3 R-2R DAC
3 : R-2R DAC
- Author: htfab
- Description: Basic 8 bit R-2R DAC for IHP
- GitHub repository
- Open in 3D viewer
- Open in Tiny Tapeout Explorer
- Clock: 0 Hz
- Feedback: ✅ 1
How it works
Combines 25 identical resistors (plus 2 dummies) into an 8 bit R-2R resistor ladder DAC.
How to test
Use ui_in[7:0] to set the input in binary. The output analog voltage is available on ua[0].
External hardware
A multimeter or some other device to measure the output voltage (ADC, oscilloscope, etc.)
IO
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | IN[0] | ||
| 1 | IN[1] | ||
| 2 | IN[2] | ||
| 3 | IN[3] | ||
| 4 | IN[4] | ||
| 5 | IN[5] | ||
| 6 | IN[6] | ||
| 7 | IN[7] |
User feedback
- mattvenn: looks good, my grounding setup isn't very good. noticed a discontinuity on MSB Link for more details