MCP4431

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.

Features
  • Quad Resistor Network
  • Potentiometer or Rheostat configuration options
  • Resistor Network Resolution: 7-bit – 128 Resistors (129 Taps)
  • 7-bit – 128 Resistors (129 Taps)
  • Four RAB Resistances options: 5kΩ 10kΩ 50kΩ 100kΩ
  • 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
  • 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
  • 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
  • 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
Parameter
Parameter Name Value Value
Temp. Range (°C) -40 to +125 -40 to +125
Volatile / Non Volatile Volatile Volatile
Number of Taps 129 129
Resistance (ohms) K 5, 10, 50, 100 5, 10, 50, 100
# per Package 4 4
INL (Max) 1 1
DNL (Max) 0.5 0.5
Interface I²C™ I²C™
Documents
MCP4431 Data SheetData Sheets11/18/20105954KB
AN1080 - Understanding Digital Potentiometers Resistor VariationsAppNote07/27/2009565KB
AN1316 - Using Digital Potentiometers for Programmable Amplifier GainAppNote04/14/2010441KB
AN219 - Comparing Digital Potentiometers to Mechanical PotentiometersAppNote11/20/2000133KB
AN691 - Optimizing the Digital Potentiometer in Precision CircuitsAppNote05/08/2001240KB
AN692 - Using a Digital Potentiometer to Optimize a Precision Single Supply Photo DetectAppNote02/23/2001253KB
AN737 - Using Digital Potentiometers to Design Low Pass Adjustable FiltersAppNote02/24/2004277KB
Implementing a 10-Bit Digi Pot Using a Quad 8-Bit Digi PotTech Briefs01/10/2013360KB
Analog Solutions for Automotive Applications Design GuideBrochures12/08/2009284KB
Digital Potentiometer Design GuideDesign Guides01/03/2011706KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP4431-103E/ML20QFN-40C to +125CTUBE1.351.131.020.990.98
MCP4431-103E/ST20TSSOP-40C to +125CTUBE1.351.131.020.990.98
MCP4431-104E/ML20QFN-40C to +125CTUBE1.351.131.020.990.98
MCP4431-104E/ST20TSSOP-40C to +125CTUBE1.351.131.020.990.98
MCP4431-502E/ML20QFN-40C to +125CTUBE1.351.131.020.990.98
MCP4431-502E/ST20TSSOP-40C to +125CTUBE1.351.131.020.990.98
MCP4431-503E/ML20QFN-40C to +125CTUBE1.351.131.020.990.98
MCP4431-503E/ST20TSSOP-40C to +125CTUBE1.351.131.020.990.98
MCP4431T-103E/ML20QFN-40C to +125CT/R1.351.131.020.990.98
MCP4431T-103E/ST20TSSOP-40C to +125CT/R1.351.131.020.990.98
MCP4431T-104E/ML20QFN-40C to +125CT/R1.351.131.020.990.98
MCP4431T-104E/ST20TSSOP-40C to +125CT/R1.351.131.020.990.98
MCP4431T-502E/ML20QFN-40C to +125CT/R1.351.131.020.990.98
MCP4431T-502E/ST20TSSOP-40C to +125CT/R1.351.131.020.990.98
MCP4431T-503E/ML20QFN-40C to +125CT/R1.351.131.020.990.98
MCP4431T-503E/ST20TSSOP-40C to +125CT/R1.351.131.020.990.98
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP4431-502E/ST0.0737000.17567620TSSOP4.4mmMatte Tine3
MCP4431-103E/ST0.0737000.17567620TSSOP4.4mmMatte Tine3
MCP4431T-502E/ST0.0737000.20000020TSSOP4.4mmMatte Tine3
MCP4431T-103E/ST0.0737000.20000020TSSOP4.4mmMatte Tine3
MCP4431-503E/ST0.0737000.17567620TSSOP4.4mmMatte Tine3
MCP4431T-503E/ST0.0737000.20000020TSSOP4.4mmMatte Tine3
MCP4431-104E/ST0.0737000.17567620TSSOP4.4mmMatte Tine3
MCP4431T-104E/ST0.0737000.20000020TSSOP4.4mmMatte Tine3
MCP4431-502E/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP4431T-502E/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP4431-103E/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP4431T-103E/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP4431-503E/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
MCP4431T-503E/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP4431T-104E/ML0.0431000.21212120QFN4x4x0.9mmMatte Tine3
MCP4431-104E/ML0.0431000.07692320QFN4x4x0.9mmMatte Tine3
Datasheet
MCP4431 Data Sheet MCP4431
Other
AN219 MCP4662
AN691 MCP4651
AN692 MCP4662
AN737 MCP4662
Analog Solutions for Automotive Applications Design Guide MCP2022
AN1316 MCP46XXEV
Digital Potentiometer Design Guide SOIC8EV
Implementing a 10-Bit Digi Pot Using a Quad 8-Bit Digi Pot MCP4661
AN1316 Excel Files MCP46XXEV
AN1080 MCP46XXEV
Products 产品服务
Manufacturers 生产厂家
Sales 联系购买
©1993 - 2025 BDTIC