KR0145857B1 - 연산증폭기에 있어서 전류소모 최적화 회로 - Google Patents
연산증폭기에 있어서 전류소모 최적화 회로 Download PDFInfo
- Publication number
- KR0145857B1 KR0145857B1 KR1019950023994A KR19950023994A KR0145857B1 KR 0145857 B1 KR0145857 B1 KR 0145857B1 KR 1019950023994 A KR1019950023994 A KR 1019950023994A KR 19950023994 A KR19950023994 A KR 19950023994A KR 0145857 B1 KR0145857 B1 KR 0145857B1
- Authority
- KR
- South Korea
- Prior art keywords
- operational amplifier
- terminal
- current consumption
- pmos transistor
- current
- Prior art date
Links
Classifications
-
- 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
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
-
- 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
- H03F3/4521—Complementary long tailed pairs having parallel inputs and being supplied in parallel
- H03F3/45219—Folded cascode stages
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
Description
Claims (1)
- P,N모스트랜지스터(Q1~Q4)로 구성된 차동 입력증폭기(101)와, 레벨 쉬프트 및 차동/싱글 앤디드 이득회로(103)용 N모스트랜지스터(Q5)와, 상기 P,N모스트랜지스터(Q6, Q7)로 구성된 출력버퍼(105)로 구성된 연산증폭기에 있어서, 상기 출력버퍼(105)의 PMOS트랜지스터(Q6)의 소오스단에 PMOS트랜지스터(Q101)의 드레인단을 연결하고, 상기 PMOS트랜지스터(Q101)의 소오스단에 전원단(Vdd)을 연결하며, 상기 PMOS트랜지스터(Q101)의 게이트에 전력다운단(301)을 연결하여 동작이 필요치 않을시 전력다운단(301)과 상기 레벨 쉬프트 및 차동/싱글 앤디드 이득회로(103)용 N모스트랜지스터(Q5)와 출력버퍼(105)의 N모스트랜지스터(Q7)의 게이트에 인가되는 바이어스단(302)으로 인가되는 바이어스 제어신호에 의해 전류(l1, l2)의 흐름을 억제하도록 구성됨을 특징으로 하는 연산증폭기에 있어서 전력소모 최적화 회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950023994A KR0145857B1 (ko) | 1995-08-03 | 1995-08-03 | 연산증폭기에 있어서 전류소모 최적화 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950023994A KR0145857B1 (ko) | 1995-08-03 | 1995-08-03 | 연산증폭기에 있어서 전류소모 최적화 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970013645A KR970013645A (ko) | 1997-03-29 |
KR0145857B1 true KR0145857B1 (ko) | 1998-12-01 |
Family
ID=19422789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950023994A KR0145857B1 (ko) | 1995-08-03 | 1995-08-03 | 연산증폭기에 있어서 전류소모 최적화 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0145857B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100784535B1 (ko) * | 2006-02-20 | 2007-12-11 | 엘지전자 주식회사 | 연산 증폭기 및 이를 이용한 액정 표시 장치의 구동 장치및 그 방법 |
KR101010141B1 (ko) * | 2004-07-16 | 2011-01-24 | 주식회사 하이닉스반도체 | 차동증폭기 |
-
1995
- 1995-08-03 KR KR1019950023994A patent/KR0145857B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101010141B1 (ko) * | 2004-07-16 | 2011-01-24 | 주식회사 하이닉스반도체 | 차동증폭기 |
KR100784535B1 (ko) * | 2006-02-20 | 2007-12-11 | 엘지전자 주식회사 | 연산 증폭기 및 이를 이용한 액정 표시 장치의 구동 장치및 그 방법 |
Also Published As
Publication number | Publication date |
---|---|
KR970013645A (ko) | 1997-03-29 |
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