AD5207BRUZ10

Overview

The AD5207BRUZ10 is a dual-channel, 8-bit digital potentiometer IC manufactured by Analog Devices Inc. It features two independent variable resistors with a nominal resistance of 10 kΩ and 256 tap positions. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V or a dual supply of ±2.7 V. Control is managed via a 3-wire SPI-compatible serial interface requiring a 10-bit data word for each channel update. Key electrical characteristics include a wiper resistance of 50 Ω to 100 Ω, a temperature coefficient of 500 ppm/°C, and a shutdown current of less than 5 µA when the SHDN pin is active.

Feature Summary

• Dual-channel architecture with 256 programmable positions per channel
• 10 kΩ nominal end-to-end resistance with ±30% tolerance
• 3-Wire SPI-compatible serial interface with daisy-chain capability via SDO
• Power-down mode consuming less than 5 µA with latch retention

Applications

• Mechanical potentiometer replacement in embedded systems
• Stereo channel audio level control
• Instrumentation gain and offset adjustment
• Programmable voltage-to-current conversion circuits
• Line impedance matching applications

Procurement Notes

Verify the specific resistance value suffix (e.g., 10, 50, 100) matches the design requirement, as the base model number does not indicate resistance. Confirm package availability in TSSOP-14 format. Check for RoHS compliance status and ensure the ordering container type (Tube vs. Reel) aligns with manufacturing equipment capabilities. Validate that the extended industrial temperature range (-40°C to +125°C) meets system environmental specifications.

Selection Notes

Select this component when a dual-channel solution is required to save board space compared to single-channel alternatives like the AD5206. Ensure the system can accommodate the volatile memory nature, as power-on reset forces a midscale preset. Verify that the 10-bit serial protocol fits the microcontroller's available interfaces. Consider the 500 ppm/°C temperature coefficient if high precision over wide temperature ranges is critical.

Part Context

This part belongs to the AD5207 family of 2-channel digital potentiometers. It is functionally compatible with the AD8402 series regarding address decoding, allowing for drop-in replacements in designs originally using AD8402 components. The BRU variant specifically denotes the commercial temperature grade within the broader AD5207 product line.

Replacement Considerations

The AD5206BRUZ10 serves as a single-channel equivalent. For higher resolution requirements, consider the AD5231 which offers 10-bit resolution. If non-volatile memory is necessary to retain settings across power cycles, the AD5231 is the appropriate alternative.