MICROCHIP MCP4251-103E/ML

The MCP41XX and MCP42XX devices offer a wide range of product offerings using an SPl interface. This family of devices support 7-bit and 8-bit resistor networks, and Potentiometer and Rheostat pinouts.

• 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, 100kΩ
• Zero Scale to Full-Scale Wiper operation
• Low Wiper Resistance: 75Ω (typical)
• Low Tempco:
  • Absolute (Rheostat): 50 ppm typical, -40°C to 70°C
  • Ratiometric (Potentiometer): 15 ppm typical
• SPI Serial Interface (10MHz, modes 0,0 & 1,1)
  • High-Speed Read/Writes to wiper registers
  • SDI/SDO multiplexing (MCP41X1 only)
• Resistor Network Terminal Disconnect Feature via:
  • Shutdown pin (SHDN)
  • Terminal Control (TCON) Register
• Brown-out reset protection (1.5V typical)
• Serial Interface Inactive current (2.5 μA 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 (-3 dB) Operation:
  • 2 MHz (typical) for 5.0kΩ device
• Extended temperature range (-40°C to +125°C)