MCP4017T-503E/LT Devices Electronic Features

PotentiometerorRheostatconfigurationoptions

7-bit:ResistorNetworkResolution

-127 Resistors (128 Steps)

ZeroScaletoFullScaleWiperoperation

RABResistances:5kΩ,10kΩ,50kΩ,or100kΩ

LowWiperResistance:100Ω(typical)

LowTempco:

– Absolute(Rheostat):50ppmtypical (0°C to 70°C)

– Ratiometric(Potentiometer):10ppmtypical

SimpleI2CProtocolwithread&writecommands

Brown-outresetprotection(1.5Vtypical)

Power-onDefaultWiperSetting(Mid-scale)

Low-PowerOperation:

– 2.5μAStaticCurrent(typical)

WideOperatingVoltageRange:

– 2.7Vto5.5V-DeviceCharacteristics Specified

– 1.8Vto5.5V-DeviceOperation

Package Types

WideBandwidth(-3dB)Operation: – 2MHz(typical)for5.0kΩdevice

Extendedtemperaturerange(-40°Cto+125°C)

Verysmallpackage(SC70)

Leadfree(Pb-free)package

Applications Examples

Digital potentiometers have a multitude of practical uses in modern electronic circuits. The most popular uses include precision calibration of set point thresholds, sensor trimming, LCD bias trimming, audio attenuation, adjustable power supplies, motor control overcurrent trip setting, adjustable gain amplifiers and offset trimming. The MCP4017/18/19 devices can be used to replace the common mechanical trim pot in applications where the operating and terminal voltages are within CMOS process limitations (VDD = 2.7V to 5.5V).

3.1 Set Point Threshold Trimming

3.2 Operational Amplifier Applications

3.3Temperature Sensor Applications

3.4Wheatstone Bridge Trimming