DS1848E-050+

Digital Potentiometers Overview

The DS1848E-050+ is a dual temperature-controlled nonvolatile variable resistor IC from Analog Devices/Maxim Integrated. It integrates one 50kΩ and one 10kΩ linear taper, 256-position digitally controlled resistor alongside a direct-to-digital temperature sensor. Resistor settings are determined by a temperature-addressed look-up table that assigns unique values for every 2°C increment across the -40°C to +95°C operating range. The device operates on a 3V to 5.5V supply and communicates via a standard 2-wire serial interface (SDA/SCL). It includes 128 bytes of user EEPROM and stores settings in nonvolatile memory.

Digital Potentiometers Feature Summary

• Dual linear variable resistors: one 50kΩ and one 10kΩ, each with 256 positions
• Integrated digital temperature sensor with 13-bit output over 2-wire interface
• Temperature-compensated resistance via look-up tables updated every 2°C
• Nonvolatile storage for resistor settings and 128 bytes of user EEPROM

Digital Potentiometers Applications

• Setting and temperature-compensating bias voltages and currents
• Control applications requiring minimal external circuitry
• Precision analog signal conditioning with thermal drift compensation

Digital Potentiometers Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature grade (-40°C to +95°C) and '+' denotes lead-free compliance per the manufacturer's ordering information. Confirm package type is 14-pin TSSOP. Check current availability status as this component may be subject to lifecycle changes or limited distribution.

Digital Potentiometers Selection Notes

Select the DS1848E-050+ when a mixed resistance configuration (50kΩ and 10kΩ) is required within a single package. Ensure the application supports the 2-wire serial protocol for accessing temperature data and updating look-up tables. Verify that the programming temperature range (0°C to +70°C) aligns with system capabilities during configuration phases.

Digital Potentiometers Part Context

This part belongs to the DS1848 family of dual temperature-controlled NV variable resistors. The '050' designation specifically differentiates it from the DS1848-010, which contains two 10kΩ resistors. Both variants share the same pinout, interface, and core functionality but differ in the resistance value of the first channel.

Digital Potentiometers Replacement Considerations

The DS1848B-050 is available in a 16-ball CSBGA package with identical electrical specifications. Direct pin-compatible replacements are not listed; redesigning for the BGA package would be necessary if switching form factors.