JP3936952B2 - Ab級cmos出力回路 - Google Patents
Ab級cmos出力回路 Download PDFInfo
- Publication number
- JP3936952B2 JP3936952B2 JP2004342421A JP2004342421A JP3936952B2 JP 3936952 B2 JP3936952 B2 JP 3936952B2 JP 2004342421 A JP2004342421 A JP 2004342421A JP 2004342421 A JP2004342421 A JP 2004342421A JP 3936952 B2 JP3936952 B2 JP 3936952B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- channel transistor
- output circuit
- class
- cmos output
- 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
- 239000004065 semiconductor Substances 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 description 7
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 101100243558 Caenorhabditis elegans pfd-3 gene Proteins 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Images
Classifications
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
- H03F3/3022—CMOS common source output SEPP amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/34—DC amplifiers in which all stages are DC-coupled
- H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
- H03F3/347—DC amplifiers in which all stages are DC-coupled with semiconductor devices only in integrated circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/453—Controlling being realised by adding a replica circuit or by using one among multiple identical circuits as a replica circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/456—A scaled replica of a transistor being present in an amplifier
-
- 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
- H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
- H03F2203/30015—An input signal dependent control signal controls the bias of an output stage in the SEPP
-
- 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
- H03F2203/45366—Indexing scheme relating to differential amplifiers the AAC comprising multiple transistors parallel coupled at their gates only, e.g. in a cascode dif amp, only those forming the composite common source transistor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Amplifiers (AREA)
- Logic Circuits (AREA)
Description
上記半導体基板上において、上記第1のPチャンネルトランジスタと実質的に同一又は相似のサイズを有する第2のPチャンネルトランジスタと、上記第1のNチャンネルトランジスタと実質的に同一又は相似のサイズを有する第2のNチャンネルトランジスタとを形成してなるレプリカ回路と、
上記レプリカ回路の上記第2のPチャンネルトランジスタ及び上記第2のNチャンネルトランジスタを、上記動作電流I0に対応した基準電流Irefに基づいて動作させ、上記第2のPチャンネルトランジスタのゲートに印加される第1のバイアス電圧を上記第1のPチャンネルトランジスタのゲートに印加するとともに、上記第2のNチャンネルトランジスタのゲートに印加される第2のバイアス電圧を上記第1のNチャンネルトランジスタのゲートに印加するバイアス電圧供給手段とを備えたことを特徴とする。
Vthn<Vbn1<Vdd (1)
[数2]
|Vthp|>Vbn1>Vss (2)
2…レベルシフタ回路、
3…CMOS出力回路、
4…レプリカ回路、
C1,C2…結合用キャパシタ、
P1乃至P13…PチャンネルMOSFET、
N1乃至N13…NチャンネルMOSFET、
T11,T12…入力端子、
T13…出力端子、
T21,T22,T31,T32,T41,T42…バイアス入力端子、
T51,T52…切り換え信号入力端子、
T61,T62…バイアス出力端子、
T71,T72…端子。
Claims (3)
- 第1のPチャンネルトランジスタと、第1のNチャンネルトランジスタとからなり、所定の半導体基板上に形成され、所定の動作電流I0により動作させるCMOS回路を備えたCMOS出力回路において、
上記半導体基板上において、上記第1のPチャンネルトランジスタと実質的に同一又は相似のサイズを有する第2のPチャンネルトランジスタと、上記第1のNチャンネルトランジスタと実質的に同一又は相似のサイズを有する第2のNチャンネルトランジスタとを形成してなるレプリカ回路と、
上記レプリカ回路の上記第2のPチャンネルトランジスタ及び上記第2のNチャンネルトランジスタを、上記動作電流I0に対応した基準電流Irefに基づいて動作させ、上記第2のPチャンネルトランジスタのゲートに印加される第1のバイアス電圧を上記CMOS回路の第1のPチャンネルトランジスタのゲートに印加するとともに、上記第2のNチャンネルトランジスタのゲートに印加される第2のバイアス電圧を上記CMOS回路の第1のNチャンネルトランジスタのゲートに印加するバイアス電圧供給手段とを備え、
上記第1のPチャンネルトランジスタと電源電圧源Vddとの間に、動作切り換え用の第3のPチャンネルトランジスタを挿入し、上記第1のNチャンネルトランジスタと接地電圧Vssとの間に、動作切り換え用の第3のNチャンネルトランジスタを挿入したことを特徴とするAB級CMOS出力回路。 - 上記AB級CMOS出力回路の前段に設けられた演算増幅回路をさらに備えたことを特徴とする請求項1記載のAB級CMOS出力回路。
- 上記演算増幅回路と、上記AB級CMOS出力回路との間に設けられた、レベルシフタ回路をさらに備えたことを特徴とする請求項2記載のAB級CMOS出力回路。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004342421A JP3936952B2 (ja) | 2004-11-26 | 2004-11-26 | Ab級cmos出力回路 |
US11/287,469 US7301399B2 (en) | 2004-11-26 | 2005-11-28 | Class AB CMOS output circuit equipped with CMOS circuit operating by predetermined operating current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004342421A JP3936952B2 (ja) | 2004-11-26 | 2004-11-26 | Ab級cmos出力回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006157262A JP2006157262A (ja) | 2006-06-15 |
JP3936952B2 true JP3936952B2 (ja) | 2007-06-27 |
Family
ID=36566813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004342421A Expired - Fee Related JP3936952B2 (ja) | 2004-11-26 | 2004-11-26 | Ab級cmos出力回路 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7301399B2 (ja) |
JP (1) | JP3936952B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI413360B (zh) * | 2008-04-29 | 2013-10-21 | Richtek Technology Corp | Class AB output stages with variable bias point control and their methods |
CN101577529B (zh) * | 2008-05-09 | 2016-01-27 | 立锜科技股份有限公司 | 具有可变偏压点控制的ab类输出级及其方法 |
JP4564559B2 (ja) | 2008-10-20 | 2010-10-20 | 株式会社半導体理工学研究センター | 差分増幅回路とそれを用いたad変換装置 |
US8536947B2 (en) * | 2008-12-19 | 2013-09-17 | Qualcomm Incorporated | Class AB amplifier with resistive level-shifting circuitry |
US8823454B2 (en) * | 2012-03-30 | 2014-09-02 | Freescale Semiconductor, Inc. | Fully complementary self-biased differential receiver with startup circuit |
US10177713B1 (en) | 2016-03-07 | 2019-01-08 | Ali Tasdighi Far | Ultra low power high-performance amplifier |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19834209C1 (de) | 1998-07-29 | 2000-04-20 | Siemens Ag | Verstärkerausgangsstufe |
US6603356B1 (en) * | 2001-12-07 | 2003-08-05 | Lsi Logic Corporation | Method and circuit for controlling quiescent current of amplifier |
US7078971B2 (en) * | 2004-11-19 | 2006-07-18 | Potentia Semiconductor Inc. | Class AB CMOS amplifiers |
-
2004
- 2004-11-26 JP JP2004342421A patent/JP3936952B2/ja not_active Expired - Fee Related
-
2005
- 2005-11-28 US US11/287,469 patent/US7301399B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20060114061A1 (en) | 2006-06-01 |
JP2006157262A (ja) | 2006-06-15 |
US7301399B2 (en) | 2007-11-27 |
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