AD5246BKSZ10-R2

Digital Potentiometers Overview

The AD5246BKSZ10-R2 is a 128-position, digitally controlled variable resistor (RDAC) from Analog Devices. It features an I²C-compatible interface for full read/write access to the wiper register. The device 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. It provides a nominal end-to-end resistance of 10 kΩ with a temperature coefficient of 45 ppm/°C in rheostat mode. The component is housed in an ultracompact SC-70-6 package measuring 2 mm × 2.1 mm and supports an operating temperature range from –40°C to +125°C.

Digital Potentiometers Feature Summary

• 128-position digital adjustment via I²C compatible serial interface
• Single supply operation from 2.7 V to 5.5 V with low power consumption (0.9 µA typ at 3.3 V)
• Ultracompact 6-lead SC-70 package (2 mm × 2.1 mm)
• Power-on preset to midscale setting

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

Digital Potentiometers Procurement Notes

Verify the ordering suffix 'R2' against the manufacturer's documentation to confirm specific packaging details, as this suffix distinguishes it from the 'RL7' variant which typically indicates reel packaging. Ensure compatibility with the required 10 kΩ resistance value and SC-70-6 footprint during procurement planning.

Digital Potentiometers Selection Notes

Select the AD5246BKSZ10-R2 when a compact form factor is required for I²C-controlled resistance adjustment. The 10 kΩ nominal resistance suits applications requiring moderate impedance levels. Consider the 45 ppm/°C temperature coefficient and ±20% tolerance for accuracy requirements. Verify that the system can maintain constant bias if nonvolatile storage is needed, as the device lacks internal memory.

Digital Potentiometers Part Context

This component belongs to the AD5246 family of 128-position I²C-compatible digital resistors. Other variants in the series include models with 5 kΩ, 50 kΩ, and 100 kΩ nominal resistances. The 'B' designation indicates the industrial temperature range (-40°C to +125°C), while the 'KSZ' denotes the SC-70-6 package option.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements within the same family include AD5246BKSZ5-RL7 (5 kΩ), AD5246BKSZ50-RL7 (50 kΩ), and AD5246BKSZ100-RL7 (100 kΩ). Cross-family comparisons should consider the AD5245 (256-position) or AD5247 (128-position, different interface options) if higher resolution or alternative interfaces are acceptable.