MCP4631 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:
- 5kΩ
- 10kΩ
- 50kΩ
- 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
• I2C Serial interface
- 100 kHz, 400 kHz and 3.4 MHz support
• Serial protocol allows:
- High-Speed Read/Write to wiper
- Increment/Decrement of wiper
• Resistor Network Terminal Disconnect Feature
via the 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
• 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 range (-40°C to +125°C)
