Wednesday, October 31, 2012
CCD vs CMOS sensors
Global vs rolling shutter.
PDF.
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99% BAD HARDWARE WEEK:
PDF.
| Feature | CCD | CMOS |
| Signal out of pixel | Electron packet | Voltage |
| Signal out of chip | Voltage (analog) | Bits (digital) |
| Signal out of camera | Bits (digital) | Bits (digital) |
| Fill factor | High | Moderate |
| Amplifier mismatch | N/A | Moderate |
| System Noise | Low | Moderate |
| System Complexity | High | Low |
| Sensor Complexity | Low | High |
| Camera components | Sensor + multiple support chips + lens | Sensor + lens possible, but additional support chips common |
| Relative R&D cost | Lower | Higher |
| Relative system cost | Depends on Application | Depends on Application |
| Performance | CCD | CMOS |
| Responsivity | Moderate | Slightly better |
| Dynamic Range | High | Moderate |
| Uniformity | High | Low to Moderate |
| Uniform Shuttering | Fast, common | Poor |
| Uniformity | High | Low to Moderate |
| Speed | Moderate to High | Higher |
| Windowing | Limited | Extensive |
| Antiblooming | High to none | High |
| Biasing and Clocking | Multiple, higher voltage | Single, low-voltage |
99% BAD HARDWARE WEEK:
THIS LINK posted by Joseph Bell : 8:11 AM
