The MCP4017/8/9 devices offer a wide range of product offerings using an I2C™Compatible interface. This family of devices support a 7-bit resistor network, volatile memory configuration, and potentiometer and rheostat pinouts. This device family is offered in miniature 5 and 6 lead SC-70 packaging. 

Features:

•  Potentiometer or Rheostat configuration options
• 7-bit: Resistor Network Resolution
  • 127 Resistors (128 Steps)
• Zero Scale to Full Scale Wiper operation
• RAB Resistances: 5kohm, 10kohm, 50kohm? or 100kohm
• Low Wiper Resistance: 100ohm (typical)
• Low Tempco:
  • Absolute (Rheostat): 50 ppm typical(0°C to 70°C)
  • Ratiometric (Potentiometer): 15 ppm typical
• Simple I²C™Compatible Protocol with read & write commands
• Brown-out reset protection (1.5V typical)
• Power-on Default Wiper Setting (Mid-scale)
• Low-Power Operation: 2.5 µA Static Current (typ)
• Wide Operating Voltage Range:
  • 2.7V to 5.5V - Device Characteristics Specified
  • 1.8V to 5.5V - Device Operation

Download:

• Datasheet
• Tutorial