JP6510086B2 - Adコンバータ - Google Patents
Adコンバータ Download PDFInfo
- Publication number
- JP6510086B2 JP6510086B2 JP2018002815A JP2018002815A JP6510086B2 JP 6510086 B2 JP6510086 B2 JP 6510086B2 JP 2018002815 A JP2018002815 A JP 2018002815A JP 2018002815 A JP2018002815 A JP 2018002815A JP 6510086 B2 JP6510086 B2 JP 6510086B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- bits
- resolution
- converter
- input signal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
- H03M1/0634—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale
- H03M1/0656—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale in the time domain, e.g. using intended jitter as a dither signal
- H03M1/066—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale in the time domain, e.g. using intended jitter as a dither signal by continuously permuting the elements used, i.e. dynamic element matching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
- H03M1/0609—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic at two points of the transfer characteristic, i.e. by adjusting two reference values, e.g. offset and gain error
-
- 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
- H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
- H03M1/188—Multi-path, i.e. having a separate analogue/digital converter for each possible range
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/004—Reconfigurable analogue/digital or digital/analogue converters
- H03M1/005—Reconfigurable analogue/digital or digital/analogue converters among different converters types
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0602—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic
- H03M1/0604—Continuously compensating for, or preventing, undesired influence of physical parameters of deviations from the desired transfer characteristic at one point, i.e. by adjusting a single reference value, e.g. bias or gain error
-
- 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
- H03M1/1205—Multiplexed conversion systems
-
- 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
- H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
-
- 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
-
- 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
- H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
- H03M1/186—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedforward mode, i.e. by determining the range to be selected directly from the input signal
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Description
Claims (5)
- アナログ信号をデジタル信号に変換するコンバータにおいて、
アナログ形態の入力信号を受信する入力部;
前記入力信号の動的範囲及び所定の第1ビット数に対応する第1分解能に基づいて、前記入力信号をデジタル形態の前処理信号に変換する前処理部;
前記第1ビット数より小さい第2ビット数に対応する第2分解能に基づいて、前記前処理信号を第1出力信号に変換する第1変換部;及び
前記第1ビット数より小さくて前記第2ビット数と異なる第3ビット数に対応する第3分解能に基づいて、前記前処理信号を第2出力信号に変換する第2変換部を含むADコンバータ。 - 前記第1ビット数はNで、前記第2ビット数はiであり、前記第3ビット数はjである場合、
前記第1変換部は、前記前処理信号を2(N-i)で割る演算を実施して、前記前処理信号を前記第1出力信号に変換して、
前記第2変換部は、前記前処理信号を2(N-j)で割る演算を実施して、前記前処理信号を前記第2出力信号に変換する、請求項1に記載のADコンバータ。 - 前記前処理部は、
前記入力信号の動的範囲の両端にマージンを付加した形態の誤差検出用拡張範囲、及び前記第1ビット数より大きい誤差検出用ビット数に対応する誤差検出用分解能に基づいて、前記入力信号を第1デジタル値に変換して、
前記誤差検出用分解能によって算出されたオフセット誤差(offset error)及び利得誤差(gain error)を補正して、前記第1デジタル値を第2デジタル値に変換して、
前記誤差検出用分解能及び前記第1分解能との偏差に基づいて、前記第2デジタル値を前記前処理信号に変換する、請求項1または請求項2に記載のADコンバータ。 - 前記第1ビット数はN(Nは、2以上の自然数)である場合、
前記入力信号の動的範囲のうち、最小値に対応する前処理信号は0であり、前記入力信号の動的範囲のうち、最大値に対応する前処理信号は1超2N以下である、請求項1ないし請求項3のいずれかに記載のADコンバータ。 - 前記第1及び第2出力信号のうち少なくとも一つを出力する出力部をさらに含む、請求項1ないし請求項4のいずれかに記載のADコンバータ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170043269A KR101877672B1 (ko) | 2017-04-03 | 2017-04-03 | Ad컨버터 |
KR10-2017-0043269 | 2017-04-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018182717A JP2018182717A (ja) | 2018-11-15 |
JP6510086B2 true JP6510086B2 (ja) | 2019-05-08 |
Family
ID=60937624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018002815A Expired - Fee Related JP6510086B2 (ja) | 2017-04-03 | 2018-01-11 | Adコンバータ |
Country Status (5)
Country | Link |
---|---|
US (1) | US10122373B2 (ja) |
EP (1) | EP3386111A1 (ja) |
JP (1) | JP6510086B2 (ja) |
KR (1) | KR101877672B1 (ja) |
CN (1) | CN108696277A (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11782861B2 (en) | 2019-01-24 | 2023-10-10 | Siemens Aktiengesellschaft | Extension module for independently storing calibration data, component, and component calibration method |
US11664815B2 (en) * | 2019-03-28 | 2023-05-30 | Panasonic Intellectual Property Management Co., Ltd. | Digital filter, A/D converter, sensor processing circuit, and sensor system |
CN112945454A (zh) * | 2019-12-11 | 2021-06-11 | 安普泰科电子韩国有限公司 | 压力感测装置及压力感测装置的处理方法 |
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-
2017
- 2017-04-03 KR KR1020170043269A patent/KR101877672B1/ko active IP Right Grant
-
2018
- 2018-01-05 EP EP18150442.4A patent/EP3386111A1/en not_active Withdrawn
- 2018-01-09 US US15/865,991 patent/US10122373B2/en not_active Expired - Fee Related
- 2018-01-11 JP JP2018002815A patent/JP6510086B2/ja not_active Expired - Fee Related
- 2018-01-12 CN CN201810030364.2A patent/CN108696277A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
EP3386111A1 (en) | 2018-10-10 |
CN108696277A (zh) | 2018-10-23 |
JP2018182717A (ja) | 2018-11-15 |
US10122373B2 (en) | 2018-11-06 |
KR101877672B1 (ko) | 2018-07-11 |
US20180287623A1 (en) | 2018-10-04 |
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