JPS6477315A - Voltage comparator - Google Patents
Voltage comparatorInfo
- 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
Links
Landscapes
- Manipulation Of Pulses (AREA)
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.
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)
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 |
-
1987
- 1987-09-18 JP JP62234483A patent/JP2547791B2/en not_active Expired - Lifetime
Patent Citations (2)
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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