MAX86176ENX+

Analog Front End (AFE) Overview

The MAX86176ENX+T is an Analog Front End (AFE) integrating Photoplethysmography (PPG) and Electrocardiogram (ECG) capabilities for wearable applications. It operates on a supply voltage range of 1.7 V to 2 V with a resolution of 19 bits. The device features a Signal-to-Noise Ratio (SNR) of 109 dB and functions within a temperature range of -40°C to +85°C. Packaged in a WLP-36 format, it supports single-lead ECG monitoring and multi-wavelength optical sensing.

Analog Front End (AFE) Feature Summary

• Integrated PPG and ECG AFE with fully synchronized signal paths for Pulse Transit Time (PTT) measurement
• Clinical-grade ECG performance with 15.6 ENOB and 0.6 μVRMS noise at 0.05Hz to 40Hz
• Optical system supporting up to 6 LEDs and 4 photodiodes with SNR up to 110 dB
• Compliance with IEC 60601-2-47 standards for mobile ECG systems

Analog Front End (AFE) Applications

• Wearable fitness and health devices requiring clinical precision
• Single-lead wireless patches for home or hospital monitoring
• Chest strap heart rate monitors for athletic applications
• Devices measuring SpO2, SmO2, StO2, and body water content

Analog Front End (AFE) Procurement Notes

Verify the suffix 'T' indicates reel packaging when ordering. Confirm RoHS compliance status through official documentation. Check current availability as distribution may be restricted. Ensure the WLP-36 package footprint matches the PCB design constraints.

Analog Front End (AFE) Selection Notes

Select this component for designs requiring simultaneous PPG and ECG data acquisition. The low power consumption of optical channels (<11μA) suits battery-operated wearables. Consider the 6x6 mm package size for space-constrained form factors like wristbands or finger clips.

Analog Front End (AFE) Part Context

This part belongs to the MAX861xx family of biometric sensors. It complements the MAX30005 by adding integrated optical sensing capabilities while sharing similar ECG front-end architectures. The evaluation kit MAX86176EVSYS# is available for development purposes.

Analog Front End (AFE) Replacement Considerations

The MAX30005 serves as a related alternative but lacks integrated PPG functionality, offering only ECG capabilities. Designers requiring combined optical and electrical biosensing must retain the MAX86176 architecture.