MAX86177ENI+T

Analog Front End (AFE) Overview

The MAX86177ENI+T is a four-channel analog front-end (AFE) designed for photoplethysmography (PPG) applications. It features four independent optical readout channels, each equipped with a 20-bit analog-to-digital converter (ADC). The device integrates high-current LED drivers and supports multiple wavelengths for advanced biometric sensing. It operates on a 1.8V main supply and a separate LED driver supply range of 3.1V to 5.5V. The component utilizes a 28-bump wafer-level package (WLP) measuring 2.83mm by 1.89mm.

Analog Front End (AFE) Feature Summary

• Four-channel PPG analog front-end architecture with integrated 20-bit ADCs
• High-current programmable LED drivers supporting multi-wavelength operation
• Ultra-low-power design optimized for wearable health monitoring devices
• Compact 28-bump WLP package facilitating small form-factor integration

Analog Front End (AFE) Applications

• Pulse oximetry sensors
• Heart rate monitors
• Blood oxygenation measurement systems
• Wearable biometric tracking devices

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration when sourcing. Confirm that the '+T' designation aligns with lead-free manufacturing standards required by your assembly process. Ensure compatibility with the 28-bump WLP footprint during PCB layout validation. Cross-reference the manufacturer's latest documentation for any updates regarding environmental compliance or recommended soldering profiles.

Analog Front End (AFE) Selection Notes

Select this component when a multi-wavelength optical sensing solution is required within a constrained board area. The four-channel capability allows for simultaneous data acquisition from different LEDs, enhancing signal processing accuracy. Consider the 20-bit resolution for high-precision low-signal applications. Evaluate the power budget against the 1.8V core and 3.1V-5.5V LED supply requirements to ensure efficient system design.

Analog Front End (AFE) Part Context

This part belongs to the MAX861xx series of optical AFEs from Analog Devices/Maxim Integrated. It shares architectural similarities with the MAX86171 but offers increased channel count. The series targets the growing market for non-invasive health monitoring wearables. The WLP package technology enables integration into slim-profile devices where traditional QFN packages would be too bulky.

Analog Front End (AFE) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.