AD5172BRMZ100-RL7

Overview

The AD5172BRMZ100-RL7 is a dual-channel, 256-position digital potentiometer from Analog Devices. It features one-time programmable (OTP) memory for permanent resistance settings and operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device utilizes an I2C-compatible interface for control and offers a nominal end-to-end resistance of 100 kΩ with a temperature coefficient of 35 ppm/°C. Key electrical parameters include a maximum supply current of 6 µA, a typical power-on settling time of 5 µs, and a wiper resistance of 200 Ω maximum. It is housed in a compact 10-lead MSOP package.

Feature Summary

• Dual-channel architecture with 256 tap positions per channel
• One-time programmable (OTP) fuse link technology for nonvolatile storage
• I2C-compatible serial interface for digital control
• Low power consumption with 6 µA maximum supply current

Applications

• Systems calibration and electronics level setting
• Replacement for mechanical trimmers in new designs
• Permanent factory PCB setting applications
• Transducer adjustment for pressure, temperature, and optical sensors
• RF amplifier biasing and gain control

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact resistance value and package variant. Ensure that the design supports the required OTP programming voltage conditions if permanent configuration is needed. Cross-reference the component status to confirm availability and lifecycle stage before finalizing procurement plans.

Selection Notes

Select this component when a dual-channel digital potentiometer with nonvolatile memory is required. The 100 kΩ resistance value suits applications needing higher impedance levels. Verify that the system can provide the necessary I2C pull-up voltages and that the 2.7 V to 5.5 V supply range aligns with the target operating environment.

Part Context

This part belongs to the AD5172/AD5173 family of 256-position digital potentiometers. The AD5172 variant lacks the additional address pins found in the AD5173, limiting its use in multi-device I2C configurations without external addressing logic. Both variants share identical electrical characteristics and OTP functionality.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.