AD5222BRU10-REEL7

Overview

The AD5222BRU10-REEL7 is a dual-channel, 128-position digital potentiometer in a TSSOP-14 package. It features a nominal end-to-end resistance of 10 kΩ with 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. Maximum power supply current is 40 mA. Key electrical parameters include a wiper resistance of 45 Ω typical at 25°C and a bandwidth of 1 MHz for the 10 kΩ version. It utilizes an increment/decrement interface controlled by CS, CLK, and U/D pins.

Feature Summary

• Dual-channel architecture with 128 programmable positions per channel
• Increment/Decrement control interface compatible with push-button switches
• Common Mode and Independent Mode operation for synchronized or separate adjustment
• Power-on reset centers wipers to mid-scale position

Applications

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

Procurement Notes

Verify the 'RU' suffix confirms the TSSOP-14 package variant rather than the SOIC-14. Confirm the '10' designation indicates the 10 kΩ resistance value. Ensure the '-REEL7' suffix matches the required tape and reel quantity specifications for manufacturing integration.

Selection Notes

Select this model for applications requiring a 10 kΩ nominal resistance. Choose between Common Mode (MODE=0) for stereo tracking or Independent Mode (MODE=1) for separate channel control using the DACSEL pin. Ensure the system voltage falls within the 2.7 V to 5.5 V single-supply range.

Part Context

This component belongs to the AD5222 family of dual digital potentiometers. Other variants in the series offer different terminal resistances including 50 kΩ, 100 kΩ, and 1 MΩ. Package options include both SOIC-14 and TSSOP-14 configurations depending on space constraints.

Replacement Considerations

Direct replacements include other AD5222 variants with matching resistance values such as AD5222BR10 for the SOIC-14 package. For SPI-compatible interfaces, consider the AD5203 or AD8400 series, though interface logic will differ.