JPS554131A - Amplifier - Google Patents

Amplifier

Info

Publication number
JPS554131A
JPS554131A JP7687178A JP7687178A JPS554131A JP S554131 A JPS554131 A JP S554131A JP 7687178 A JP7687178 A JP 7687178A JP 7687178 A JP7687178 A JP 7687178A JP S554131 A JPS554131 A JP S554131A
Authority
JP
Japan
Prior art keywords
voltages
input signal
gate
differential couple
fets
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
JP7687178A
Other languages
Japanese (ja)
Inventor
Toshiki Mori
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7687178A priority Critical patent/JPS554131A/en
Publication of JPS554131A publication Critical patent/JPS554131A/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
    • H03F3/45—Differential amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To suit two FETs, constituting a differential couple, to be IC-implemented with the number of terminals reduced, by fixing output direct-current potentials by making source and drain currents different when pinch-off voltages are equal each other with zero gate voltage. CONSTITUTION:To the gate of input-side FETT3 constituting a differential couple together with FETT4, an input signal is applied from input signal supply 301 and the direct-current potential of this input signal is equalized to that of negative voltage supply terminal 304. Then, FETs T3 and T4 are made into a differential couple with source and drain currents different each other when pinch-off voltages are equal while gate voltages are zero, so that the output direct-current potential can be determined without using any capacitor. Consequently, the both can be suited to be IC-implemented by reducing terminals in number.
JP7687178A 1978-06-23 1978-06-23 Amplifier Pending JPS554131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7687178A JPS554131A (en) 1978-06-23 1978-06-23 Amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7687178A JPS554131A (en) 1978-06-23 1978-06-23 Amplifier

Publications (1)

Publication Number Publication Date
JPS554131A true JPS554131A (en) 1980-01-12

Family

ID=13617692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7687178A Pending JPS554131A (en) 1978-06-23 1978-06-23 Amplifier

Country Status (1)

Country Link
JP (1) JPS554131A (en)

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