JPS5672524A - Comparator circuit - Google Patents

Comparator circuit

Info

Publication number
JPS5672524A
JPS5672524A JP15040279A JP15040279A JPS5672524A JP S5672524 A JPS5672524 A JP S5672524A JP 15040279 A JP15040279 A JP 15040279A JP 15040279 A JP15040279 A JP 15040279A JP S5672524 A JPS5672524 A JP S5672524A
Authority
JP
Japan
Prior art keywords
transistors
common
connection point
current switch
emitters
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
JP15040279A
Other languages
Japanese (ja)
Inventor
Akira Matsuzawa
Michihiro Inoue
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 JP15040279A priority Critical patent/JPS5672524A/en
Publication of JPS5672524A publication Critical patent/JPS5672524A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/603—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors with coupled emitters

Landscapes

  • Manipulation Of Pulses (AREA)
  • Electronic Switches (AREA)
  • Analogue/Digital Conversion (AREA)
  • Logic Circuits (AREA)

Abstract

PURPOSE:To make it possible to execute the operation of low voltage and low current, by providing a current switch consisting of one pair of transistors which have connected the emitters in common respectively, on the respective collectors of one pair of transistors which have connected the emitters in common. CONSTITUTION:The current switch circuit consisting of transistors 50-53 and the resistances 54-56 is provided between the common connection point A of the transistors 32 and 19, and the connection point A' of the resistance 25 and the transistor 27 base, and more-over, between the connection points B and B' which are opposed to the connection points A and A'. And the common connection point of the bases of the transistors 23, 24 is connected to the terminal 57, the bases of the transistors 50-53 are connected in common and are connected to the terminal 58, and the potential of the terminals 57, 58 is varied, by which the current switch is changed.
JP15040279A 1979-11-19 1979-11-19 Comparator circuit Pending JPS5672524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15040279A JPS5672524A (en) 1979-11-19 1979-11-19 Comparator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15040279A JPS5672524A (en) 1979-11-19 1979-11-19 Comparator circuit

Publications (1)

Publication Number Publication Date
JPS5672524A true JPS5672524A (en) 1981-06-16

Family

ID=15496181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15040279A Pending JPS5672524A (en) 1979-11-19 1979-11-19 Comparator circuit

Country Status (1)

Country Link
JP (1) JPS5672524A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62202613A (en) * 1986-02-28 1987-09-07 Nec Corp Comparator
JPS6454933A (en) * 1987-07-16 1989-03-02 Samsung Semiconductor Tele Unit comparing circuit of totally parallel a/d converter
JPH01151826A (en) * 1987-08-07 1989-06-14 Burr Brown Corp Sub-range analog-digital converter with multplex input amplifier separating circuit between reduction junction point and lsb encoder
JPH05152961A (en) * 1991-04-09 1993-06-18 Sony Tektronix Corp Comparator circuit for a/d converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62202613A (en) * 1986-02-28 1987-09-07 Nec Corp Comparator
JPS6454933A (en) * 1987-07-16 1989-03-02 Samsung Semiconductor Tele Unit comparing circuit of totally parallel a/d converter
JPH01151826A (en) * 1987-08-07 1989-06-14 Burr Brown Corp Sub-range analog-digital converter with multplex input amplifier separating circuit between reduction junction point and lsb encoder
JPH05152961A (en) * 1991-04-09 1993-06-18 Sony Tektronix Corp Comparator circuit for a/d converter

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