Title:
AD変換器
Document Type and Number:
Japanese Patent JP4234543
Kind Code:
B2
Abstract:
An AD converter includes a sample-&-hold circuit which samples and holds an input analog potential in a first period, and generates a signal indicative of a magnitude relation between the held input analog potential and a reference potential in a second period, a plurality of amplifiers connected in series which amplify an output of the sample-&-hold circuit, and a control circuit which controls operating timing of the amplifiers so as to make at least one of the amplifiers start operating in a middle of the first period.
Inventors:
Tachibana Dai
Tatsuo Kato
Hideo Nunokawa
Tatsuo Kato
Hideo Nunokawa
Application Number:
JP2003317299A
Publication Date:
March 04, 2009
Filing Date:
September 09, 2003
Export Citation:
Assignee:
Fujitsu Microelectronics Limited
International Classes:
H03M1/38; H03K5/08; H03M1/00; H03M1/46
Domestic Patent References:
| JP4220016A | ||||
| JP2000040964A | ||||
| JP4363917A | ||||
| JP9135170A | ||||
| JP4003520A |
Attorney, Agent or Firm:
Tadahiko Ito
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