FR2430693A1 - Circuit permettant de limiter la tension differentielle dans un amplificateur differentiel - Google Patents
Circuit permettant de limiter la tension differentielle dans un amplificateur differentielInfo
- Publication number
- FR2430693A1 FR2430693A1 FR7917240A FR7917240A FR2430693A1 FR 2430693 A1 FR2430693 A1 FR 2430693A1 FR 7917240 A FR7917240 A FR 7917240A FR 7917240 A FR7917240 A FR 7917240A FR 2430693 A1 FR2430693 A1 FR 2430693A1
- Authority
- FR
- France
- Prior art keywords
- conductive
- circuit
- node
- differential
- differential amplifier
- 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.)
- Pending
Links
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
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
- H03K17/0812—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit
- H03K17/08122—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the control circuit in field-effect transistor switches
-
- 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
- H03F2203/45214—Offset in a differential amplifier being reduced by control of the substrate voltage, the voltage being either fixed or variable
-
- 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
- H03F2203/45552—Indexing scheme relating to differential amplifiers the IC comprising clamping means, e.g. diodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
L'invention concerne un circuit qui limite la tension différentielle dans un amplificateur différentiel. Le circuit comprend deux bornes d'entrée lA et lB, deux transistors P1A et P1B qui sont montés en amplificateur différentiel et dont les électrodes de commande sont connectés à un noeud 13, un moyen de couplage normalement conducteur N2A qui répond à l'application d'une différence de potentiel entre le noeud 13 et la borne lA en devenant non conducteur si la différence de potentiel est de nature à rendre non conducteur le transistor P1A, un moyen de calage normalement non conducteur N3A qui répond à l'application de la différence de potentiel en calant l'électrode de commande de PIA sur le noeud 13 par un trajet de faible impédance si la différence de potentiel dépasse une certaine amplitude, et un moyen N2B qui couple l'électrode de commande de PIB à la borne 1B. Le moyen limiteur ne charge pas le circuit d'alimentation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/921,207 US4206418A (en) | 1978-07-03 | 1978-07-03 | Circuit for limiting voltage differential in differential amplifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2430693A1 true FR2430693A1 (fr) | 1980-02-01 |
Family
ID=25445092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7917240A Pending FR2430693A1 (fr) | 1978-07-03 | 1979-07-03 | Circuit permettant de limiter la tension differentielle dans un amplificateur differentiel |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4206418A (fr) |
| JP (1) | JPS5510300A (fr) |
| DE (1) | DE2926858A1 (fr) |
| FR (1) | FR2430693A1 (fr) |
| GB (1) | GB2024553B (fr) |
| IT (1) | IT1163683B (fr) |
| SE (1) | SE7905604L (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100366616B1 (ko) * | 1999-05-19 | 2003-01-09 | 삼성전자 주식회사 | 저전압 인터페이스용 고속 입력버퍼 회로 |
| US6507471B2 (en) * | 2000-12-07 | 2003-01-14 | Koninklijke Philips Electronics N.V. | ESD protection devices |
| US6693780B2 (en) | 2001-08-02 | 2004-02-17 | Koninklijke Philips Electronics N.V. | ESD protection devices for a differential pair of transistors |
| US6661118B2 (en) * | 2001-12-21 | 2003-12-09 | Adc Dsl Systems, Inc. | Differential voltage limiter |
| US6801080B1 (en) | 2003-04-07 | 2004-10-05 | Pericom Semiconductor Corp. | CMOS differential input buffer with source-follower input clamps |
| US10284144B2 (en) * | 2017-10-04 | 2019-05-07 | Novatek Microelectronics Corp. | Amplifier circuit of high response speed and related clamping method |
| US10917058B2 (en) * | 2018-07-06 | 2021-02-09 | Texas Instruments Incorporated | Servo-amplifier with closed-loop biasing |
| US11876496B2 (en) * | 2021-07-28 | 2024-01-16 | Texas Instruments Incorporated | Differential input circuits with input voltage protection |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3819952A (en) * | 1973-01-29 | 1974-06-25 | Mitsubishi Electric Corp | Semiconductor device |
| FR2232141A1 (fr) * | 1973-06-01 | 1974-12-27 | Rca Corp | |
| DE2304710B2 (de) * | 1972-01-31 | 1975-07-03 | Mitsubishi Denki K.K., Tokio | Schutzschaltung für Feldeffekttransistoren |
| US4044313A (en) * | 1976-12-01 | 1977-08-23 | Rca Corporation | Protective network for an insulated-gate field-effect (IGFET) differential amplifier |
| US4048575A (en) * | 1974-09-11 | 1977-09-13 | Motorola, Inc. | Operational amplifier |
| US4126830A (en) * | 1977-09-27 | 1978-11-21 | Rca Corporation | Low leakage gate protection circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3870968A (en) * | 1971-01-15 | 1975-03-11 | Monroe Electronics Inc | Electrometer voltage follower having MOSFET input stage |
| US3879640A (en) * | 1974-02-11 | 1975-04-22 | Rca Corp | Protective diode network for MOS devices |
| US3947727A (en) * | 1974-12-10 | 1976-03-30 | Rca Corporation | Protection circuit for insulated-gate field-effect transistors |
| US4027177A (en) * | 1975-03-05 | 1977-05-31 | Motorola, Inc. | Clamping circuit |
-
1978
- 1978-07-03 US US05/921,207 patent/US4206418A/en not_active Expired - Lifetime
-
1979
- 1979-06-26 SE SE7905604A patent/SE7905604L/xx not_active Application Discontinuation
- 1979-06-29 GB GB7922698A patent/GB2024553B/en not_active Expired
- 1979-06-29 IT IT24006/79A patent/IT1163683B/it active
- 1979-07-02 JP JP8434079A patent/JPS5510300A/ja active Pending
- 1979-07-03 FR FR7917240A patent/FR2430693A1/fr active Pending
- 1979-07-03 DE DE19792926858 patent/DE2926858A1/de not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2304710B2 (de) * | 1972-01-31 | 1975-07-03 | Mitsubishi Denki K.K., Tokio | Schutzschaltung für Feldeffekttransistoren |
| US3819952A (en) * | 1973-01-29 | 1974-06-25 | Mitsubishi Electric Corp | Semiconductor device |
| FR2232141A1 (fr) * | 1973-06-01 | 1974-12-27 | Rca Corp | |
| US4048575A (en) * | 1974-09-11 | 1977-09-13 | Motorola, Inc. | Operational amplifier |
| US4044313A (en) * | 1976-12-01 | 1977-08-23 | Rca Corporation | Protective network for an insulated-gate field-effect (IGFET) differential amplifier |
| US4126830A (en) * | 1977-09-27 | 1978-11-21 | Rca Corporation | Low leakage gate protection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| US4206418A (en) | 1980-06-03 |
| GB2024553B (en) | 1982-07-07 |
| IT1163683B (it) | 1987-04-08 |
| SE7905604L (sv) | 1980-01-04 |
| GB2024553A (en) | 1980-01-09 |
| JPS5510300A (en) | 1980-01-24 |
| DE2926858A1 (de) | 1980-01-24 |
| IT7924006A0 (it) | 1979-06-29 |
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