JPS6477315A - Voltage comparator - Google Patents

Voltage comparator

Info

Publication number
JPS6477315A
JPS6477315A JP23448387A JP23448387A JPS6477315A JP S6477315 A JPS6477315 A JP S6477315A JP 23448387 A JP23448387 A JP 23448387A JP 23448387 A JP23448387 A JP 23448387A JP S6477315 A JPS6477315 A JP S6477315A
Authority
JP
Japan
Prior art keywords
input terminal
comparator
inversional
inversional input
circuits
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.)
Granted
Application number
JP23448387A
Other languages
Japanese (ja)
Other versions
JP2547791B2 (en
Inventor
Tomohiro Miyazaki
Masayuki Sugaya
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62234483A priority Critical patent/JP2547791B2/en
Publication of JPS6477315A publication Critical patent/JPS6477315A/en
Application granted granted Critical
Publication of JP2547791B2 publication Critical patent/JP2547791B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To prevent a pull-up resistor from generating power consumption by using 1st and 2nd comparators and 1st and 2nd inverting circuits and combining switching operation based upon the 1st and 2nd comparators with logical inversion operation based upon the inverting circuits. CONSTITUTION:The title comparator is constituted of the 1st open drain type comparator 1 for comparing voltages inputted through a non-inversional input terminal 7 and an inversional input terminal 8, the 2nd open drain type comparator 2 whose inversional input terminal is connected to the non-inversional input terminal of the 1st comparator and non-inversional input terminal is connected to the inversional input terminal of the 1st comparator, the 1st and 2nd NOT circuits 3, 5 and the 1st and 2nd resistors 4, 6. When a load condition is a high impedance load based on the switching operation of the 1st and 2nd comparators 1, 2 and logical inversion operation, power to be consumed by the 1st and 2nd NOT circuits 3, 5 is only electrostatic power consumption, which is extremely small.
JP62234483A 1987-09-18 1987-09-18 Voltage comparison circuit Expired - Lifetime JP2547791B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62234483A JP2547791B2 (en) 1987-09-18 1987-09-18 Voltage comparison circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62234483A JP2547791B2 (en) 1987-09-18 1987-09-18 Voltage comparison circuit

Publications (2)

Publication Number Publication Date
JPS6477315A true JPS6477315A (en) 1989-03-23
JP2547791B2 JP2547791B2 (en) 1996-10-23

Family

ID=16971727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62234483A Expired - Lifetime JP2547791B2 (en) 1987-09-18 1987-09-18 Voltage comparison circuit

Country Status (1)

Country Link
JP (1) JP2547791B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516539A (en) * 1978-07-20 1980-02-05 Nec Corp Level shifter circuit
JPS5763928A (en) * 1980-10-06 1982-04-17 Matsushita Electric Ind Co Ltd Comparing circuit for ad converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5516539A (en) * 1978-07-20 1980-02-05 Nec Corp Level shifter circuit
JPS5763928A (en) * 1980-10-06 1982-04-17 Matsushita Electric Ind Co Ltd Comparing circuit for ad converter

Also Published As

Publication number Publication date
JP2547791B2 (en) 1996-10-23

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