AD5273BRJ10-REEL7

Digital Potentiometers Overview

The AD5273BRJ10-REEL7 is a 6-bit, one-time programmable (OTP) digital potentiometer manufactured by Analog Devices Inc. It features a single potentiometer with 64 tap positions and an end-to-end resistance of 10 kΩ. The device utilizes I²C-compatible digital interface for control and operates within a supply voltage range of 2.7 V to 5.5 V. Key electrical parameters include a maximum supply current of 5 µA, a typical adjustment settling time of 5 µs, and a wiper resistance of 100 Ω. It is housed in an 8-lead SOT-23 package and supports an operating temperature range from −40°C to +105°C.

Digital Potentiometers Feature Summary

• One-time programmable (OTP) fuse link technology for permanent setting retention
• I²C-compatible serial digital interface with two address bits
• Single potentiometer configuration with 64 discrete tap positions
• Ultralow power consumption with 5 µA maximum supply current

Digital Potentiometers Applications

• System calibrations requiring fixed resistance values
• Replacement for mechanical potentiometers and trimmers
• Electronics level settings in consumer devices
• Transducer circuit adjustments

Digital Potentiometers Procurement Notes

Verify the specific resistance value suffix in the part number to ensure it matches the required 10 kΩ specification. Confirm that the OTP programming capability aligns with the application's need for nonvolatile storage without EEPROM. Check package compatibility for the SOT-23-8 footprint during PCB layout.

Digital Potentiometers Selection Notes

Select this component when a permanent, nonvolatile resistance setting is required after initial calibration. Ensure the system can provide the necessary 5 V to 5.5 V supply for the OTP programming phase if higher than the operating voltage. Consider the 10 kΩ terminal resistance for bandwidth and power dissipation requirements.

Digital Potentiometers Part Context

This part belongs to the AD5273 family of 6-bit OTP digital potentiometers. It serves as a cost-effective alternative to EEPROM-based digital pots for applications where dynamic adjustment is not needed after factory programming. The BRJ suffix indicates the commercial temperature grade and SOT-23 package.

Digital Potentiometers Replacement Considerations

For dynamic adjustment needs, consider the AD5231 or AD5232 families which feature EEPROM memory. For SPI interface requirements, the AD5270 or AD5271 series may be suitable alternatives.