High-accuracy capacitor digital-to-analog converter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7123072
APP PUB NO 20020158786A1
SERIAL NO

10128663

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Abstract

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A capacitor digital-to-analog converter for N-bit digital-to-analog conversion comprises a converter capacitor network comprising 2.sup.N capacitors and 2.sup.N+1 MOS switches and an output buffer. The MOS switches are connected in a series chain at their respective source/drain, and each of the capacitors has a first electrode connected to a corresponding joining node between two consecutive MOS switches in the series chain and a second electrode connected together to a common node. The output buffer comprises a differential amplifier and an output amplifier, the differential amplifier has 2.sup.N discrete inputs each connected to a corresponding one of the first electrodes of the capacitors in the converter capacitor network.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HIMAX TECHNOLOGIES LIMITEDTAINAN COUNTY609
HIMAX OPTO-ELECTRONICS CORP.TAINAN HSIEN1

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bu, Linkai Tainan, TW 5 101
Chen, Chien-Pin Tainan, TW 17 47
Hsiao, Chuan-Cheng Jiayi, TW 15 65
Hung, Kun-Cheng Hsinchu, TW 9 80

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MEDIATEK INC. (1)
* 6271784 Capacitor-based digital-to-analog converter with continuous time output 28 1997
 
LUCENT TECHNOLOGIES INC. (1)
* 6081218 Five-level switched-capacitor DAC, method of operation thereof and sigma-delta converter employing the same 18 1998
 
INFOLINK SYSTEMS, INC. (1)
* 5767801 Linear type digital-to-analog converter and driving method therefor 7 1997
 
SILICON LABS CP, INC. (1)
* 6448917 DAC using current source driving main resistor string 25 2000
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 8830101 Single phase clock D/A converter with built-in data combiner 0 2013
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (1)
8542769 High output power digital TX 1 2011
* Cited By Examiner

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