AD5222BRUZ10

Digital Potentiometers Overview

The AD5222BRUZ10 is a dual-channel, 128-position digital potentiometer in a TSSOP-14 package. It features a nominal resistance of 10 kΩ with a temperature coefficient of -35 ppm/°C and ±30% tolerance. Operating on a single supply of 2.7 V to 5.5 V or dual supplies up to ±2.7 V, it consumes a maximum of 40 µA. The device uses an Increment/Decrement interface controlled by CS, CLK, and U/D inputs. It supports common-mode and independent wiper adjustment modes, making it suitable for replacing mechanical potentiometers in instrumentation and audio applications.

Digital Potentiometers Feature Summary

• Dual-channel architecture with 128 tap positions per channel
• Increment/Decrement control interface compatible with push-button switches
• Low power consumption of 40 µA maximum at 5 V
• Common-mode operation preserves relative wiper spacing

Digital Potentiometers Applications

• Stereo channel audio level control
• Mechanical potentiometer replacement
• Remote incremental adjustment applications
• Instrumentation gain and offset adjustment

Digital Potentiometers Procurement Notes

Verify the specific suffix 'RU' confirms the TSSOP-14 package variant rather than the standard SOIC-14. Confirm the '10' suffix indicates the 10 kΩ resistance value. Check manufacturing date codes as this component may be subject to obsolescence management. Ensure ESD precautions are observed during handling due to the sensitivity of the CMOS input structure.

Digital Potentiometers Selection Notes

Select this model when a dual-channel solution with simple button control is required without microcontroller overhead. The 10 kΩ value offers a balance between bandwidth (approx. 1 MHz) and power dissipation. Verify that the volatile memory behavior aligns with the application, as settings are lost upon power loss. Consider the -35 ppm/°C temperature coefficient for precision requirements.

Digital Potentiometers Part Context

This component belongs to the AD5222 family of dual digital potentiometers. It serves as an electronic alternative to mechanical pots, specifically optimized for test equipment front panels. Unlike SPI-based counterparts like the AD5203, this part utilizes a simpler Up/Down counter interface, reducing pin count and logic complexity for basic adjustment tasks.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements include other AD5222 variants with different resistance values (e.g., AD5222BRU50 for 50 kΩ). For non-volatile storage requirements, consider the AD5122 series. For SPI interfaces, the AD5203 or AD5206 are functional alternatives but require different control logic.