JP4961425B2 - 演算増幅器 - Google Patents
演算増幅器 Download PDFInfo
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- JP4961425B2 JP4961425B2 JP2008523052A JP2008523052A JP4961425B2 JP 4961425 B2 JP4961425 B2 JP 4961425B2 JP 2008523052 A JP2008523052 A JP 2008523052A JP 2008523052 A JP2008523052 A JP 2008523052A JP 4961425 B2 JP4961425 B2 JP 4961425B2
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- operational amplifier
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- 239000003990 capacitor Substances 0.000 claims description 42
- 230000003321 amplification Effects 0.000 claims description 34
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 34
- 230000008859 change Effects 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 15
- 230000004044 response Effects 0.000 description 15
- 230000001052 transient effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 9
- 230000001965 increasing effect Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
- H03F3/45183—Long tailed pairs
- H03F3/45192—Folded cascode stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
- H04N25/78—Readout circuits for addressed sensors, e.g. output amplifiers or A/D converters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45248—Indexing scheme relating to differential amplifiers the dif amp being designed for improving the slew rate
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45431—Indexing scheme relating to differential amplifiers the CMCL output control signal being a current signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45466—Indexing scheme relating to differential amplifiers the CSC being controlled, e.g. by a signal derived from a non specified place in the dif amp circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45482—Indexing scheme relating to differential amplifiers the CSC comprising offset means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45522—Indexing scheme relating to differential amplifiers the FBC comprising one or more potentiometers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45524—Indexing scheme relating to differential amplifiers the FBC comprising one or more active resistors and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45526—Indexing scheme relating to differential amplifiers the FBC comprising a resistor-capacitor combination and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45544—Indexing scheme relating to differential amplifiers the IC comprising one or more capacitors, e.g. coupling capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45631—Indexing scheme relating to differential amplifiers the LC comprising one or more capacitors, e.g. coupling capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45692—Indexing scheme relating to differential amplifiers the LC comprising one or more resistors in series with a capacitor coupled to the LC by feedback
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
Description
図1は、本発明の第1の実施形態の演算増幅器の全体構成を示す回路図である。
図11は、本発明の第2の実施形態の演算増幅器の全体構成を示す回路図である。
図14は、本発明の第3の実施形態の演算増幅器の全体構成を示す回路図である。
11 逆相出力端子
12 正相出力端子
21 正相入力端子
22 逆相入力端子
30、31 抵抗素子(第1及び第2の抵抗部)
32、33 負荷容量(第1及び第2の負荷部)
34、35 フィードバック容量(第1及び第2のフィードバック容量)
36、37 サンプリング容量(第1及び第2のサンプリング容量)
100、110 位相調整回路
Cf フィードバック容量の容量値
Cs サンプリング容量の容量値
CL 負荷容量の容量値
RO 抵抗素子の抵抗値
gm オペアンプのトランスコンダクタンス値
rO オペアンプ内の抵抗素子の抵抗値
400、401、403、
404、405、406 可変抵抗部
402 ゲート電圧制御回路
407 基板制御回路
410 抵抗選択信号
Claims (8)
- 信号を増幅する演算増幅段と、
前記演算増幅段の入力側に接続される第1及び第2のサンプリング容量と、
前記演算増幅段の出力信号によって駆動される第1及び第2の負荷部と、
第1及び第2の位相調整回路とを備え、
前記演算増幅段の入力側は、
正相入力端子及び逆相入力端子を有し、
前記演算増幅段の出力側は、
正相出力端子及び逆相出力端子を有し、
前記第1の位相調整回路は、前記逆相出力端子と前記正相入力端子との間に負帰還接続された第1のフィードバック容量及び、当該第1のフィードバック容量と前記逆相出力端子との間で当該第1のフィードバック容量と直列に接続された第1の抵抗部を有し、
前記第2の位相調整回路は、前記正相出力端子と前記逆相入力端子との間に負帰還接続された第2のフィードバック容量及び、当該第2のフィードバック容量と前記正相出力端子との間で当該第2のフィードバック容量と直列に接続された第2の抵抗部を有し、
前記第1の負荷部は、前記第1の抵抗部と前記第1のフィードバック容量との間に接続され、
前記第2の負荷部は、前記第2の抵抗部と前記第2のフィードバック容量との間に接続され、
