DS1848B-050+T&R

Digital Potentiometers Overview

The DS1848B-050+T&R is a dual temperature-controlled nonvolatile variable resistor in a 16-ball CSBGA package. It integrates two linear taper resistors: one 50kΩ and one 10kΩ, each with 256 positions. The device features an on-chip digital thermometer providing 13-bit resolution over a -40°C to +95°C range. Resistor settings are automatically adjusted via a temperature-addressed look-up table updated every 2°C. Configuration and data access occur through a standard 2-wire serial interface (I2C compatible). The unit operates from 3.0V to 5.5V supplies and includes 128 bytes of user EEPROM.

Digital Potentiometers Feature Summary

• Dual linear variable resistors (50kΩ and 10kΩ) with 256 programmable positions
• Integrated 13-bit digital temperature sensor (-40°C to +95°C)
• Automatic resistance adjustment based on temperature via look-up tables
• Nonvolatile memory for resistor settings and 128-byte user EEPROM

Digital Potentiometers Applications

• Temperature-compensated bias voltage setting
• Current control applications requiring thermal stability
• Multi-dropped serial bus configurations with address selection

Digital Potentiometers Procurement Notes

Verify the specific suffix '+T&R' indicates lead-free status and tape-and-reel packaging as per the manufacturer's ordering information. Confirm the 'B' variant corresponds to the CSBGA package type rather than the TSSOP 'E' variant. Check current availability status as this component series may have limited supply or obsolescence notices.

Digital Potentiometers Selection Notes

Select the DS1848B-050+T&R when a mixed resistance configuration (one 50kΩ and one 10kΩ) is required in a compact surface-mount package. Ensure the application supports the 2-wire serial protocol for initialization and calibration. Verify that the operating environment stays within the specified -40°C to +95°C range for accurate temperature compensation.

Digital Potentiometers Part Context

This part belongs to the DS1848 family of dual temperature-controlled nonvolatile variable resistors. The 'B' designation identifies the 16-ball CSBGA package, while '050' specifies the internal resistor values (50kΩ/10kΩ). It serves as a direct-to-digital solution for replacing analog potentiometers in thermally sensitive circuits.

Digital Potentiometers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The DS1848E-050 offers identical electrical characteristics but uses a 14-pin TSSOP package instead of CSBGA.