480 Dempsey-Gorman DAC
480 : Dempsey-Gorman DAC
- Author: htfab
- Description: 4+4 bit segmented DAC made from two resistor ladders
- GitHub repository
- Open in 3D viewer
- Clock: 0 Hz
How it works
Implements the Dempsey-Gorman DAC architecture, combining two resistor ladder DACs into a segmented DAC without voltage buffering.
See more details in Analog's MT-016 tutorial.
How to test
Set the desired voltage using ui_in[7:0].
The analog output should map this 8-bit value to the 0V to 3.3V voltage range.
External hardware
Multimeter or any other device that can measure voltages (oscilloscope, microcontroller with ADC, 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] |
Analog pins
ua | PCB Pin | Internal index | Description |
|---|---|---|---|
| 0 | A3 | 3 | VOUT |