484 R2R DAC
484 : R2R DAC
- Author: Wallie Everest
- Description: Duplicate of 8-bit DAC from Matt Venn
- GitHub repository
- Open in 3D viewer
- Clock: 0 Hz
How it works
Please refer to Matt Venn's R2R DAC description, as this is a clone of that project.
How to test
Set the external data input high to provide the DAC with external data.
Then drive the 8 inputs and observe the analog output.
External hardware
A multimeter to measure the output voltage on analog pin 0.
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | bit 0 | count zero | external data |
| 1 | bit 1 | load divider | |
| 2 | bit 2 | ||
| 3 | bit 3 | ||
| 4 | bit 4 | ||
| 5 | bit 5 | ||
| 6 | bit 6 | ||
| 7 | bit 7 |
Analog pins
ua | PCB Pin | Internal index | Description |
|---|---|---|---|
| 0 | A4 | 4 | DAC output |