AD5171BRJ5-RL7

Overview

The AD5171BRJ5-RL7 is a 64-position, one-time programmable (OTP) digital potentiometer from Analog Devices. It utilizes fuse link technology to permanently retain the resistance setting after programming. The device features an I2C-compatible digital interface for control and offers end-to-end resistance options including 5 kΩ. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an automotive temperature range of −40°C to +125°C. The component is housed in a compact 8-lead SOT-23 package.

Feature Summary

• 64-position One-Time Programmable (OTP) memory using fuse link technology
• I2C-compatible 2-wire serial digital interface with full read/write wiper register access
• Low power consumption with maximum supply current of 10 μA
• Automotive qualified operating temperature range of −40°C to +125°C

Applications

• System calibrations
• Mechanical trimmers and potentiometer replacements
• Gain control and offset adjustments
• Transducer circuit adjustments
• Programmable filters up to 1.5 MHz bandwidth

Procurement Notes

Verify the specific suffix RL7 corresponds to the reel packaging configuration as defined by Analog Devices. Confirm that the BRJ designation indicates the 5 kΩ resistance value and SOT-23 package type. Ensure OTP programming requirements are met during manufacturing, as the setting is permanent once activated.

Selection Notes

Select this component when a non-volatile, set-and-forget resistance setting is required without the cost of EEPROM. The 5 kΩ variant is suitable for applications requiring higher bandwidth compared to higher resistance values. Verify that the system can provide the necessary 4.75 V to 5.25 V supply for the OTP programming phase if the main supply is lower.

Part Context

This part belongs to the AD5171 family of 64-position OTP digital potentiometers. The BRJ suffix typically denotes the 5 kΩ resistor value and the SOT-23-8 package. Other variants in the series include 10 kΩ, 50 kΩ, and 100 kΩ options, often packaged in MSOP-10 or SOT-23-8 depending on the specific model number.

Replacement Considerations

Direct replacements must match the 64-position OTP architecture and I2C interface. Consider the AD5171BRJ10, AD5171BRJ50, or AD5171BRJ100 for different resistance values within the same package. For non-OTP volatile alternatives, the AD5161 series may be considered, though it lacks the permanent fuse retention feature.