Pipeline type A/D converter apparatus provided with...

Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion

Reexamination Certificate

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C341S162000, C341S172000

Reexamination Certificate

active

07612700

ABSTRACT:
In a pipeline type A/D converter apparatus including A/D converter circuit parts connected in cascade with each other and A/D converting a sample hold signal in a pipeline form, each A/D converter circuit part includes a pre-A/D converter circuit for A/D converting an input signal into a digital signal, and a multiplying D/A converter circuit for D/A converting the digital signal into an analog control signal, and D/A converting the input signal by sampling, holding and amplifying the input signal using a sampling capacitor based on the analog control signal. A precharge circuit precharges a sampling capacitor before sampling so as to attain a predetermined output value in accordance with a digital input to output characteristic substantially adapted to an input to output characteristic of each A/D converter circuit part that presents an output signal corresponding to the input signal to each A/D converter circuit part.

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patent: 6967610 (2005-11-01), Sutardja et al.
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patent: 7429946 (2008-09-01), Huang
patent: 7450050 (2008-11-01), Rezayee et al.
patent: 2003-158434 (2003-05-01), None
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P. Bogner et al., “A 14b 100MS/s Digitally Self-Calibrated Pipelined ADC in 0.13 μm CMOS”, ISSCC Digest of Technical Papers, pp. 224-225, Feb. 2006.

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