Title:
ANALOG-TO-DIGITAL CONVERTER AND RELATED CHIP
Document Type and Number:
WIPO Patent Application WO/2020/181485
Kind Code:
A1
Abstract:
Provided is an analog-to-digital converter (10). The analog-to-digital converter has an analog-to-digital conversion operating mode and a measurement operating mode. The analog-to-digital converter comprises an input end (100), a digital-to-analog converter (104) and an output end (102), wherein the input end is used for receiving an analog signal; the output end is used for outputting a digital signal; and the digital-to-analog converter comprises a plurality of digital-to-analog conversion units. When the analog-to-digital converter is operated in the analog-to-digital conversion operating mode, the analog-to-digital converter is used for converting the analog signal into the digital signal; and when the analog-to-digital converter is operated in the measurement operating mode, the digital signal is related to the ratio of a capacitance value of a digital-to-analog conversion unit to be measured to a total capacitance value of the plurality of digital-to-analog conversion units.
Inventors:
NG SI HERNG (CN)
WANG WEN-CHI (CN)
WANG WEN-CHI (CN)
Application Number:
PCT/CN2019/077811
Publication Date:
September 17, 2020
Filing Date:
March 12, 2019
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
H03M3/00
Foreign References:
| CN104954018A | 2015-09-30 | |||
| CN103762982A | 2014-04-30 | |||
| US6674381B1 | 2004-01-06 |
Other References:
See also references of EP 3739761A4
Attorney, Agent or Firm:
TIANTAI LAW FIRM (CN)
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