MAX5479EUD+

$6.46

Description：IC DGT POT 100KOHM 256TP 14TSSOP
Series：-

SKU:9394a36ac2c2 Category: Digital Potentiometers Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC DGT POT 100KOHM 256TP 14TSSOP
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
Taper：Linear
Configuration：Potentiometer
Number of Circuits：2
Number of Taps：256
Resistance (Ohms)：100k
Interface：I2C
Memory Type：Non-Volatile
Voltage - Supply：2.7V ~ 5.25V
Features：Selectable Address
Tolerance：±25%
Temperature Coefficient (Typ)：70ppm/°C
Mounting Type：Surface Mount
Supplier Device Package：14-TSSOP
Package / Case：14-TSSOP (0.173", 4.40mm Width)
Operating Temperature：-40°C ~ 85°C
Resistance - Wiper (Ohms) (Typ)：325
Grade：-
Qualification：-

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MAX5479EUD+

Overview

The MAX5479EUD+ is a dual, nonvolatile, linear-taper digital potentiometer featuring an I2C-compatible serial interface. It provides two independent potentiometers, each with 256 tap positions and a nominal end-to-end resistance of 100kΩ. The device operates on a single supply voltage ranging from +2.7V to +5.25V. Key electrical characteristics include a maximum static supply current of 1µA, ±1 LSB integral nonlinearity (INL), and ±0.5 LSB differential nonlinearity (DNL) in voltage-divider mode. The unit utilizes internal EEPROM for wiper position storage, ensuring data retention for up to 50 years at elevated temperatures.

Feature Summary

Dual-channel architecture with 256 tap positions per potentiometer
Nonvolatile EEPROM memory for power-on wiper recall
Fast-mode I2C-compatible serial interface supporting up to 400kbps
Low temperature coefficient: 70ppm/°C end-to-end and 10ppm/°C ratiometric

Applications

Mechanical potentiometer replacement
Low-drift programmable-gain amplifier circuit configurations
Liquid-crystal display (LCD) contrast control

Procurement Notes

Verify the package marking code corresponds to '—' for the TSSOP variant. Confirm the suffix '+T' indicates tape-and-reel packaging if reel quantity is required. Ensure the ordering part number matches the specific resistance value (100kΩ) and pin configuration (14-TSSOP).

Selection Notes

Select the MAX5479EUD+ when a 100kΩ end-to-end resistance is required. Choose this model over the MAX5477 (10kΩ) or MAX5478 (50kΩ) based on impedance matching needs. Verify that the application supports the 2-wire I2C interface and requires dual-channel adjustment within the -40°C to +85°C operating range.

Part Context

This component belongs to the MAX5477/MAX5478/MAX5479 family of nonvolatile digital potentiometers. The EUD+ designation specifically identifies the 14-pin Thin Small Outline Package (TSSOP) variant with lead-free/RoHS-compliant construction. It shares functional similarities with the ETE+ TQFN variants but differs in physical footprint and thermal characteristics.