AD5220WBRZ10-REEL7

Overview

The AD5220WBRZ10-REEL7 is an automotive-grade, single-channel digital potentiometer IC featuring a nominal resistance of 10 kΩ and 128 tap positions. It operates on a 2.7 V to 5.5 V supply with a typical current consumption of 15 µA at 5 V. The device utilizes a three-wire serial interface (CLK, CS, U/D) for wiper control. Key electrical characteristics include a maximum differential nonlinearity error of ±1 LSB and a power supply sensitivity of 0.015 %/%. It is housed in an 8-lead SOIC package and supports operation from -40°C to +85°C.

Feature Summary

• Automotive qualified (AD5220W series) with controlled manufacturing standards
• 128-position resolution with 10 kΩ nominal end-to-end resistance
• Three-wire serial interface (Clock, Chip Select, Up/Down)
• Volatile memory retaining position only during power

Applications

• Automotive audio volume control circuits
• Vehicle lighting brightness adjustment
• HVAC system airflow regulation
• Industrial sensor calibration

Procurement Notes

Verify the 'W' suffix indicates automotive qualification status. Confirm the 'REEL7' designation corresponds to the specific tape and reel packaging quantity required for automated assembly processes. Ensure the 10 kΩ resistance value matches the circuit design requirements.

Selection Notes

Select this component when automotive reliability standards are mandatory. The 10 kΩ value offers a balance between bandwidth and power consumption. Consider the volatile memory nature; if non-volatile storage is required, a different model must be selected. Verify that the 3-wire interface is compatible with the host microcontroller's available pins.

Part Context

This part belongs to the AD5220 family of 7-bit digital potentiometers. The 'W' prefix specifically denotes the automotive grade variant, while 'BRZ' indicates the 8-lead SOIC package and RoHS compliance. The '10' suffix specifies the 10 kΩ resistor value, distinguishing it from 50 kΩ or 100 kΩ variants within the same series.

Replacement Considerations

The AD5220BRZ10-REEL7 is the commercial equivalent. Substitution requires verifying that the commercial grade temperature range and reliability specifications meet the application's environmental requirements.