522 ADC for CCDmos3D pixel
522 : ADC for CCDmos3D pixel
- Author: WJ toren
- Description: converts analog pixel signals in digital output signals.
- GitHub repository
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- Clock: 1000 Hz
How it works
binary search adc, 8bits
How to test
The circuit generates it's own input signal and gives the output of this to first analog pin, and feeds this signal into the ADC and is converted to a digital signal, which is converted again by a DAC to an analog signal that is connected to the second analog output pin. Both analog output signals are compared and must be equal.
External hardware
Power source for the chip, plus a scope to measure both output signals.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | b0 | ||
| 1 | b1 | ||
| 2 | b2 | ||
| 3 | b3 | ||
| 4 | b4 | ||
| 5 | b5 | ||
| 6 | b6 | ||
| 7 | b7 |
Analog pins
ua | PCB Pin | Internal index | Description |
|---|---|---|---|
| 0 | T | 9 | analog_out |
| 1 | U | 8 | analog_test |