Features

• MCP413x/415x/423x/425x Digital Potentiometers. The Microchip MCP413x, MCP415x, MCP423x and MCP425x range of devices are Digital Potentiometers that feature a SPI interface. On board is volatile RAM memory. 7-bit (129 steps) and 8-bit (257 steps) versions are available in various RAB resistance options from 5 kΩ to 100 kΩ. Further variants also give the choice between Rheostat and Potentiometer pinouts, Single and Dual Resistor Network options are also available. Features. Zero Scale to Full-Scale Wiper Operation Low Wiper Resistance: 75 Ω (typical) Low Temperature Coefficient: Absolute (Rheostat) 50 ppm, Ratiometric (Potentiometer) 15 ppm (typical) SPI Serial Interface Resistor Network Terminal Disconnect Feature Brown-Out Reset Protection: 1.5 V (typical) Serial Interface Inactive Current: 2.5 μA (typical) High-Voltage Tolerant Digital Inputs: Up to 12.5 V Supports Split Rail Applications Internal Weak Pull-Up on all Digital Inputs Wide Operating Voltage: 1.8 V to 5.5 V Wide Bandwidth (-3 dB) Operation: 2 MHz for 5.0 kΩ device (typical). Model Variants. Potentiometer Wiper Configuration: MCP4131, MCP4151, MCP4231, MCP4251 Rheostat Wiper Configuration: MCP4132, MCP4152, MCP4232, MCP4252 Single Resistor Network: MCP4131, MCP4132, MCP4151, MCP4152 Dual Resistor Network: MCP4231, MCP4232, MCP4251, MCP4252 7-bit, 128 Resistors (129 steps): MCP4131, MCP4132, MCP4231, MCP4232 8-bit, 256 Resistors (257 steps): MCP4151, MCP4152, MCP4251, MCP4252