ADPD1080BCPZ

Overview

The ADPD1080BCPZ is a multifunction photometric front end featuring an integrated 14-bit analog-to-digital converter, LED drivers, and timing core. It operates on a single 1.7 V to 1.9 V supply with typical current consumption of 53 µA at 100 Hz data rate in single-channel mode. The device supports I2C interface and includes three 370 mA peak current LED drivers. It offers flexible sampling frequencies from 0.122 Hz to 2700 Hz and utilizes a 20-bit burst accumulator for enhanced resolution. The component is housed in a 28-lead LFCSP package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated ambient light rejection capability without requiring external optical filters or DC cancellation circuitry.
• Flexible multiple short LED pulses per optical sample enabling high signal-to-noise ratio performance.
• On-board sample-to-sample accumulator extending effective data read resolution up to 27 bits.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm interface type and package variant. Ensure compatibility with system voltage requirements and communication protocols before integration. Cross-reference the part number with authorized distributors to confirm availability and authenticity.

Selection Notes

Select this component for applications requiring low-power photometric sensing with integrated signal processing. Consider the 28-lead LFCSP package constraints for PCB layout. Evaluate the need for multiple LED channels and the specific sampling frequency requirements against the device's operational limits.

Part Context

This part belongs to the ADPD1080/ADPD1081 family of photometric front ends designed for health monitoring. It complements other Analog Devices sensors by providing a complete solution for optical signal acquisition, including LED driving and analog-to-digital conversion in a compact form factor.

Replacement Considerations

The ADPD1081 serves as a functional alternative with SPI interface instead of I2C. Verify pinout compatibility and register mapping differences when substituting. Ensure the replacement meets the same thermal and electrical specifications required by the design.