The MCP443X devices are quad-channel, volatile, 7-bit (129 wiper steps) digital potentiometers with an I2C compatible interface. The MCP443X family is available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer a variety of configurations simplifying design while minimizing cost, package size and pin count.

  Quad Resistor Network

  Potentiometer or Rheostat configuration options

  Resistor Network Resolution:

  7-bit – 128 Resistors (129 Taps)

  Four RAB Resistances options:

  5kΩ

  10kΩ

  50kΩ

  100kΩ

  Zero-scale to Full-scale Wiper Operation

  Low Wiper Resistance – 75Ω typical

  Low Tempco:

  Absolute (Rheostat) – 50 ppm typical (0°-70°C)

  Ratiometric (Potentiometer) – 15 ppm typical

  I2C™Compatible Serial Interface Support:

  100 kHz

  400 kHz

  3.4 MHz

  Serial Protocol Allows High-Speed Read/Write to Wiper

  Resistor Network Terminal Disconnect Feature via Terminal Control (TCON) Register

  Reset Input Pin

  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

  Wide Operating Voltage:

  2.7V to 5.5V - Device Characteristics Specified

  1.8V to 5.5V - Device Operation

  Wide Bandwidth (-3 dB) Operation – 2 MHz typical for 5.0Ω Device

  Extended Temperature Range (-40°C to +125°C)

  Package Types: TSSOP-14