mcp3021.rst (1004B)
1Kernel driver MCP3021 2===================== 3 4Supported chips: 5 6 * Microchip Technology MCP3021 7 8 Prefix: 'mcp3021' 9 10 Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21805a.pdf 11 12 * Microchip Technology MCP3221 13 14 Prefix: 'mcp3221' 15 16 Datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/21732c.pdf 17 18 19 20Authors: 21 22 - Mingkai Hu 23 - Sven Schuchmann <schuchmann@schleissheimer.de> 24 25Description 26----------- 27 28This driver implements support for the Microchip Technology MCP3021 and 29MCP3221 chip. 30 31The Microchip Technology Inc. MCP3021 is a successive approximation A/D 32converter (ADC) with 10-bit resolution. The MCP3221 has 12-bit resolution. 33 34These devices provide one single-ended input with very low power consumption. 35Communication to the MCP3021/MCP3221 is performed using a 2-wire I2C 36compatible interface. Standard (100 kHz) and Fast (400 kHz) I2C modes are 37available. The default I2C device address is 0x4d (contact the Microchip 38factory for additional address options).