JPS6488258A - Comparator - Google Patents
ComparatorInfo
- Publication number
- JPS6488258A JPS6488258A JP24634787A JP24634787A JPS6488258A JP S6488258 A JPS6488258 A JP S6488258A JP 24634787 A JP24634787 A JP 24634787A JP 24634787 A JP24634787 A JP 24634787A JP S6488258 A JPS6488258 A JP S6488258A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- comparison level
- input
- cmos
- resistor
- 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
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE:To enable the minute setting of a comparison level and thereby to enable the reduction of nonuniformity of the comparison level and the increase of a packaging density, by a method wherein the output side of a first inverter is fed back to the input side thereof to make it operate as a buffer amplifier. CONSTITUTION:A device is constituted by a first inverter 2 constructed of CMOS and a second inverter 3 constructed also of CMOS, and it receives an input signal through a capacitor 4 for input and a resistor 5. The inverter 2 has a resistor 6 for feeding back the output side to the input side and so operates as a buffer amplifier, a threshold value of which is determined by the ratio in the number of elements or in gate areas between P-channel transistors Trp and N-channel transistors Trn or between transistors in connections reverse thereto. By constituting the device by the two inverters 2 and 3 having different threshold values as stated above, a comparison level can be set on the basis of the difference between these threshold values. As the result, the comparison level of a comparator can be set minutely without using a large number of resistors.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24634787A JPS6488258A (en) | 1987-09-30 | 1987-09-30 | Comparator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24634787A JPS6488258A (en) | 1987-09-30 | 1987-09-30 | Comparator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6488258A true JPS6488258A (en) | 1989-04-03 |
Family
ID=17147207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24634787A Pending JPS6488258A (en) | 1987-09-30 | 1987-09-30 | Comparator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6488258A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05203682A (en) * | 1992-01-28 | 1993-08-10 | Fujikura Ltd | Semiconductor sensor |
JPH05203681A (en) * | 1992-01-28 | 1993-08-10 | Fujikura Ltd | Semiconductor sensor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60205264A (en) * | 1984-03-30 | 1985-10-16 | Citizen Watch Co Ltd | Voltage comparison circuit |
-
1987
- 1987-09-30 JP JP24634787A patent/JPS6488258A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60205264A (en) * | 1984-03-30 | 1985-10-16 | Citizen Watch Co Ltd | Voltage comparison circuit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05203682A (en) * | 1992-01-28 | 1993-08-10 | Fujikura Ltd | Semiconductor sensor |
JPH05203681A (en) * | 1992-01-28 | 1993-08-10 | Fujikura Ltd | Semiconductor sensor |
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