# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id:
http://devicetree.org/schemas/iio/adc/ti,ads1015.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: TI ADS1015/ADS1115 4 channel I2C analog to digital converter
maintainers:
- Daniel Baluta <daniel.baluta@nxp.com>
description: |
Datasheet at:
https://www.ti.com/lit/gpn/ads1015
Supports both single ended and differential channels.
properties:
compatible:
enum:
- ti,ads1015
- ti,ads1115
- ti,tla2021
- ti,tla2024
reg:
maxItems: 1
interrupts:
maxItems: 1
"#address-cells":
const: 1
"#size-cells":
const: 0
"#io-channel-cells":
const: 1
required:
- compatible
- reg
- "#address-cells"
- "#size-cells"
additionalProperties: false
patternProperties:
"^channel@[0-7]+$":
type: object
additionalProperties: false
description:
Child nodes needed for each channel that the platform uses.
properties:
reg:
description: |
0: Voltage over AIN0 and AIN1.
1: Voltage over AIN0 and AIN3.
2: Voltage over AIN1 and AIN3.
3: Voltage over AIN2 and AIN3.
4: Voltage over AIN0 and GND.
5: Voltage over AIN1 and GND.
6: Voltage over AIN2 and GND.
7: Voltage over AIN3 and GND.
items:
- minimum: 0
maximum: 7
ti,gain:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 5
description: |
pga is the programmable gain amplifier (values are full scale)
0: +/- 6.144 V
1: +/- 4.096 V
2: +/- 2.048 V (default)
3: +/- 1.024 V
4: +/- 0.512 V
5: +/- 0.256 V
ti,datarate:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 7
description: |
Data acquisition rate in samples per second for ADS1015, TLA2024
0: 128
1: 250
2: 490
3: 920
4: 1600 (default)
5: 2400
6: 3300
7: 3300
Data acquisition rate in samples per second for ADS1115
0: 8
1: 16
2: 32
3: 64
4: 128 (default)
5: 250
6: 475
7: 860
required:
- reg
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
adc@49 {
compatible = "ti,ads1015";
reg = <0x49>;
#address-cells = <1>;
#size-cells = <0>;
channel@0 {
reg = <0>;
};
channel@4 {
reg = <4>;
ti,gain = <3>;
ti,datarate = <5>;
};
};
};
...