前記第1の抵抗部は、前記第1の負荷部の容量値に応じてその抵抗値が調整可能な可変抵抗部であり、
前記第2の抵抗部は、前記第2の負荷部の容量値に応じてその抵抗値が調整可能な可変抵抗部である
ことを特徴とする演算増幅器。 - 前記請求項1に記載の演算増幅器において、
前記第1及び第2の抵抗部は、トランジスタを有し、
前記第1及び第2の抵抗部の抵抗値は、前記トランジスタのオン抵抗である
ことを特徴とする演算増幅器。 - 前記請求項1又は2に記載の演算増幅器において、
前記可変抵抗部は、抵抗値が異なる複数の抵抗素子と、スイッチとを有し、
前記スイッチを切り替えて前記複数の抵抗素子の組み合わせを変更することによって、その抵抗値が変化する
ことを特徴とする演算増幅器。 - 前記請求項1又は2に記載の演算増幅器において、
前記可変抵抗部は、オン抵抗が異なる複数のスイッチを有し、
前記複数のスイッチを切り替えてそれらの組み合わせを変更することによって、その抵抗値が変化する
ことを特徴とする演算増幅器。 - 前記請求項3又は4に記載の演算増幅器において、
前記スイッチは、MOSスイッチであり、
前記MOSスイッチのオン抵抗を変化させることによって前記可変抵抗部の抵抗値が変化する
ことを特徴とする演算増幅器。 - 前記請求項5記載の演算増幅器において、
前記MOSスイッチのオン抵抗は、MOSトランジスタのゲート電圧値によって変化し、
前記可変抵抗部は、そのゲート電圧値の変化によって抵抗値が変化する
ことを特徴とする演算増幅器。 - 前記請求項5記載の演算増幅器において、
前記MOSスイッチのオン抵抗は、MOSトランジスタのバックゲート電圧値によって変化し、
前記可変抵抗部は、そのバックゲート電圧値の変化によって抵抗値が変化する
ことを特徴とする演算増幅器。 - 前記請求項1又は2に記載の演算増幅器において、
前記第1及び第2の抵抗部は、バイポーラトランジスタにより構成される
ことを特徴とする演算増幅器。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008523052A JP4961425B2 (ja) | 2006-11-30 | 2007-05-21 | 演算増幅器 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006323901 | 2006-11-30 | ||
JP2006323901 | 2006-11-30 | ||
JP2008523052A JP4961425B2 (ja) | 2006-11-30 | 2007-05-21 | 演算増幅器 |
PCT/JP2007/060353 WO2008065762A1 (fr) | 2006-11-30 | 2007-05-21 | Amplificateur opérationnel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2008065762A1 JPWO2008065762A1 (ja) | 2010-03-04 |
JP4961425B2 true JP4961425B2 (ja) | 2012-06-27 |
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JP2008523052A Expired - Fee Related JP4961425B2 (ja) | 2006-11-30 | 2007-05-21 | 演算増幅器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7852158B2 (ja) |
JP (1) | JP4961425B2 (ja) |
CN (1) | CN101443997A (ja) |
WO (1) | WO2008065762A1 (ja) |
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JP5565903B2 (ja) * | 2010-05-06 | 2014-08-06 | ローム株式会社 | スイッチドキャパシタ利得段 |
JP5645543B2 (ja) * | 2010-08-20 | 2014-12-24 | キヤノン株式会社 | 撮像装置 |
JP5228017B2 (ja) * | 2010-09-16 | 2013-07-03 | 株式会社東芝 | 高周波差動増幅回路 |
US8890611B2 (en) * | 2012-02-08 | 2014-11-18 | Mediatek Inc. | Operational amplifier circuits |
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US9467094B2 (en) | 2014-06-27 | 2016-10-11 | Qualcomm Incorporated | Phase-dependent operational amplifiers employing phase-based frequency compensation, and related systems and methods |
JP6693885B2 (ja) * | 2014-11-20 | 2020-05-13 | 株式会社半導体エネルギー研究所 | 半導体装置 |
CN105790722A (zh) * | 2014-12-25 | 2016-07-20 | 深圳市中兴微电子技术有限公司 | 一种运算放大电路、方法及温度传感器 |
CN108370238B (zh) * | 2015-12-21 | 2021-07-06 | 三菱电机株式会社 | 光接收器、光终端装置和光通信*** |
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2007
- 2007-05-21 US US12/296,367 patent/US7852158B2/en active Active
- 2007-05-21 JP JP2008523052A patent/JP4961425B2/ja not_active Expired - Fee Related
- 2007-05-21 CN CNA2007800171234A patent/CN101443997A/zh active Pending
- 2007-05-21 WO PCT/JP2007/060353 patent/WO2008065762A1/ja active Application Filing
Patent Citations (7)
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JPH04299607A (ja) * | 1991-03-28 | 1992-10-22 | Kubota Corp | 電荷増幅器 |
JPH06216772A (ja) * | 1993-01-14 | 1994-08-05 | Hitachi Ltd | A/d変換器、及び完全差動演算増幅回路 |
JPH11112244A (ja) * | 1997-10-07 | 1999-04-23 | Nec Corp | 半導体集積回路 |
JPH11353407A (ja) * | 1998-06-05 | 1999-12-24 | Kokusai Electric Co Ltd | アナログ加減算回路 |
JP2002190721A (ja) * | 2000-09-26 | 2002-07-05 | Oki America Inc | 高速スイッチトキャパシタ回路の整定時間に対するスイッチ抵抗の影響を補償する方法及び回路 |
JP2003008361A (ja) * | 2001-06-25 | 2003-01-10 | Matsushita Electric Ind Co Ltd | 位相補償増幅回路とそれを用いたスイッチドキャパシタ回路および抵抗可変型アンプ回路 |
JP2005020138A (ja) * | 2003-06-24 | 2005-01-20 | Sony Corp | 電流電圧変換回路および光受信装置 |
Also Published As
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US7852158B2 (en) | 2010-12-14 |
US20090284315A1 (en) | 2009-11-19 |
CN101443997A (zh) | 2009-05-27 |
WO2008065762A1 (fr) | 2008-06-05 |
JPWO2008065762A1 (ja) | 2010-03-04 |
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