| description: Microchip MCP4728 12-bit 4-channel DAC |
| |
| compatible: "microchip,mcp4728" |
| |
| include: [dac-controller.yaml, i2c-device.yaml] |
| |
| properties: |
| "#io-channel-cells": |
| const: 1 |
| |
| voltage_reference: |
| type: array |
| required: true |
| description: | |
| DAC voltage reference select. |
| 0 - Vdd |
| 1 - Internal voltage reference (2.048V) |
| Note: array entries correspond to the successive channels |
| |
| power_down_mode: |
| type: array |
| required: true |
| description: | |
| Power-down mode select. |
| 0 - normal mode |
| 1 - Vout is loaded with 1 kOhm resistor to ground |
| 2 - Vout is loaded 100 kOhm resistor to ground |
| 3 - Vout is loaded with 500 kOhm resistor to ground |
| Note: with values bigger than 0 most of channel circuits are powered off |
| Note: array entries correspond to the successive channels |
| |
| gain: |
| type: array |
| default: [0, 0, 0, 0] |
| description: | |
| Gain selection bit. |
| 0 = x1 (gain of 1) |
| 1 = x2 (gain of 2) |
| Note: applicable only when internal Vref is selected |
| Note: array entries correspond to the successive channels |
| |
| io-channel-cells: |
| - output |
