AD5247BKSZ50-RL7

Digital Potentiometers Overview

The AD5247BKSZ50-RL7 is a single-channel digital potentiometer IC from Analog Devices, featuring 128 adjustable positions and an end-to-end resistance of 50 kΩ. It operates on a single supply voltage ranging from 2.7 V to 5.5 V with a typical supply current of 0.9 µA at 3.3 V. The device utilizes an I²C-compatible interface for full read/write access to the wiper register. Packaged in an ultracompact SC-70-6 (2 mm × 2.1 mm) footprint, it supports a wide operating temperature range from −40°C to +125°C.

Digital Potentiometers Feature Summary

• 128-position adjustment with 50 kΩ nominal end-to-end resistance
• I²C-compatible serial interface supporting full read/write operations
• Low power consumption: 0.9 µA typical at 3.3 V supply
• Ultracompact SC-70-6 package (2 mm × 2.1 mm)
• Wide operating temperature range: −40°C to +125°C

Digital Potentiometers Applications

• Mechanical potentiometer replacement in new designs
• Transducer adjustment for pressure, temperature, position, chemical, and optical sensors
• RF amplifier biasing
• LCD brightness and contrast adjustment
• Gain control and offset adjustment

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix RL7 corresponds to the tape and reel packaging configuration required for automated assembly processes. Confirm that the 50 kΩ resistance value aligns with circuit design specifications, as other variants such as 5 kΩ, 10 kΩ, and 100 kΩ are available within the same family. Ensure compatibility with the target I²C bus voltage levels before integration.

Digital Potentiometers Selection Notes

Select this component when a compact solution for variable resistance adjustment is required without mechanical wear. The 50 kΩ value offers a balance between noise performance and drive capability. Consider the volatile memory type, which requires power retention or re-initialization upon power loss. The device supports rheostat and potentiometer divider modes, with the latter offering improved temperature stability due to ratio-based operation.

Digital Potentiometers Part Context

This part belongs to the AD5247 series of 128-position digital potentiometers. The 'BKSZ' designation indicates the specific package style and resistance variant, while '50' specifies the 50 kΩ end-to-end resistance. The 'RL7' suffix denotes the reel packaging format. Other members of the family include variants with 5 kΩ, 10 kΩ, and 100 kΩ resistances, some of which offer multiple hard-coded I²C slave addresses.

Digital Potentiometers Replacement Considerations

Direct replacements within the AD5247 family include AD5247BKSZ5-RL7 (5 kΩ), AD5247BKSZ10-RL7 (10 kΩ), and AD5247BKSZ100-RL7 (100 kΩ). These parts share identical pinouts and functionality but differ in resistance values. For applications requiring multiple devices on a single bus, consider variants like AD5247BKSZ10-1RL7 which provide additional slave address options.