JPS6448514A - Switched capacitor circuit - Google Patents
Switched capacitor circuitInfo
- Publication number
- JPS6448514A JPS6448514A JP20444487A JP20444487A JPS6448514A JP S6448514 A JPS6448514 A JP S6448514A JP 20444487 A JP20444487 A JP 20444487A JP 20444487 A JP20444487 A JP 20444487A JP S6448514 A JPS6448514 A JP S6448514A
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- voltage
- signal charge
- clock feed
- auxiliary
- 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
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE:To reduce the error voltage by using an auxiliary capacity provided in parallel with a capacitor of the main body and the main capacitor so as to branch an error voltage due to clock feed-through having voltage dependancy. CONSTITUTION:Since an auxiliary capacitor D is provided in parallel with a capacitor A storing an input signal charge, the clock feed-through caused by a switch B is branched into two capacitors A, D. On the other hand, the input signal charge stored in the capacitor A depends on the input voltage fed to the capacitor A itself and independently of the presence of the auxiliary capacitor D. Thus, the ratio with respect to the signal charge of the clock feed-through flowing to the capacitor A is reduced remarkably. Thus, the effect of the error voltage superimposed on the output signal onto the input voltage is reduced and the highly accurate circuit design is realized by eliminating the fluctuation of the frequency characteristic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20444487A JPS6448514A (en) | 1987-08-18 | 1987-08-18 | Switched capacitor circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20444487A JPS6448514A (en) | 1987-08-18 | 1987-08-18 | Switched capacitor circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6448514A true JPS6448514A (en) | 1989-02-23 |
Family
ID=16490628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20444487A Pending JPS6448514A (en) | 1987-08-18 | 1987-08-18 | Switched capacitor circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6448514A (en) |
-
1987
- 1987-08-18 JP JP20444487A patent/JPS6448514A/en active Pending
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