1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/iio/afe/current-sense-amplifier.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Current Sense Amplifier
10 - Peter Rosin <peda@axentia.se>
13 When an io-channel measures the output voltage from a current sense
14 amplifier, the interesting measurement is almost always the current
15 through the sense resistor, not the voltage output. This binding
16 describes such a current sense circuit.
20 const: current-sense-amplifier
25 Channel node of a voltage io-channel.
27 sense-resistor-micro-ohms:
28 description: The sense resistance.
31 $ref: /schemas/types.yaml#/definitions/uint32
32 description: Amplifier gain multiplier. The default is <1>.
35 $ref: /schemas/types.yaml#/definitions/uint32
36 description: Amplifier gain divider. The default is <1>.
41 - sense-resistor-micro-ohms
43 additionalProperties: false
48 compatible = "current-sense-amplifier";
49 io-channels = <&tiadc 0>;
51 sense-resistor-micro-ohms = <20000>;
52 sense-gain-mult = <50>;