Microchip | MCP4362-104E/ST

The MCP436X devices are non-volatile, 6-bit (257 wiper steps) digital potentiometers that are programmed/reprogrammed through an SPI compatible interface. The MCP436X devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.

These devices offer WiperLock™ Technology which allows the user unlimited reprogramming and locking of the wiper setting. This is useful for equipment that requires factory trimming or recalibration. The MCP434X family of devices are available with resistor values of 5 K?, 10 K?, 50 k and 100 K?. 

Features:

• Quad Resistor Network
• 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
• Resistor Network Terminal Disconnect Feature via Terminal Control (TCON) Register
• Reset input pin
• Write Protect Feature:
• Hardware Write Protect (WP) Control pin
• Software Write Protect (WP) Configuration bit
• Brown-out reset protection (1.5 V typical)
• Serial Interface Inactive current (2.5 uA 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:
• 2.7 V to 5.5 V - Device Characteristics Specified
• 1.8 V to 5.5 V - Device Operation
• Wide Bandwidth (-3 dB) Operation:
• 2 MHz (typical) for 5.0 kΩ device
• Extended temperature range (-40°C to +125°C)