Analog-digital converter with advanced scheduling

Details Analog-digital converter with advanced scheduling Analog-digital converter with advanced scheduling

2006-12-26

2006-12-26

Barnie, Rexford (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S122000

Reexamination Certificate

active

07154426

ABSTRACT:
A first amplifier circuit samples and holds an input analog signal and outputs the same to a subtracting circuit. An AD converter circuit converts the input analog signal into a digital value so as to retrieve a predetermined number of bits. A DA converter circuit converts the digital value derived from conversion by the AD converter circuit into an analog value. A subtracter circuit subtracts an output analog signal from the DA converter circuit from the analog signal input via a first switch or the first amplifier circuit. A second amplifier circuit amplifies an output analog signal from the subtracter circuit by a gain of 2 and outputs the amplified signal. An input switching circuit controls the order of inputs, i.e. the input analog signal and a reference voltage, to voltage comparison elements constituting the Ad converter circuit.

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patent: 4-26229 (1992-01-01), None
patent: WO 2004054111 (2004-06-01), None

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