1ADS1015 (I2C)
2
3This device is a 12-bit A-D converter with 4 inputs.
4
5The inputs can be used single ended or in certain differential combinations.
6
7For configuration all possible combinations are mapped to 8 channels:
8  0: Voltage over AIN0 and AIN1.
9  1: Voltage over AIN0 and AIN3.
10  2: Voltage over AIN1 and AIN3.
11  3: Voltage over AIN2 and AIN3.
12  4: Voltage over AIN0 and GND.
13  5: Voltage over AIN1 and GND.
14  6: Voltage over AIN2 and GND.
15  7: Voltage over AIN3 and GND.
16
17Each channel can be configured individually:
18 - pga is the programmable gain amplifier (values are full scale)
19    0: +/- 6.144 V
20    1: +/- 4.096 V
21    2: +/- 2.048 V (default)
22    3: +/- 1.024 V
23    4: +/- 0.512 V
24    5: +/- 0.256 V
25 - data_rate in samples per second
26    0: 128
27    1: 250
28    2: 490
29    3: 920
30    4: 1600 (default)
31    5: 2400
32    6: 3300
33
341) The /ads1015 node
35
36  Required properties:
37
38   - compatible : must be "ti,ads1015"
39   - reg : I2C bus address of the device
40   - #address-cells : must be <1>
41   - #size-cells : must be <0>
42
43  The node contains child nodes for each channel that the platform uses.
44
45  Example ADS1015 node:
46
47    ads1015@49 {
48	    compatible = "ti,ads1015";
49	    reg = <0x49>;
50	    #address-cells = <1>;
51	    #size-cells = <0>;
52
53	    [ child node definitions... ]
54    }
55
562) channel nodes
57
58  Required properties:
59
60   - reg : the channel number
61
62  Optional properties:
63
64   - ti,gain : the programmable gain amplifier setting
65   - ti,datarate : the converter data rate
66
67  Example ADS1015 channel node:
68
69    channel@4 {
70	    reg = <4>;
71	    ti,gain = <3>;
72	    ti,datarate = <5>;
73    };
74