AD5165BUJZ100-R2

Overview

The AD5165BUJZ100-R2 is an ultralow power, 8-bit digital potentiometer featuring a 100 kΩ end-to-end resistance and 256 tap positions. It operates on a 2.7 V to 5.5 V supply with a typical standby current of 50 nA. The device utilizes a 3-wire serial interface (CS, CLK, SDI) compatible with 1.8 V logic levels. Packaged in a compact TSOT-8 form factor, it offers a linear taper and a low temperature coefficient of 35 ppm/°C. The component supports both rheostat and voltage divider modes, making it suitable for precision adjustment applications requiring solid-state reliability.

Feature Summary

• Ultralow standby power consumption with typical IDD of 50 nA
• 256-position resolution with 100 kΩ nominal resistance
• 3-wire digital interface supporting 1.8 V logic inputs
• Wide operating temperature range from -40°C to +125°C

Applications

• Battery-operated electronics adjustment
• Remote utilities meter calibration
• Mechanical potentiometer replacement
• Transducer circuit tuning
• Automotive electronics gain control

Procurement Notes

Verify the specific reel quantity associated with the R2 suffix against official Analog Devices documentation prior to ordering. Confirm that the TSOT-8 package dimensions and pinout align with the target PCB footprint. Ensure that the 1.8 V logic level compatibility meets the microcontroller or controller interface requirements for the CS, CLK, and SDI pins.

Selection Notes

Select this component when a single-channel digital potentiometer with low quiescent current is required. The 100 kΩ resistance value and 35 ppm/°C temperature coefficient are critical for maintaining accuracy over wide thermal ranges. Verify that the application does not exceed the maximum continuous current limits of ±5 mA at the wiper terminals to prevent internal switch damage.

Part Context

This part belongs to the AD5165 family of 256-position digital potentiometers manufactured by Analog Devices. It is functionally similar to the AD5160 but features an inverted chip-select logic to minimize idle power consumption. The BUJZ100 designation indicates a 100 kΩ resistance variant in a TSOT-8 package with Pb-free compliance.

Replacement Considerations

The AD5160 is a pin-compatible alternative within the same family; however, designers must account for the difference in chip-select polarity between the two devices.