MCP41050T-I/SN

MCP41050T-I/SN is a 50Kohm, single digital potentiometer with SPI™ interface. The wiper position of varies linearly and is controlled via an industry standard SPI interface. The devices consume <lt/>1µA during static operation. A software shutdown feature is provided that disconnects the “A” terminal from the resistor stack and simultaneously connects the wiper to the “B” terminal. During shutdown mode, the contents of the wiper register can be changed and the potentiometer returns from shutdown to the new value. The wiper is reset to the mid-scale position (80h) upon power-up. The RS (active low, reset) pin implements a hardware reset and also returns the wiper to mid-scale. This device operates from a single 2.7 to 5.5V supply and is specified over the industrial temperature ranges.

• 256 taps for each potentiometer, SPI™ serial interface (mode 0,0 and 1,1)
• Low power CMOS technology
• Shutdown feature open circuits of all resistors for maximum power savings
• 800ppm/°C typical Rheostat tempco (VDD = +2.7V to 5.5V, TA = +25°C)
• 8Bits minimum resolution (VDD = +2.7V to 5.5V, TA = +25°C)
• 8Bits minimum monotonicity (VDD = +2.7V to 5.5V, TA = +25°C)
• Typical differential non-linearity is ±1/4LSB (VDD = +2.7V to 5.5V, TA = +25°C)
• Typical integral non-linearity is ±1/4LSB (VDD = +2.7V to 5.5V, TA = +25°C)
• 1MHz typical bandwidth -3dB (VB = 0V, measured at code 80h, output load = 30PF)
• 8 lead plastic SOIC package, industrial temperature range from -40°C to +85°C