MAX86176 Ultra-Low-Power, Optical PPG and Single-Lead ECG AFE

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MAX86176

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

Enables HR, SpO₂, Afib Detection, and Pulse Transit-Time for Wearable Health

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Product Details

See parametric specs for Bio-Sensors

Key Features

Applications/Uses

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Parametric specs for Bio-Sensors

I_SUPPLY (µA) (typ)	11
V_SUPPLY (V) (min)	1.7
V_SUPPLY (V) (max)	2
Resolution (bits) (ADC)	19
SNR (dB)	109
Package/Pins	THIN WLP/36
Budgetary Price (See Notes)	4.5

See parametric specs for Bio-Sensors

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MAX86171	Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE for Wearable Health

Technical Docs

Data Sheet

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

Oct 22, 2020

Design & Development

Click any title below to view the detail page where available.

Evaluation Board

MAX86176EVSYS

$150.00

Description

The MAX86176 evaluation kit (EV kit) provides a platform to evaluate the functionality and features of the MAX86176 with photoplethysmogram (PPG) and electrocardiogram (ECG) measurement capabilities. The EV kit allows for flexible hardware and software configurations to help the user quickly learn how to configure and optimize the MAX86176 for their own applications.

The MAX86176 is a complete PPG and ECG analog front-end solution that consists of two optical readout channels and one single-lead ECG channel that can operate simultaneously. The optical readout channels support up to 6 LEDs and 4 photodiode inputs.

The MAX86176 EV kit consists of two boards. MAXSENSORBLE_HEADER_EVKIT_A is the microcontroller (MCU) board while MAX86176_EVKIT_A is the sensor board containing the MAX86176. To enable PPG and ECG measurement capabilities, the sensor board also contains 3 LEDs (red, green, and IR), 3 discrete photodiodes (Vishay VEMD8080), a 3 LED, 1 photodiode module (Osram SFH7050), and component configurations on the ECG channel. The EV kit can be powered through USB connection to PC using a USB-C to USB-A cable or a LiPo Battery. The EV kit relays data using Bluetooth through the Cypress USB Bluetooth LE dongle. The EV kit contains with the latest firmware but comes with the programming circuit board MAXREFDES100HDK in case a firmware change is needed.

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Features

Convenient Platform to Evaluate the MAX86176
Many Easy-to-Reach Test Points
Real-Time Monitoring and Plotting
Data Logging Capabilities
Bluetooth™ LE
Windows® 10 Compatible GUI software
Facilitates IEC 60601-2-47 Compliance Testing

SYSTEM BOARD

MAXREFDES104#: Health Sensor Platform 3.0

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Parameters

Parametric specs for Bio-Sensors

I_SUPPLY (µA) (typ)	11
V_SUPPLY (V) (min)	1.7
V_SUPPLY (V) (max)	2
Resolution (bits) (ADC)	19
SNR (dB)	109
Package/Pins	THIN WLP/36
Budgetary Price (See Notes)	4.5

See parametric specs for Bio-Sensors

Key Features

PPG (MAX86176)

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 < 50pA_RMS
Excellent Ambient Range and Rejection Capability
- > 100μA Ambient Photodiode Current
- > 90dB Ambient Rejection at 120Hz (Avg > 2)

ECG (MAX86176/MAX30005)

Clinical-Grade ECG AFE with High-Resolution ADC
- 15.6 ENOB with 0.6μV_RMS Noise over 0.05Hz to 40Hz
Very Low Input-Bias Current (-40°C to +85°C)
- 233fA_RMS Input-Current Noise (0.05Hz to 40Hz, T_A = +25°C)
Fully Differential Input Structure with CMRR > 110dB at Power-Line Frequencies
High-Input Impedance > 1GΩ for Extremely Low Common to Differential-Mode Conversion
High DC-Offset Range of ±1300mV (typ 1.8V) Allows a Wide Variety of Electrodes to be Used
High AC-Dynamic Range of > 90mV_P-P Helps Prevent Saturation in the Presence of Motion
ECG Biopotential Channel Can Be Used for Some EEG Applications
- Higher-Gain Ranges Available (480V/V, 960V/V)
- Low Input-Referred Voltage and Current Noise Enables Use of Small-Area Dry Electrodes

SYSTEM

Shutdown Current of 0.5μA (typ)
256-Word FIFO for ECG and PPG
True Synchronous ECG and PPG Data from Dedicated Signal Paths
Two Fully Configurable Interrupts
High-Speed SPI Interface or I²C Interface
Small 2.728mm x 2.708mm WLP Package

Applications/Uses

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

Description

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.

Technical Docs

Data Sheet

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

Oct 22, 2020

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

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INTERACTIVE Data Sheet

MAX86176

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

Product Details

Key Features

Applications/Uses

Similar products you might be interested in

Technical Docs

Design & Development

Support & Training

Parameters

Key Features

Applications/Uses

Description

Technical Docs

Support & Training

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