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