subranging analog-to-digital converter Subranging analog-to-digital converter

H - Electricity

03

M

354/70, 354/82

H03M 1/14 (2006.01) H03M 1/00 (2006.01)

Patent

CA 1269459

ABSTRACT OF THE DISCLOSURE A subranging analog-to-digital converter is disclosed. A coarse analog-to-digital converter has an analog input terminal coupled to a source of analog signal, a digital output terminal, and a range indication output terminal. First and second fine analog-to-digital converters each have an analog input terminal coupled to the analog signal source, a range selection input terminal coupled to the range indication output terminal, and a digital output terminal. A combining circuit has input terminals coupled to the digital output terminals of the coarse and first and second fine analog-to-digital converters. The coarse analog-to-digital converter operates on every clock cycle, and the fine analog-to-digital converters operate alternately on every other clock cycle to produce a sequence of digital samples representing the analog signal, one for each clock cycle.

536180

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