AD5222BRUZ50

Digital Potentiometers Overview

The AD5222BRUZ50 is a dual-channel, 128-position digital potentiometer from Analog Devices Inc., housed in a TSSOP-14 package. It features a nominal resistance of 50 kΩ with a tolerance of ±30% and a temperature coefficient of -35 ppm/°C. The device operates on a single supply of 2.7 V to 5.5 V or a dual supply of ±2.3 V to ±2.7 V, consuming a maximum power supply current of 40 mA. Control is managed via an Increment/Decrement interface using CS, CLK, and U/D inputs, allowing for push-button operation without a microcontroller.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 128 tap positions per channel
• Increment/Decrement control interface compatible with mechanical switches
• Nominal resistance of 50 kΩ with -35 ppm/°C temperature coefficient
• Low power consumption with 40 µA maximum supply current

Digital Potentiometers Applications

• Stereo channel audio level control
• Mechanical potentiometer replacement in instrumentation
• Remote incremental adjustment applications
• Programmable voltage-to-current conversion

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix 'RU' confirms the TSSOP-14 package variant rather than the SO-14 option. Confirm the 'B' grade indicates the extended industrial temperature range of -40°C to +85°C. Ensure compatibility with the required 50 kΩ resistance value as other variants exist for 10 kΩ, 100 kΩ, and 1 MΩ.

Digital Potentiometers Selection Notes

Select this component when a simple, microcontroller-free interface is required for adjusting resistance values. The Increment/Decrement interface allows direct connection to push-button switches. Consider the 50 kΩ value for balancing bandwidth and power dissipation; lower resistances offer higher bandwidth while higher values reduce power consumption.

Digital Potentiometers Part Context

This part belongs to the AD5222 family of dual digital potentiometers. The BRU designation specifically identifies the 50 kΩ version packaged in the thin TSSOP-14 form factor. Other members of the series include variations in resistance (10 kΩ, 100 kΩ, 1 MΩ) and package type (SO-14).

Digital Potentiometers Replacement Considerations

For SPI-compatible interfaces, consider the AD5203, AD5206, AD7376, or AD8400 series. For different pin counts or channel configurations, review the AD5204 or AD8402 products.