AD5160BRJZ100-R2

Overview

The AD5160BRJZ100-R2 is a single-channel, 8-bit SPI-compatible digital potentiometer with a nominal end-to-end resistance of 100 kΩ. It features 256 tap positions and operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device consumes a typical supply current of 3 µA and includes a power-on preset function that initializes the wiper to midscale. It utilizes a compact SOT-23-8 package and supports an SPI clock frequency up to 25 MHz. The component is rated for operation in temperatures between –40°C and +125°C.

Feature Summary

• 256-position resolution with linear taper
• SPI-compatible 3-wire serial interface (SDI, CLK, CS)
• Power-on preset to midscale position
• Low power consumption: 3 µA typical supply current

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging type and compliance status. The 'R2' suffix indicates reel packaging, while 'RL7' denotes cut tape. Ensure the selected variant matches the required physical delivery format for the manufacturing process.

Selection Notes

Select this component when a solid-state replacement for mechanical potentiometers is required in space-constrained designs. The 100 kΩ resistance value is suitable for high-impedance signal paths. Consider the 45 ppm/°C temperature coefficient for stability requirements. Verify that the system logic levels are compatible with the SPI interface specifications.

Part Context

This part belongs to the AD5160 family of 256-position digital potentiometers. Other variants in the series include 5 kΩ, 10 kΩ, and 50 kΩ versions, identified by different numerical suffixes in the model number. All variants share the same pinout, interface, and general electrical characteristics, differing primarily in nominal resistance and associated dynamic performance metrics like bandwidth.

Replacement Considerations

Direct functional replacements within the same package and specification set include other AD5160 variants such as AD5160BRJZ50-R2 or AD5160BRJZ10-R2, provided the resistance value difference is acceptable for the circuit design.