Description
The MCP41XX and MCP42XX devices offer a wide range of product offerings using an SPI interface. This family of devices support 7-bit and 8-bit resistor networks, and Potentiometer and Rheostat pinouts.

FEATUREs
• Single or Dual Resistor Network options
• Potentiometer or Rheostat configuration options
• Resistor Network Resolution
    - 7-bit: 128 Resistors (129 Steps)
    - 8-bit: 256 Resistors (257 Steps)
• RAB Resistances options of:
    - 5 kΩ
    - 10 kΩ
    - 50 kΩ
    - 100 kΩ
• Zero Scale to Full-Scale Wiper operation
• Low Wiper Resistance: 75Ω (typical)
• Low Tempco:
    - Absolute (Rheostat): 50 ppm typical (0°C to 70°C)
    - Ratiometric (Potentiometer): 15 ppm typical
• SPI Serial Interface (10 MHz, modes 0,0 & 1,1)
    - High-Speed Read/Writes to wiper registers
    - SDI/SDO multiplexing (MCP41X1 only)
• Resistor Network Terminal Disconnect Feature via:
    - Shutdown pin (SHDN)
    - Terminal Control (TCON) Register
• Brown-out reset protection (1.5V typical)
• Serial Interface Inactive current (2.5 uA typical)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Supports Split Rail Applications
• Internal weak pull-up on all digital inputs
• Wide Operating Voltage:
    - 2.7V to 5.5V - Device Characteristics Specified
    - 1.8V to 5.5V - Device Operation
• Wide Bandwidth (-3 dB) Operation:
    - 2 MHz (typical) for 5.0 kΩ device
• Extended temperature range (-40°C to +125°C)