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Microchip Technology MCP413x, MCP415x, MCP423x, MCP425x Digital POT ICs

Microchip Technology MCP413x, MCP415x, MCP423x, and MCP425x Digital POT ICs are 7-bit and 8-bit, single or dual SPI digital potentiometers with non-volatile memory. These devices are available with end-to-end resistor values of 5KΩ, 10KΩ, 50kΩ and 100KΩ. These devices offer WiperLock™ Technology which allows the user unlimited reprogramming and locking of the wiper setting. This feature is useful for equipment that requires factory trimming or recalibration. The MCP413x, MCP415x, MCP423x, MCP425x Digital Potentiometers offer a variety of configurations simplifying design while minimizing cost, package size, and pin count.

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
    • 100kΩ
  • Zero Scale to Full-Scale Wiper operation
  • Low Wiper Resistance: 75Ω (typical)
  • Low Tempco:
    • Absolute (Rheostat): 50ppm typical (0°C to +70°C)
    • Ratiometric (Potentiometer): 1ppm 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 (2.5µA typical)
  • High-Voltage Tolerant Digital Inputs: Up to 5V
  • Supports Split Rail Applications
  • Internal weak pull-up on all digital inputs
  • Wide Operating Voltage:
    • 7.0V to 5.5V - Device Characteristics Specified
    • 8.0V to 5.5V - Device Operation
  • Wide Bandwidth (-3dB) Operation:
    • 2MHz (typical) for 5.0kΩ device
  • Extended temperature range (-40°C to +125°C)

Applications

  • Portable electronics level adjustment
  • LCD panel brightness and contrast controls
  • Programmable filters, delays, and time constants
  • Programmable power supplies

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Microchip Technology MCP4017/MCP4018/MCP4019 I2C Digital Potentiometers

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Block Diagram

Block Diagram - Microchip Technology MCP413x, MCP415x, MCP423x, MCP425x Digital POT ICs

Package Options

Mechanical Drawing - Microchip Technology MCP413x, MCP415x, MCP423x, MCP425x Digital POT ICs
Publicado: 2010-03-23 | Actualizado: 2022-03-11