Commit | Line | Data |
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5510e62a | 1 | Kernel driver MCP3021 |
b04f2f7d | 2 | ===================== |
5510e62a XX |
3 | |
4 | Supported chips: | |
b04f2f7d | 5 | |
5510e62a | 6 | * Microchip Technology MCP3021 |
b04f2f7d | 7 | |
5510e62a | 8 | Prefix: 'mcp3021' |
b04f2f7d | 9 | |
5510e62a | 10 | Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21805a.pdf |
b04f2f7d | 11 | |
592758b1 | 12 | * Microchip Technology MCP3221 |
b04f2f7d | 13 | |
592758b1 | 14 | Prefix: 'mcp3221' |
b04f2f7d | 15 | |
592758b1 | 16 | Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21732c.pdf |
5510e62a | 17 | |
b04f2f7d MCC |
18 | |
19 | ||
592758b1 | 20 | Authors: |
b04f2f7d MCC |
21 | |
22 | - Mingkai Hu | |
23 | - Sven Schuchmann <schuchmann@schleissheimer.de> | |
5510e62a XX |
24 | |
25 | Description | |
26 | ----------- | |
27 | ||
592758b1 SS |
28 | This driver implements support for the Microchip Technology MCP3021 and |
29 | MCP3221 chip. | |
5510e62a XX |
30 | |
31 | The Microchip Technology Inc. MCP3021 is a successive approximation A/D | |
592758b1 SS |
32 | converter (ADC) with 10-bit resolution. The MCP3221 has 12-bit resolution. |
33 | ||
34 | These devices provide one single-ended input with very low power consumption. | |
35 | Communication to the MCP3021/MCP3221 is performed using a 2-wire I2C | |
36 | compatible interface. Standard (100 kHz) and Fast (400 kHz) I2C modes are | |
37 | available. The default I2C device address is 0x4d (contact the Microchip | |
38 | factory for additional address options). |