AD5172BRM10-RL7

Overview

The AD5172BRM10-RL7 is a dual-channel, 256-position digital potentiometer manufactured by Analog Devices. It features one-time programmable (OTP) memory for permanent resistance settings and operates via an I²C-compatible interface. The device provides an end-to-end resistance of 10 kΩ with a temperature coefficient of 35 ppm/°C. It supports a supply voltage range of 2.7 V to 5.5 V and consumes a maximum supply current of 6 µA. The component is housed in a compact 10-lead MSOP package measuring 3 mm × 4.9 mm.

Feature Summary

• Dual-channel architecture with 256 tap positions per channel
• One-time programmable (OTP) fuse link technology for permanent setting retention
• I²C-compatible serial interface with full read/write capability
• Low power consumption with 6 µA maximum supply current

Applications

• Systems calibration
• Electronics level setting
• Replacement for mechanical trimmers
• Transducer adjustment for pressure, temperature, and optical sensors
• RF amplifier biasing

Procurement Notes

Verify the specific ordering suffix RL7 confirms tape-and-reel packaging when sourcing. Confirm that the BRM variant corresponds to the MSOP-10 package type. Ensure the '10' designation matches the required 10 kΩ end-to-end resistance value for the application design.

Selection Notes

Select this model for applications requiring dual-channel adjustment with permanent factory-set values. The OTP feature eliminates the need for external EEPROM. Verify that the system can provide the required 5.6 V to 5.8 V supply during the programming phase if permanent settings are needed.

Part Context

This component belongs to the AD517x family of digital potentiometers. The AD5172 variant specifically offers two independent channels within a single package. It serves as a solid-state alternative to mechanical potentiometers, offering higher reliability and lower temperature drift compared to traditional components.

Replacement Considerations

The AD5173 is a compatible single-channel variant within the same family. For non-OTP requirements, consider the AD5248 series. Ensure any replacement maintains the 10 kΩ resistance and MSOP-10 footprint.