Clinical-Grade AFE with Integrated Measurement Systems for Synchronized Measurement of ECG, Heart Rate, SpO2, and Respiration Rate

Published  September 21, 2021   0
S Staff
MAX86178 Triple-System Vital Signs AFE

Analog Devices, Inc. has introduced a single-chip analog front end (AFE) MAX86178 that integrates three measurement systems (optical, ECG and bio-impedance) to obtain four vital signs (electrocardiogram, heart rate, SpO2 and respiration rate). The MAX86178 AFE enables synchronized optical PPG and ECG timing for derived health metrics and permits small vital signs devices by fitting those multiple functions into a 2.6mm x 2.8mm package. Moreover, to enable ultra-low power features, the MAX86178 AFE provides each subsystem with configurable options to optimize battery life for specific use cases.

With three clinical-grade subsystems integrated into one IC, the MAX86178 triple system AFE replaces discrete implementations by integrating an optical PPG sub-system to measure heart rate and SpO2, a single lead ECG sub-system, as well as a biopotential and bioimpedance (BioZ) sub-system to measure respiration rate.

MAX86178 Triple-System Vital Signs AFE Features and Benefits:

  • Small Size: Replaces medical facility grade monitoring systems with body-worn devices
  • Simplified Design: By integrating and synchronizing three different measurement systems to measure four vital signs, it simplifies design and enables even more complicated derivative vital signs monitoring

In addition, Analog Devices offers the MAX20343 buck-boost regulator and the MAX20360 power management IC as power solutions optimized for the MAX86178.