Capacitor-based digital-to-analog converter for low voltage...

Details Capacitor-based digital-to-analog converter for low voltage... Capacitor-based digital-to-analog converter for low voltage...

2007-09-11

2007-09-11

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S150000

Reexamination Certificate

active

11457844

ABSTRACT:
A digital-to-analog converter (DAC) compatible with CMOS technology and operable in low voltage applications. An input capacitor stores a charge sample according to a digital input signal and a previous output analog signal. An analog output circuit has a feedback capacitor to share the charge sample and accordingly generate a current output analog signal from an output node. The output node may be continually connected to the input capacitor through a pass resistor.

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patent: 6369645 (2002-04-01), Takahashi
patent: 6583662 (2003-06-01), Lim
patent: 6838930 (2005-01-01), Huynh
patent: 7102557 (2006-09-01), Frith
patent: 7199743 (2007-04-01), Casper et al.

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