AD5165BUJZ100-R7

Overview

The AD5165BUJZ100-R7 is a 256-position, ultralow power digital potentiometer with an end-to-end resistance of 100 kΩ. It operates on a supply voltage range of 2.7 V to 5.5 V while supporting logic levels as low as 1.8 V. The device features a typical standby current of 50 nA and a low temperature coefficient of 35 ppm/°C. It utilizes a simple 3-wire serial interface for wiper control and is housed in a compact TSOT-8 package measuring 2.9 mm × 2.8 mm. Designed for battery-operated applications, it offers solid-state reliability comparable to mechanical potentiometers.

Feature Summary

• Ultralow standby power consumption with typical IDD of 50 nA
• 256-position resolution with 100 kΩ nominal end-to-end resistance
• Logic high voltage compatible at 1.8 V minimum
• Compact TSOT-8 (2.9 mm × 2.8 mm) surface-mount package

Applications

• Battery-operated electronics adjustment
• Remote utilities meter adjustment
• Mechanical potentiometer replacement
• Transducer circuit adjustment
• System calibration

Procurement Notes

Verify the ordering suffix -R7 indicates a reel quantity of 3,000 units. Confirm the Z suffix denotes Pb-free construction. Ensure the specific model matches the required 100 kΩ resistance value and temperature range of -40°C to +125°C. Cross-reference pin compatibility if replacing AD5160 variants due to inverted CS requirements.

Selection Notes

Select this component when low quiescent power is critical for battery life. The 1.8 V logic level support allows integration with low-voltage microcontrollers. Verify that the 100 kΩ resistance value fits the circuit impedance requirements. Consider the TSOT-8 package size constraints for PCB layout. Ensure the operating temperature range meets environmental specifications.

Part Context

This part belongs to the AD5165 family of digital potentiometers. It is pin-to-pin compatible with the AD5160, though the chip-select function is inverted. The device serves as a solid-state alternative to mechanical potentiometers, providing enhanced resolution and stability. It is designed for applications requiring precise electronic adjustment without moving parts.

Replacement Considerations

The AD5165BUJZ100 is pin-compatible with the AD5160 series. Note that the AD5160 uses an inverted chip-select signal compared to the AD5165. Verify logic level compatibility and interface timing when substituting between these models.