Analog-to-digital converter circuit and signal processing...

Details Analog-to-digital converter circuit and signal processing... Analog-to-digital converter circuit and signal processing...

2007-03-29

2008-11-25

Jeanglaude, Jean B (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07456776

ABSTRACT:
In an analog-to-digital converter circuit of pipeline type configured by cascade-connecting a plurality of analog-to-digital conversion blocks, at least analog-to-digital conversion blocks at an initial stage excluding an analog-to-digital conversion block at a final stage have each a function as an amplifier and are switched by a control signal inputted externally so that the analog-to-digital conversion blocks each operates as the amplifier. When the analog-to-digital conversion blocks each having the function as the amplifier are each operated as the amplifier by the control signal, a digital signal is generated by using data outputted from an analog-to-digital conversion block provided subsequent to the analog-to-digital conversion blocks operating as the amplifiers.

REFERENCES:
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patent: 6489904 (2002-12-01), Hisano
patent: 7002506 (2006-02-01), Tadeparthy et al.
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Yoshihisa Fujimoto, et al., “A Switched-Capacitor Variable Gain Amplifier for CCD Imaged Sensor Interface System,” Proceedings of the 28thEuropean Solid-State Circuit Conference, Sep. 2002, ESSCIRC 2002, pp. 363-366.

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