JP7421882B2 - 集積回路及びセンサシステム - Google Patents
集積回路及びセンサシステム Download PDFInfo
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- JP7421882B2 JP7421882B2 JP2019142424A JP2019142424A JP7421882B2 JP 7421882 B2 JP7421882 B2 JP 7421882B2 JP 2019142424 A JP2019142424 A JP 2019142424A JP 2019142424 A JP2019142424 A JP 2019142424A JP 7421882 B2 JP7421882 B2 JP 7421882B2
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- 239000003990 capacitor Substances 0.000 claims description 188
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- 238000010586 diagram Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
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- 230000008859 change Effects 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/002—Provisions or arrangements for saving power, e.g. by allowing a sleep mode, using lower supply voltage for downstream stages, using multiple clock domains or by selectively turning on stages when needed
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
- H03M1/462—Details of the control circuitry, e.g. of the successive approximation register
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
- H03M1/1245—Details of sampling arrangements or methods
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
- H03M1/466—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/34—Analogue value compared with reference values
- H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
- H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
- H03M1/466—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors
- H03M1/468—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter using switched capacitors in which the input S/H circuit is merged with the feedback DAC array
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
- H03M1/74—Simultaneous conversion
- H03M1/80—Simultaneous conversion using weighted impedances
- H03M1/802—Simultaneous conversion using weighted impedances using capacitors, e.g. neuron-mos transistors, charge coupled devices
- H03M1/804—Simultaneous conversion using weighted impedances using capacitors, e.g. neuron-mos transistors, charge coupled devices with charge redistribution
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/50—Analogue/digital converters with intermediate conversion to time interval
- H03M1/56—Input signal compared with linear ramp
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Analogue/Digital Conversion (AREA)
- Logic Circuits (AREA)
Description
10 集積回路
100,105 ADC
110 キャパシタ
120 スイッチ
130 比較器
140 SARロジック
145 レジスタ
150 電源キャパシタ
160 電源状態検出部
165 回路
200,205 DSP
305 センサ
405 外部電源
Claims (9)
- 集積回路において、
アナログ信号をデジタル信号に変換するADC(analog to digital converter)と、
前記デジタル信号を処理するDSP(digital signal processor)と、を含み、
前記ADCは、複数のキャパシタ、複数のスイッチ、比較器、SARロジック(successive approximation register logic)および電源キャパシタを含み、
前記SARロジックは、前記複数のキャパシタのうち少なくとも1つのキャパシタに連結される電圧を、第1基準電圧から第2基準電圧にスイッチングするとき、前記第1基準電圧から前記電源キャパシタを経て前記第2基準電圧にスイッチングするマルチレベルスイッチングにより前記デジタル信号のビットを決定し、
前記アナログ信号を前記デジタル信号に変換する過程において、前記マルチレベルスイッチングにより前記電源キャパシタに電圧を充電して電源を生成し、前記電源を介して、前記DSPに電力を供給する集積回路。 - 前記少なくとも1つのキャパシタは、
前記複数のキャパシタのうちの少なくとも1つのキャパシタであることを特徴とする請求項1に記載の集積回路。 - 前記ADCは、
