JPS5648716A - Offset voltage compensating circuit - Google Patents
Offset voltage compensating circuitInfo
- Publication number
- JPS5648716A JPS5648716A JP12497379A JP12497379A JPS5648716A JP S5648716 A JPS5648716 A JP S5648716A JP 12497379 A JP12497379 A JP 12497379A JP 12497379 A JP12497379 A JP 12497379A JP S5648716 A JPS5648716 A JP S5648716A
- Authority
- JP
- Japan
- Prior art keywords
- mos switches
- capacitors
- differential amplifier
- terminals
- input terminals
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analogue/Digital Conversion (AREA)
- Manipulation Of Pulses (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE:To obtain an amplifying circuit for a difference voltage which is not limited by the dynamic range of a differential amplifier, by switching capacitors MOS switches that connect signal input terminals and capacitors in a cross shape and in parallel. CONSTITUTION:Capacitors to be applied with an input signal are alternated by MOS switches T1 and T2 that connect signal input terminals 1 and 2 and one-side terminals 9 and 10 of capacitors C1 and C2 in a cross shape and MOS switches T3 and T4 that make parallel connections. The other-side terminals of capacitors C1 and C2 are connected to input terminals 7 and 8 of single-stage differential amplifier 11, whose input terminals 7 and 8 are connected to output terminals 5 and 6 of differential amplifier 11 and the other MOS switches T5 and T6. Then, control electrodes of MOS switches T1, T2, T5, and T6 are connected in common to control terminal 3, and those of MOS switches T3 and T4 to control terminal 4. Thus, the amplifying circuit for a difference voltage that is not limited by the dynamic range of differential amplifier 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12497379A JPS5648716A (en) | 1979-09-28 | 1979-09-28 | Offset voltage compensating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12497379A JPS5648716A (en) | 1979-09-28 | 1979-09-28 | Offset voltage compensating circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5648716A true JPS5648716A (en) | 1981-05-02 |
| JPS625376B2 JPS625376B2 (en) | 1987-02-04 |
Family
ID=14898792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12497379A Granted JPS5648716A (en) | 1979-09-28 | 1979-09-28 | Offset voltage compensating circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5648716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191523A (en) * | 1982-05-04 | 1983-11-08 | Mitsubishi Electric Corp | Drift correcting device |
| JPS59156016A (en) * | 1983-02-25 | 1984-09-05 | Nec Corp | Cmos amplifier circuit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534061Y2 (en) * | 1985-12-16 | 1993-08-30 | ||
| JPS63180191A (en) * | 1987-01-21 | 1988-07-25 | サンデン株式会社 | Card feeder |
| US7129883B2 (en) * | 2004-02-23 | 2006-10-31 | Sony Corporation | Method and apparatus for AD conversion, semiconductor device for detecting distribution of physical quantity, and electronic apparatus |
| JP4928339B2 (en) * | 2007-04-26 | 2012-05-09 | 株式会社アドバンテスト | Arbitrary waveform generator |
-
1979
- 1979-09-28 JP JP12497379A patent/JPS5648716A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58191523A (en) * | 1982-05-04 | 1983-11-08 | Mitsubishi Electric Corp | Drift correcting device |
| JPS59156016A (en) * | 1983-02-25 | 1984-09-05 | Nec Corp | Cmos amplifier circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS625376B2 (en) | 1987-02-04 |
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