DS1848B-050/TR

Digital Potentiometers Overview

The DS1848B-050/TR is a dual digital potentiometer IC from the DS1848B series, manufactured by Analog Devices Inc./Maxim Integrated. It features two independent variable resistors, each with a resistance of 50 kOhms and 256 taps for linear taper adjustment. The device utilizes a non-volatile arc brush memory to retain settings without power. Communication is handled via a serial 2-wire interface. It operates on supply voltages of 3.3 V or 5 V, drawing approximately 1 mA. The component supports an operating temperature range from -40°C to +95°C and is housed in a CSBGA-16 package.

Digital Potentiometers Feature Summary

• Dual channel configuration with 50 kOhm resistance per potentiometer
• Non-volatile memory retains wiper position after power loss
• Serial 2-wire digital interface for control
• Integrated temperature sensor functionality

Digital Potentiometers Applications

• Audio volume control systems requiring persistent settings
• Industrial process control loops needing adjustable gain
• Calibration circuits for sensor signal conditioning

Digital Potentiometers Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status as it varies by manufacturing batch and region. Check for obsolescence notices given the product lifecycle status of similar DS1848 variants. Ensure the supplier provides valid traceability documentation for the analog devices manufacturer.

Digital Potentiometers Selection Notes

Select this model specifically for its 50 kOhm resistance value, distinguishing it from the 10 kOhm DS1848B-010 variant. The CSBGA-16 package requires appropriate PCB footprint design. Verify that the 2-wire serial interface compatibility matches the host microcontroller's available pins. Consider the thermal management requirements for the +95°C maximum junction temperature limit.

Digital Potentiometers Part Context

This component belongs to the DS1848 family of temperature-controlled non-volatile digital potentiometers. It shares architectural similarities with the DS1848E but differs in interface type and package. The 'B' designation typically denotes specific performance characteristics within the Maxim Integrated portfolio. It serves as a solid-state replacement for mechanical potentiometers in applications demanding durability and data retention.

Digital Potentiometers Replacement Considerations

Direct pin-compatible substitutes may include other DS1848 series members like the DS1848B-010 if resistance values are adaptable. Cross-reference with DS1848E series only if interface differences (I2C vs Serial) are acceptable. Verify package dimensions for CSBGA-16 against potential alternative BGA packages.