AD5282BRUZ20

Digital Potentiometers Overview

The AD5282BRUZ20 is a dual-channel, 256-position digital potentiometer from Analog Devices Inc. It features an I²C-compatible interface and operates on a single +15 V or ±5 V supply. The nominal terminal resistance is 20 kΩ with a temperature coefficient of 30 ppm/°C. Key specifications include a wiper resistance of 60 Ω typical, a settling time of 5 μs, and a bandwidth of 310 kHz at the 20 kΩ setting. The device utilizes volatile memory and defaults to midscale upon power-on.

Digital Potentiometers Feature Summary

• Dual-channel configuration with 256 programmable positions
• I²C-compatible serial interface for control
• Operates on +15 V single or ±5 V dual supplies
• Power-on midscale preset for fault recovery

Digital Potentiometers Applications

• Multimedia, video, and audio systems
• Instrumentation gain and offset adjustment
• Programmable voltage and current sources
• Mechanical potentiometer replacement

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and resistance value. Ensure compatibility with system voltage requirements, as the device supports up to +15 V or ±5 V. Confirm logic supply levels match the controlling digital interface.

Digital Potentiometers Selection Notes

Select this component for applications requiring dual-channel digital resistance control via I²C. The 20 kΩ resistance value offers a 310 kHz bandwidth. Consider the 30% tolerance and 30 ppm/°C temperature coefficient for precision requirements. The device requires a separate logic supply (VL) compatible with the host controller.

Digital Potentiometers Part Context

This part belongs to the AD5280/AD5282 family of single and dual-channel digital potentiometers. The AD5282 variant specifically provides two independent channels within a single package, sharing the same I²C interface and power supply architecture as the single-channel AD5280.

Digital Potentiometers Replacement Considerations

For single-channel applications, the AD5280 series may serve as a functional substitute if channel count is not required. Verify pinout compatibility and interface protocols when considering cross-model replacements within the digital potentiometer category.

Digital Potentiometers FAQ

What is the default wiper position upon power-up?

The wiper position defaults to midscale during system power-on.

How many address bits are available for multiple devices on one bus?

Two programmable address bits (AD0 and AD1) allow for four possible addresses.

What is the maximum operating voltage for the AD5282BRUZ20?

The device supports operation up to +15 V single supply or ±5 V dual supply.