AD5280BRUZ200-R7

Digital Potentiometers Overview

The AD5280BRUZ200-R7 is a single-channel, 256-position digital potentiometer from Analog Devices. It features a fixed terminal resistance of 200 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. The component is housed in a 14-lead TSSOP package and supports an operating temperature range of −40°C to +85°C.

Digital Potentiometers Feature Summary

• Single-channel configuration with 256 tap positions and 200 kΩ fixed resistance.
• I²C-compatible serial interface with programmable address bits (AD0, AD1).
• Operates on single (+4.5 V to +16.5 V) or dual (±4.5 V to ±5.5 V) power supplies.
• Includes programmable logic outputs (O1, O2) and power-on midscale preset.

Digital Potentiometers Applications

• Multimedia, video, and audio signal processing.
• Instrumentation gain and offset adjustment.
• Programmable voltage and current sources.
• Mechanical potentiometer replacement in compact designs.

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix '-R7' against the manufacturer's official documentation to confirm reel packaging specifications. Ensure the 200 kΩ resistance variant matches the circuit requirements. Confirm RoHS compliance status and lead-free soldering parameters prior to integration.

Digital Potentiometers Selection Notes

Select this component when a single-channel digital control is required with high terminal resistance. The 200 kΩ value offers lower power consumption compared to 20 kΩ or 50 kΩ variants but results in reduced bandwidth (35 kHz typical). Verify that the I²C bus speed does not exceed 400 kHz and that the logic supply voltage aligns with the system controller.

Digital Potentiometers Part Context

This part belongs to the AD5280/AD5282 family of digitally controlled variable resistors. The AD5280 denotes the single-channel version, while the AD5282 provides dual channels. The 'BRU' indicates the industrial temperature grade and TSSOP package, and 'Z200' specifies the 200 kΩ resistance value.

Digital Potentiometers Replacement Considerations

For dual-channel applications requiring identical electrical characteristics, consider the AD5282 series. For SPI-compatible interfaces, the AD5260 series serves as a functional alternative. Direct pin-to-pin replacements within the same resistance value are limited to the AD5280 family variants.