AD5207BRUZ50

Overview

The AD5207BRUZ50 is a dual-channel, 8-bit digital potentiometer manufactured by Analog Devices Inc. It provides two independent variable resistors with 256 tap positions and a nominal resistance of 50 kΩ. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V or a dual supply of ±2.2 V to ±2.7 V. It features a 3-wire SPI-compatible serial interface for data input and includes a power-down mode that reduces current consumption to less than 5 µA. The unit is housed in a 14-lead TSSOP package and is rated for operation over an extended industrial temperature range of –40°C to +125°C.

Feature Summary

• Dual-channel architecture with 256 programmable positions per channel
• Nominal resistance of 50 kΩ with ±30% tolerance and 500 ppm/°C temperature coefficient
• 3-wire SPI-compatible serial interface with daisy-chain capability via SDO pin
• Active-low SHDN pin enables microwatt power shutdown state

Applications

• Mechanical potentiometer replacement
• Stereo channel audio level control
• Instrumentation gain and offset adjustment
• Programmable filters, delays, and time constants
• Line impedance matching

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the nominal resistance value and packaging type. The BRUZ50 designation indicates a 50 kΩ variant in a TSSOP-14 package. Confirm availability status and lead times directly with authorized distributors as stock levels fluctuate. Ensure compliance with RoHS directives if required for the specific application environment.

Selection Notes

Select this component when a dual-channel digital solution is required with a 50 kΩ end-to-end resistance. The 8-bit resolution provides 256 discrete steps suitable for precision adjustments. Consider the 500 ppm/°C temperature coefficient for thermal stability requirements. Verify that the system logic levels are compatible with the 3-wire serial interface and that the 2.7 V to 5.5 V supply range matches the design constraints.

Part Context

This part belongs to the AD5207 family of 2-channel digital potentiometers. Other variants in the series include the AD5207BRU10 (10 kΩ) and AD5207BRU100 (100 kΩ). These devices share identical pinouts, interfaces, and electrical characteristics except for the nominal resistance value. The family is designed as drop-in replacements for mechanical potentiometers in space-constrained applications.

Replacement Considerations

Direct functional substitutes within the same package and interface include the AD5207BRU10 and AD5207BRU100, differing only in resistance value. For single-channel applications, the AD8400 series offers similar performance in smaller packages. When replacing mechanical pots, ensure the wiper current limits are not exceeded during zero-scale operation.