JPS55166313A - Operational amplifier - Google Patents

Operational amplifier

Info

Publication number
JPS55166313A
JPS55166313A JP7495879A JP7495879A JPS55166313A JP S55166313 A JPS55166313 A JP S55166313A JP 7495879 A JP7495879 A JP 7495879A JP 7495879 A JP7495879 A JP 7495879A JP S55166313 A JPS55166313 A JP S55166313A
Authority
JP
Japan
Prior art keywords
output
type
pair
series
transistor pair
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
Application number
JP7495879A
Other languages
Japanese (ja)
Inventor
Tatsuji Asakawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP7495879A priority Critical patent/JPS55166313A/en
Publication of JPS55166313A publication Critical patent/JPS55166313A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03F2203/45508—Indexing scheme relating to differential amplifiers the CSC comprising a voltage generating circuit as bias circuit for the CSC

Abstract

PURPOSE:To enhance the output current (source) capacity along with the sink source and thus increase the dynamic characteristics, by using the differential amplifiers in two steps with the output step used as a push-pull amplifier to increase the output current capacity as well as to double the level shift function. CONSTITUTION:N-type MOSFET204, 205 of the same polarity are connected in series to constant current source transistor (TR)203, thus forming differential input transistor pair of 204 and 205. In addition, load transistor pair 206 and 207 are formed by P-type MOSFET206, 207 in series to pair 204 and 205. Thus the 1st differential amplification step is formed. On the other hand, differential input transistor pair 304 and 305 formed with P-type MOSFET304, 305 are connected in series to constant current source TR303. Furthermore, load transistor pair 306 and 307 formed with N-type MOSFET306, 307 are connected to pair 304 and 305. Thus the 2nd differential amplification step is formed. The output of the 1st amplidication step is supplied to output TR209 received the push-pull connection; and the output of the 2nd amplification step is applied to output TR308. As a result, the capacity can be increased for the current delivered through output terminal V0.
JP7495879A 1979-06-14 1979-06-14 Operational amplifier Pending JPS55166313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7495879A JPS55166313A (en) 1979-06-14 1979-06-14 Operational amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7495879A JPS55166313A (en) 1979-06-14 1979-06-14 Operational amplifier

Publications (1)

Publication Number Publication Date
JPS55166313A true JPS55166313A (en) 1980-12-25

Family

ID=13562327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7495879A Pending JPS55166313A (en) 1979-06-14 1979-06-14 Operational amplifier

Country Status (1)

Country Link
JP (1) JPS55166313A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079809A (en) * 1983-10-06 1985-05-07 Sony Corp Cmos operational amplifier
US5083051A (en) * 1990-02-26 1992-01-21 Motorola, Inc. Output driver circuit with improved output stage biasing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396651A (en) * 1977-01-31 1978-08-24 Philips Nv Amplifying circuit disposition

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5396651A (en) * 1977-01-31 1978-08-24 Philips Nv Amplifying circuit disposition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6079809A (en) * 1983-10-06 1985-05-07 Sony Corp Cmos operational amplifier
US5083051A (en) * 1990-02-26 1992-01-21 Motorola, Inc. Output driver circuit with improved output stage biasing

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