Description

The MCP41XXX and MCP42XXX devices are 256-position, digital potentiometers available in 10 k?, 50 k? and 100 k? resistance versions. The MCP41XXX is a single-channel device and is offered in an 8-pin PDIP or SOIC package. The MCP42XXX contains two independent channels in a 14-pin PDIP, SOIC or TSSOP package. The wiper position of the MCP41XXX/42XXX varies linearly and is controlled via an industry-standard SPI interface. The devices consume

Features

? 256 taps for each potentiometer

? Potentiometer values for 10 k?, 50 k? and 100 k?

? Single and dual versions

? SPI? serial interface (mode 0,0 and 1,1)

? ±1 LSB max INL & DNL

? Low power CMOS technology

? 1 μA maximum supply current in static operation

? Multiple devices can be daisy-chained together (MCP42XXX only)

? Shutdown feature open circuits of all resistors for maximum power savings

? Hardware shutdown pin available on MCP42XXX only

? Single supply operation (2.7V - 5.5V)

? Industrial temperature range: -40°C to +85°C

? Extended temperature range: -40°C to +125°C