MCP41HV51-103E/ST

MCP41HV51-103E/ST is a single digital potentiometer (8bit) with an SPI interface and volatile memory. The analog power rail allows high voltage on the resistor network terminal pins. The analog voltage range is determined by the V+ and Voltages. The maximum analog voltage is +36V, while the operating analog output minimum specifications are specified from either 10V or 20V. As the analog supply voltage becomes smaller, the analog switch resistances increase, which affects certain performance specifications. The device also has a Write Latch (active-low WLAT) function, which will inhibit the volatile wiper register from being updated (latched) with the received data until the active-low WLAT pin is low. This allows the application to specify a condition where the volatile wiper register is updated (such as zero crossing).

• Operating voltage range from 10 to 36VAC (analog), 2.7 to 5.5VDC, 1.8 to 5.5VDC (DGND<gt/>V- + 0.9V)
• Single resistor network, SPI control interface
• 7Fh POR wiper setting, 255 number of RS, 256 number of taps
• Resolution is 256Taps (8bit, VL = 5.5V, TA = +25°C)
• Resistor network supply voltage is 36V max (delta voltage between V+ and V-, VL = 5.5V, TA = +25°C)
• Nominal resistance temperature coefficient is 50ppm/°C typ (TA = -40°C to +85°C)
• SPI serial interface (10MHz, modes 0,0 and 1,1)
• Shutdown pin (SHDN, active low), terminal Control (TCON) register
• Write latch (WLAT active low) pin to control update of volatile wiper register (zero crossing)
• 14 lead TSSOP package, extended temperature range from -40°C to +125°C