ADPD1080BCBZR7

Overview

The ADPD1080BCBZR7 is a photometric front end from Analog Devices, featuring an integrated 14-bit ADC and a 20-bit burst accumulator. It operates on a single 1.8 V supply (1.7 V to 1.9 V) with I2C interface control. The device includes three LED drivers capable of 370 mA peak current and supports sampling frequencies from 0.122 Hz to 2700 Hz. It provides ambient light rejection without external optical filters. The component is housed in a 16-ball WLCSP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated analog front end with synchronous detection for ambient light interference rejection
• Flexible multi-pulse LED driver architecture supporting up to 370 mA peak current
• Dual-stage accumulation combining 20-bit burst data with sample-to-sample averaging
• Configurable time slot operation enabling independent dual-wavelength measurements

Applications

• Wearable health and fitness monitors
• Clinical SpO2 measurements
• Industrial monitoring systems
• Background light measurement applications

Procurement Notes

Verify the specific ordering suffix BCBZR7 against the manufacturer's official documentation to confirm the exact package type and reel specifications. Ensure that the I2C interface requirements align with the system design, as this variant differs from the SPI-only ADPD1081 model. Cross-reference the automotive qualification status if operating conditions exceed standard industrial limits.

Selection Notes

Select this component when an I2C interface is required for configuration and data readout. The ADPD1080 offers multiple package options including LFCSP and WLCSP; verify the pin count matches the PCB layout constraints. Consider the power consumption profiles under different LED pulse configurations to ensure battery life targets are met in portable designs.

Part Context

This part belongs to the ADPD1080/ADPD1081 family of photometric front ends designed for optical sensing. While the ADPD1081 utilizes an SPI interface, the ADPD1080 specifically implements an I2C interface for digital communication. Both share identical analog front-end capabilities and LED driver architectures, differing primarily in their digital control protocols and available package variants.

Replacement Considerations

The ADPD1081 serves as a functional substitute if the application can accommodate an SPI interface instead of I2C. Verify pin compatibility and register mapping differences before substitution. Other ADPD series devices may offer higher channel counts but require significant schematic and firmware redesigns.