Ultra-Low-Power, Optical PPG and Single-Lead ECG AFE

The MAX86176 is a complete photoplethysmogram (PPG) and electrocardiogram (ECG) analog front-end (AFE) solution for wearable applications. The MAX30005 is a complete AFE solution for ECG only. Both AFEs offer high performance for fitness and clinical applications with ultra-low power for long battery life.

Both MAX86176 and MAX30005 feature an ECG channel, EMI filtering, internal-lead biasing, AC and DC lead-off detection, right-leg drive, ultra-low power DC lead-on detection during standby mode, and extensive calibration voltages for built in self-test. In addition, the MAX86176 has a PPG data acquisition system supporting up to 6 LEDs and 4 photodiode inputs, which is fully synchronized with the ECG signal path. The MAX86176/MAX30005 can operate with either internal or external clock. The MAX86176/MAX30005 are designed to meet IEC 60601-2-47 Ambulatory ECG Systems monitoring compliance for even the most challenging dry electrode applications.

The MAX86176/MAX30005 are available in a 6x6 36-bump wafer-level packages (WLP), operating over the -40ºC to +85ºC temperature range.

Applications

* PPG (MAX86176): Wearable Devices for Fitness, Wellness and Medical Applications with Clinical Accuracy * PPG (MAX86176): Suitable for Wrist, Finger, Ear and Other Locations * PPG (MAX86176): Optimized Performance to Detect Heart Rate, Oxygen Saturation (SpO2), Muscle and Tissue Oxygen Saturation(SmO2 and StO2), and Body Hydration * ECG (MAX86176/MAX30005): Single-Lead Event Monitors for Atrial Fibrillation (AFib) and other Arrhythmia Detection * ECG (MAX86176/MAX30005): Single-Lead Wireless Patches for At-Home/In-Hospital Monitoring * ECG (MAX86176/MAX30005): Chest-Band Heart-Rate Monitors for Fitness Applications * ECG (MAX86176/MAX30005): Biometric Authentication and ECG-on-Demand Applications * PPG-ECG SYNC (MAX86176): Fully Synchronized PPG and ECG Signal Path for PTT Measurements

* Complete Dual-Channel Optical-Data Acquisition System

* Ultra-Low-Power Operation for Wearable Devices

* Optical Readout Channel < 11μA (typ) at 25fps

* 14.6μs to 117.1μs ADC Integration Time

* Low Shutdown Current < 1μA (typ)

* Signal to Noise Ratio (SNR) up to 110dB with Average (Avg) Mode and Off-Chip Filtering

* Supports Frame Rates from 1fps to 2kfps

* High-Resolution 20-bit Charge-Integrating ADCs

* Low Dark-Current Noise of < 50pARMS

* Excellent Ambient Range and Rejection Capability

* > 100μA Ambient Photodiode Current

* > 90dB Ambient Rejection at 120Hz (Avg > 2)