MICROCHIP MCP41050T-I/SN Volatile Digital Potentiometer, 50 kohm, Single, SPI, 2.7 V

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