AD5246BKS10-RL7

Digital Potentiometers Overview

The AD5246BKSZ10-RL7 is a 128-position digital potentiometer from Analog Devices, packaged in an ultracompact SC-70-6 (2 mm × 2.1 mm) footprint. It features a nominal end-to-end resistance of 10 kΩ with a linear taper and ±20% tolerance at 25°C. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, consuming a typical supply current of 0.9 µA at 3.3 V. It utilizes an I²C-compatible interface for full read/write access to the wiper register. The unit supports a wide operating temperature range from –40°C to +125°C and includes a power-on preset function that initializes the wiper to midscale upon startup.

Digital Potentiometers Feature Summary

• 128-position adjustment with 10 kΩ nominal resistance and linear taper
• I²C-compatible serial interface supporting full read/write operations
• Ultracompact SC-70-6 package measuring 2 mm × 2.1 mm
• Low power consumption of 0.9 µA typical at 3.3 V supply

Digital Potentiometers Applications

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

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging type and compliance status. The 'RL7' suffix indicates reel packaging. Ensure compatibility with the target system's I²C bus voltage levels and check for any recent product change notices or lifecycle status updates directly from Analog Devices before finalizing procurement.

Digital Potentiometers Selection Notes

Select this component when a compact form factor is required for 128-step variable resistance applications. The 10 kΩ value suits moderate impedance circuits, while the low supply current makes it suitable for battery-operated devices. Confirm that the I²C address configuration meets system requirements, as the device uses a fixed slave address. Consider the thermal coefficient of 45 ppm/°C for precision stability across the specified temperature range.

Digital Potentiometers Part Context

This part belongs to the AD5246 family of 128-position digital resistors. Other variants in the series offer different resistance values, including 5 kΩ, 50 kΩ, and 100 kΩ options, all sharing the same SC-70-6 package and I²C interface. The family is designed to replace mechanical potentiometers in space-constrained environments requiring electronic adjustment capabilities.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include AD5246BKSZ5-RL7 (5 kΩ), AD5246BKSZ50-RL7 (50 kΩ), and AD5246BKSZ100-RL7 (100 kΩ). These parts share identical pinouts and functionality but differ in nominal resistance. Verify that the circuit design accommodates the specific resistance value and current limits of the substitute part.