MCP4231

MCP414X/416X/424X/426X 7/8-Bit Single/Dual SPI Digital POT with Non-Volatile Memory 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 Non-volatile Memory - Automatic Recall of Saved Wiper Setting - WiperLock™ Technology SPI serial interface (10 MHz, modes 0,0 & 1,1) - High-Speed Read/Writes to wiper registers - Read/Write to Data EEPROM registers - Serially enabled EEPROM write protect - SDI/SDO multiplexing (MCP41X1 only) Resistor Network Terminal Disconnect Feature via: - Shutdown pin (SHDN) - Terminal Control (TCON) Register Write Protect Feature: - Hardware Write Protect (WP) Control pin - Software Write Protect (WP) Configuration bit 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 (-3dB) Operation: - 2 MHz (typical) for 5.0 kΩ device Extended temperature ran...