AD5280BRUZ50-REEL7

Digital Potentiometers Overview

The AD5280BRUZ50-REEL7 is a single-channel, 256-position digital potentiometer from Analog Devices Inc., housed in a 14-lead TSSOP package. It features a fixed terminal resistance of 50 kΩ with a nominal temperature coefficient of 30 ppm/°C and a wiper resistance of 60 Ω. The device operates on a single supply of 4.5 V to 16.5 V or dual supplies of ±4.5 V to ±5.5 V. It utilizes an I²C-compatible interface for programming the RDAC register and includes programmable logic outputs.

Digital Potentiometers Feature Summary

• Single-channel digital potentiometer with 256 tap positions
• I²C-compatible serial interface for data transfer
• Power-on midscale preset for fault recovery
• Programmable logic outputs (O1, O2) for driving external loads

Digital Potentiometers Applications

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

Digital Potentiometers Procurement Notes

Verify the specific resistance value suffix (e.g., '50' for 50 kΩ) matches the circuit requirements. Confirm that the 'REEL7' designation indicates tape-and-reel packaging suitable for automated assembly processes. Ensure the operating voltage range aligns with the system's power supply constraints.

Digital Potentiometers Selection Notes

Select this component when a single-channel variable resistor with I²C control is required. The 50 kΩ resistance value offers a balance between bandwidth and power consumption. Consider the AD5282 if dual-channel operation is needed, or the AD5293 for higher resolution applications requiring SPI compatibility.

Digital Potentiometers Part Context

This part belongs to the AD5280/AD5282 family of digitally controlled variable resistors. The 'B' grade indicates industrial temperature range operation (-40°C to +85°C). The 'RUZ' code specifies the thin-profile 14-lead TSSOP surface-mount package, while 'REEL7' denotes the bulk reel packaging format.

Digital Potentiometers Replacement Considerations

The AD5280BRUZ50 is functionally equivalent to the AD5280BRUZ50-TR. For dual-channel requirements, the AD5282 series serves as a compatible alternative within the same family.