JPS6478516A - Latch comparator - Google Patents
Latch comparatorInfo
- Publication number
- JPS6478516A JPS6478516A JP62234847A JP23484787A JPS6478516A JP S6478516 A JPS6478516 A JP S6478516A JP 62234847 A JP62234847 A JP 62234847A JP 23484787 A JP23484787 A JP 23484787A JP S6478516 A JPS6478516 A JP S6478516A
- Authority
- JP
- Japan
- Prior art keywords
- change
- vclk
- trs
- positive feedback
- hysteresis
- 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
- Manipulation Of Pulses (AREA)
Abstract
PURPOSE:To reduce the hysteresis by providing a positive feedback circuit between clock terminals of noninverting and inverting phases. CONSTITUTION:The positive feedback circuit consists of transistors(TRs) Q9, Q11, a diode D, a constant current source 22 and a resistor RF. A signal at a drain of the TR Q9 is given to a gate of a TR Q6 to apply positive feedback and a current switching characteristic of clock differential pairs composed of TRs Q5, Q6 is improved. That is, in applying a voltage change of V5 to VCLK of the clock signal terminal 3, the change VCLK in the gate voltage of the TRs Q5, Q6 is expressed as VCLK= V5+ I9.RF, where I9 is the current change in the TR Q9 and no loss exists in the TR Q11 and the diode D. Thus, the change is increased by the I9.RF and the hysteresis is reduced considerably so as to attain steep changeover.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234847A JPS6478516A (en) | 1987-09-21 | 1987-09-21 | Latch comparator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234847A JPS6478516A (en) | 1987-09-21 | 1987-09-21 | Latch comparator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478516A true JPS6478516A (en) | 1989-03-24 |
Family
ID=16977293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62234847A Pending JPS6478516A (en) | 1987-09-21 | 1987-09-21 | Latch comparator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478516A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07336199A (en) * | 1994-06-14 | 1995-12-22 | Nec Corp | Comparator |
-
1987
- 1987-09-21 JP JP62234847A patent/JPS6478516A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07336199A (en) * | 1994-06-14 | 1995-12-22 | Nec Corp | Comparator |
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