AD5248BRM100

Digital Potentiometers Overview

The AD5248BRM100 is a dual-channel, 8-bit digital potentiometer from Analog Devices. It features two independent variable resistors with an end-to-end resistance of 100 kΩ and 256 tap positions. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, consuming a maximum supply current of 6 µA. It utilizes an I²C-compatible serial interface for full read/write access to the wiper registers. Key electrical characteristics include a resistance temperature coefficient of 35 ppm/°C and a typical power-on preset to midscale.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256-position adjustment per channel
• I²C-compatible 2-wire serial interface with full register read/write capability
• Additional address decode pins (AD0, AD1) for multi-device bus sharing
• Compact 10-lead MSOP package measuring 3 mm × 4.9 mm

Digital Potentiometers Applications

• Systems calibration and permanent factory PCB settings
• Replacement for mechanical trimmers in new designs
• Transducer adjustment for pressure, temperature, and optical sensors
• RF amplifier biasing and gain control offset adjustment

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm the specific suffix indicates the 100 kΩ resistance value and MSOP packaging. Check for End-of-Life status or obsolescence notices prior to procurement planning.

Digital Potentiometers Selection Notes

Select this model when a 100 kΩ nominal resistance is required. Ensure the design supports I²C communication protocols. Verify that the 2.7 V to 5.5 V supply range aligns with system power constraints. Consider the MSOP-10 footprint for PCB layout compatibility.

Digital Potentiometers Part Context

This component belongs to the AD5243/AD5248 family of dual, 256-position digital potentiometers. The AD5248 variant is distinguished by the inclusion of programmable address pins (AD0 and AD1), enabling multiple units to operate on a shared I²C bus without external hardware conflicts.

Digital Potentiometers Replacement Considerations

The AD5243BRM100 serves as a functional substitute if address decoding pins are not utilized. Other variants within the AD524x series may be considered if different resistance values or memory types are acceptable.