Comparison circuit including input sampling capacitor and image sensor including the same
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United States of America Patent
Stats
-
Nov 26, 2019
Grant Date -
Feb 1, 2018
app pub date -
Jul 28, 2017
filing date -
Jul 28, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A comparison circuit that includes an input sampling capacitor and an image sensor including the same are provided. The comparison circuit includes an amplifier configured to receive a pixel signal and a ramp signal to perform a correlated double sampling operation, a first pixel capacitor connected to the amplifier through a first floating node and configured to transmit the pixel signal, a first ramp capacitor connected to the amplifier through a second floating node and configured to transmit the ramp signal, a second pixel capacitor connected in parallel to the first pixel capacitor, and a second ramp capacitor connected in parallel to the first ramp capacitor, wherein the second pixel capacitor is formed between the first floating node and first peripheral routing lines, and the second ramp capacitor is formed between the second floating node and second peripheral routing lines.
First Claim
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Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- H03K Class
- 27.32 % this patent is cited more than
- 6 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 26, 2027 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 26, 2031 |
