ADPD1081BCBZR7

Overview

The ADPD1081BCBZR7 is a photometric front end featuring an integrated 14-bit ADC and a 20-bit burst accumulator. It operates on a single 1.8 V supply with a range of 1.7 V to 1.9 V. The device utilizes an SPI interface for data output and configuration. It includes three LED drivers capable of 370 mA peak current. Sampling frequencies range from 0.122 Hz to 2700 Hz. The component is housed in a 17-ball WLCSP package.

Feature Summary

• Integrated analog-to-digital conversion with burst accumulation
• Ambient light rejection without external optical filters
• Flexible multi-pulse LED signaling capability

Applications

• Wearable health and fitness monitors
• Clinical measurements such as SpO2
• Industrial monitoring systems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm interface type and package variant. Ensure compatibility with system voltage requirements and communication protocols before integration into the design.

Selection Notes

Select this model when SPI connectivity is required instead of I2C. Confirm that the 17-ball WLCSP footprint aligns with PCB layout constraints. Verify thermal management capabilities for the intended operating environment.

Part Context

This component belongs to the ADPD108x family of photometric front ends. It shares core functionality with the ADPD1080 but differs in its digital interface, utilizing SPI exclusively rather than I2C. Both variants support similar optical sensing applications.

Replacement Considerations

The ADPD1080 serves as a functional alternative if I2C interface is acceptable. Verify pinout differences between the SPI-only and I2C versions during substitution.