AD5248BRMZ50-RL7

Digital Potentiometers Overview

The AD5248BRMZ50-RL7 is a dual-channel, 256-position digital potentiometer from Analog Devices. It features an end-to-end resistance of 50 kΩ with a tolerance of ±20% and a temperature coefficient of 35 ppm/°C. 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. Packaged in a compact 10-lead MSOP (3 mm × 4.9 mm) format, it includes programmable address decode pins (AD0, AD1) to support multiple devices on a single bus.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 256 tap positions per channel
• I²C-compatible 2-wire serial interface with full register read/write capability
• Programmable address pins (AD0, AD1) for multi-device bus decoding
• Power-on preset to midscale position for fault recovery

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

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix RL7 against the manufacturer's official documentation to confirm reel packaging specifications. Confirm that the BRMZ variant corresponds to the commercial temperature range and MSOP package type as defined in the AD5248 datasheet. Ensure compatibility with existing I²C bus addressing schemes due to the presence of AD0 and AD1 pins.

Digital Potentiometers Selection Notes

Select this component when a dual-channel digital solution is required within a compact MSOP footprint. The 50 kΩ resistance value suits applications requiring moderate impedance levels. Verify that the system can accommodate the volatile memory nature of the wiper settings, as power loss will reset the resistance values unless maintained by constant bias or external storage.

Digital Potentiometers Part Context

This part belongs to the AD5248 family of dual digital potentiometers. It shares core electrical characteristics with the AD5243 but distinguishes itself through the inclusion of two additional address pins (AD0 and AD1). This feature enables complex bus topologies where multiple units operate on the same I²C lines without address conflicts, unlike the single-channel or non-addressed variants.

Digital Potentiometers Replacement Considerations

Direct functional replacements include the AD5243 series for single-channel applications or other AD5248 variants with different resistance values (e.g., AD5248BRM100). Ensure substitute parts match the 10-lead MSOP package dimensions and I²C timing requirements.