前記電源キャパシタの電圧の大きさにより、前記マルチレベルスイッチングを制御し、前記DSPに供給される電力量を調節することを特徴とする請求項1に記載の集積回路。 - 前記ADCは、外部電源から供給された電力に基づき、前記アナログ信号を前記デジタル信号に変換し、
前記DSPは、前記外部電源から電力を供給されず、前記ADCから供給された電力に基づき、前記デジタル信号を処理することを特徴とする請求項1に記載の集積回路。 - センサシステムにおいて、
センサと、
外部電源と、
前記外部電源から供給された電力に基づき、前記センサによってセンシングされたアナログ信号をデジタル信号に変換するADC(analog to digital converter)と、
前記デジタル信号を処理するDSP(digital signal processor)と、を含み、
前記ADCは、複数のキャパシタ、複数のスイッチ、比較器、SARロジック(successive approximation register logic)および電源キャパシタを含み、
前記SARロジックは、前記複数のキャパシタのうち少なくとも1つのキャパシタに連結される電圧を、第1基準電圧から第2基準電圧にスイッチングするとき、前記第1基準電圧から前記電源キャパシタを経て前記第2基準電圧にスイッチングするマルチレベルスイッチングにより前記デジタル信号のビットを決定し、
前記アナログ信号を前記デジタル信号に変換する過程において、前記マルチレベルスイッチングにより前記電源キャパシタに電圧を充電して内部電源を生成し、前記内部電源を介して、前記DSPに電力を供給するセンサシステム。 - 前記ADCは、前記外部電源から電力を供給され、
前記DSPは、前記外部電源から電力を供給されず、前記ADCから供給された電力に基づき、前記デジタル信号を処理することを特徴とする請求項5に記載のセンサシステム。 - 前記DSPは、
前記外部電源から電力を供給され、前記ADC及び前記外部電源それぞれから供給された電力に基づき、前記デジタル信号を処理することを特徴とする請求項5に記載のセンサシステム。 - 前記ADCは、
前記センサから電力を供給され、前記センサ及び前記外部電源それぞれから供給された電力に基づき、前記アナログ信号を前記デジタル信号に変換することを特徴とする請求項5に記載のセンサシステム。 - 前記DSPは、
前記センサから電力を供給され、前記ADC及び前記センサそれぞれから供給された電力に基づき、前記デジタル信号を処理することを特徴とする請求項5に記載のセンサシステム。
Applications Claiming Priority (2)
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KR1020180166411A KR102682129B1 (ko) | 2018-12-20 | 2018-12-20 | Adc, 집적 회로, 및 센서 시스템 |
KR10-2018-0166411 | 2018-12-20 |
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JP2020102832A JP2020102832A (ja) | 2020-07-02 |
JP7421882B2 true JP7421882B2 (ja) | 2024-01-25 |
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US (1) | US10756746B2 (ja) |
EP (1) | EP3672083B1 (ja) |
JP (1) | JP7421882B2 (ja) |
KR (1) | KR102682129B1 (ja) |
CN (1) | CN111355489B (ja) |
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KR102626924B1 (ko) | 2019-06-20 | 2024-01-19 | 삼성전자주식회사 | 지향성 음향 센서와, 이를 이용한 지향 특성의 조절 방법 및 특정 방향의 음향 신호 감쇄 방법 |
US11476863B2 (en) | 2019-11-08 | 2022-10-18 | Analog Devices International Unlimited Company | Signal dependent reconfigurable data acquisition system |
US20230058641A1 (en) * | 2021-08-19 | 2023-02-23 | International Business Machines Corporation | Analog-to-digital conversion with bit skipping functionality |
CN114024550B (zh) * | 2021-10-27 | 2023-06-27 | 南方电网数字电网研究院有限公司 | 模数转换器和自动化配电设备 |
KR20230086877A (ko) | 2021-12-08 | 2023-06-16 | 삼성전자주식회사 | 지향성 음향 센서 |
KR20230094246A (ko) | 2021-12-20 | 2023-06-28 | 삼성전자주식회사 | 음향 센서를 이용한 방향 추정 장치 및 방법 |
KR20230095689A (ko) | 2021-12-22 | 2023-06-29 | 삼성전자주식회사 | 마이크로폰 패키지 및 이를 포함하는 전자 장치 |
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- 2019-06-06 US US16/433,046 patent/US10756746B2/en active Active
- 2019-07-02 EP EP19183950.5A patent/EP3672083B1/en active Active
- 2019-07-08 CN CN201910613894.4A patent/CN111355489B/zh active Active
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EP3672083A1 (en) | 2020-06-24 |
KR20200084935A (ko) | 2020-07-14 |
JP2020102832A (ja) | 2020-07-02 |
KR102682129B1 (ko) | 2024-07-09 |
US20200204187A1 (en) | 2020-06-25 |
CN111355489A (zh) | 2020-06-30 |
EP3672083B1 (en) | 2022-08-10 |
CN111355489B (zh) | 2024-03-12 |
US10756746B2 (en) | 2020-08-25 |
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