MCP4331-502E/ST

The MCP4331 devices are non-volatile, 7-bit (129 wiper steps) digital potentiometers that are programmed/reprogrammed through an SPI compatible interface. The MCP4331 devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count. The MCP4331 family of devices are available with resistor values of 5K, 10K, 50k and 100K

• Quad Resistor Network
• Potentiometer or Rheostat Configuration Options
• Resistor Network Resolution: - 7-bit: 128 Resistors (129 Taps) - 8-bit: 256 Resistors (257 Taps)
• RAB Resistances Options of: - 5kO - 10 kO - 50 kO - 100 kO
• Zero Scale to Full Scale Wiper Operation
• Low Wiper Resistance: 75 O (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 and 1,1): - High-Speed Read/Writes to wiper registers
• Resistor Network Terminal Disconnect Feature via Terminal Control (TCON) Register
• Reset Input Pin
• Brown-out Reset Protection (1.5V typical)
• Serial Interface Inactive Current (2.5 µA 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