TW200633509A - Analog-to-digital conversion method, analog-to-digital converter, semiconductor device for detecting distribution of physical quantity, and electronic apparatus - Google Patents

Analog-to-digital conversion method, analog-to-digital converter, semiconductor device for detecting distribution of physical quantity, and electronic apparatus

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Publication number
TW200633509A
TW200633509A TW094138912A TW94138912A TW200633509A TW 200633509 A TW200633509 A TW 200633509A TW 094138912 A TW094138912 A TW 094138912A TW 94138912 A TW94138912 A TW 94138912A TW 200633509 A TW200633509 A TW 200633509A
Authority
TW
Taiwan
Prior art keywords
analog
signal
conversion method
semiconductor device
electronic apparatus
Prior art date
Application number
TW094138912A
Other languages
Chinese (zh)
Other versions
TWI286904B (en
Inventor
Yoshinori Muramatsu
Noriyuki Fukushima
Yoshikazu Nitta
Yukihiro Yasui
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of TW200633509A publication Critical patent/TW200633509A/en
Application granted granted Critical
Publication of TWI286904B publication Critical patent/TWI286904B/en

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Abstract

In an analog-to-digital conversion method for converting a difference signal component representing a difference between a reference component and a signal component in an analog signal to be processed into digital data, in a first process, a signal corresponding to one of the reference component and the signal component is compared with a reference signal for conversion into the digital data. Concurrently with the comparison, counting is performed in one of a down-count mode and an up-count mode, and a count value at a time of completion of the comparison is held. In a second process, a signal corresponding to the other one of the reference component and the signal component is compared with the reference signal. Concurrently with the comparison, counting is performed in the other one of the down-count mode and the up-count mode, and a count value at a time of completion of the comparison is held.
TW94138912A 2004-02-23 2005-11-07 Analog-to-digital conversion method, analog-to-digital converter, semiconductor device for detecting distribution of physical quantity, and electronic apparatus TWI286904B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004045942 2004-02-23
JP2004110866 2004-04-05
JP2004323432A JP4470700B2 (en) 2004-02-23 2004-11-08 AD conversion method, AD converter, semiconductor device for detecting physical quantity distribution, and electronic apparatus

Publications (2)

Publication Number Publication Date
TW200633509A true TW200633509A (en) 2006-09-16
TWI286904B TWI286904B (en) 2007-09-11

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Family Applications (1)

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TW94138912A TWI286904B (en) 2004-02-23 2005-11-07 Analog-to-digital conversion method, analog-to-digital converter, semiconductor device for detecting distribution of physical quantity, and electronic apparatus

Country Status (2)

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JP (1) JP4470700B2 (en)
TW (1) TWI286904B (en)

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Also Published As

Publication number Publication date
TWI286904B (en) 2007-09-11
JP2005323331A (en) 2005-11-17
JP4470700B2 (en) 2010-06-02

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