Successive approximation ad converter having pulse noise...

Details Successive approximation ad converter having pulse noise... Successive approximation ad converter having pulse noise...

2006-10-31

2006-10-31

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07129882

ABSTRACT:
A successive approximation AD converter. A voltage comparator receives an analog input signal and a reference voltage. A successive approximation register receives the voltage comparator output, and a DA converter, connected to the successive approximation register, provides another analog signal to the voltage comparator. The voltage comparator includes differential amplifiers and an output amplifier connected in series via capacitance pairs, a first switch connecting the analog input signal to the first differential amplifier, a second switch connecting the first switch and the sampling capacitor to the reference voltage supply section, and a third switch connecting the first switch and the first differential amplifier to the reference voltage. When the input analog signal is sampled, the first switch is switched OFF, and the second and third switches are switched ON. When a voltage comparison is executed, the first switch is switched ON, and the second and third switches are switched OFF.

REFERENCES:
patent: 3810031 (1974-05-01), Poujois
patent: 6252454 (2001-06-01), Thompson et al.
patent: 6653967 (2003-11-01), Hamashita
patent: 6803870 (2004-10-01), Kuttner
patent: 6867723 (2005-03-01), Tachibana et al.
patent: 2001/0048344 (2001-12-01), Isken et al.
patent: 61-126823 (1986-06-01), None
patent: 63-253726 (1988-10-01), None
patent: 2001-292053 (2001-10-01), None
David A. Hodges, et al., “Potential of MOS Technologies for Analog Integrated Circuits”, IEEE Journal of Solid-State Circuits, vol. SC-13, No. 3, Jun. 1978.

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