Title:
アナログ-ディジタル変換器
Document Type and Number:
Japanese Patent JP4813568
Kind Code:
B2
Abstract:
An analog-to-digital converter (ADC) and a battery operated electronic device comprising the ADC. The ADC comprising an input switch; an array of binary-weighted capacitors, the array of capacitors receiving the input voltage signal via the input switch in an on state of the input switch; a plurality of switches, each switch connected in series with a respective one of the capacitors at an opposite side compared to the input switch, wherein a VDD signal is applied to each switch in one switching state and ground in another switching state; a comparator having as one input a voltage from the input switch side of the array of capacitors and as another input a voltage of VDD/2; and a switch control unit coupled to an output of the comparator for controlling the switches based on the output from the comparator.
Inventors:
Shu Young Pin
Wu Hong Lei
Wu Hong Lei
Application Number:
JP2008553211A
Publication Date:
November 09, 2011
Filing Date:
February 02, 2007
Export Citation:
Assignee:
National University of Singapore
International Classes:
H03M1/38
Domestic Patent References:
| JPS60261221A | 1985-12-24 | |||
| JPS5820028A | 1983-02-05 | |||
| JPS55165027A | 1980-12-23 | |||
| JPH0357323A | 1991-03-12 | |||
| JPH05244002A | 1993-09-21 | |||
| JPS55165025A | 1980-12-23 |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takao Maruyama
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takao Maruyama