SKU: SENS-0147
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Analog Devices MAX30101EFD+T Pulse Oximeter & Heart-Rate Sensor IC, I²C, OESIP-14

₹1,829.00 (Inclusive of all taxes)
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The Analog Devices MAX30101EFD+T is a fully integrated optical pulse oximetry and heart-rate monitoring sensor IC in an OESIP-14 package. It features an I²C interface for seamless integration with microcontrollers like Arduino, ESP32, and STM32, providing reflective PPG sensing for wearable health and fitness applications.

Features

  • Integrated reflective PPG sensor for heart-rate (HR) and SpO₂ (blood oxygen) monitoring.
  • Ultra-low power operation with programmable LED current and sample rate, ideal for battery-powered wearables.
  • Standard I²C digital interface for easy microcontroller communication and data acquisition.
  • Robust ambient light rejection and high signal-to-noise ratio for accurate readings.
  • Wide operating temperature range from -40°C to +85°C for reliable performance in various environments.

Out of stock

Description

The MAX30101EFD+T is a monolithic optical sensor that combines red and infrared LEDs, a photodetector, and advanced analog signal conditioning in a single, compact OESIP package. It utilizes a reflective photoplethysmography (PPG) principle to detect blood volume changes in microvascular tissue, enabling non-invasive measurement of heart rate and arterial oxygen saturation.

Engineered for wearable electronics, the IC features a low-noise signal chain with ambient light cancellation, ensuring stable data even under varying light conditions. Its programmable architecture allows developers to optimize power consumption versus measurement fidelity, supporting everything from continuous monitoring to intermittent sampling in fitness trackers, smartwatches, and portable medical devices.

Key Features

  • Complete optical HRM and SpO₂ sensor system-in-package (SiP) with integrated LEDs and photodiode.
  • Separate core (1.7V-2.0V) and LED driver (up to 5V) supplies for flexible power management.
  • Extremely low shutdown current of 0.7µA (typical) maximizes battery life in portable applications.
  • High-performance analog front-end with 18-bit ADC and programmable gain for precise signal capture.
  • Industry-standard I²C digital output simplifies firmware development and system integration.
  • Compact OESIP-14 package (5.6mm x 3.3mm) minimizes PCB footprint for space-constrained designs.
  • RoHS compliant construction ensures environmental regulatory compliance.

Applications

  • Wrist-worn fitness trackers and smartwatches for continuous heart-rate and SpO₂ monitoring.
  • Clinical-grade portable pulse oximeters and remote patient monitoring (RPM) devices.
  • Wearable wellness and sleep quality assessment gadgets with advanced biometric tracking.
  • Embedded health monitoring systems in sports equipment and VR/AR headsets.
  • Prototyping and development of next-generation battery-operated medical IoT sensors.

Technical Specifications

Manufacturer Part NumberMAX30101EFD+T
Sensor TypeOptical Pulse Oximeter & Heart-Rate (PPG)
Core Supply Voltage1.7V – 2.0V
LED Supply VoltageUp to 5V
Communication InterfaceI²C Compatible
Operating Temperature Range-40°C to +85°C
Shutdown Current (Typical)0.7 µA
Package TypeOESIP-14
Dimensions (L x W)5.6 mm x 3.3 mm
Weight0.129 g

Frequently Asked Questions

What is the core operating voltage range for the MAX30101EFD+T?

The core analog and digital circuitry of the MAX30101EFD+T requires a supply voltage between 1.7V and 2.0V. The LED drivers, however, can be powered separately by a supply of up to 5V, allowing for brighter LED pulses without affecting the sensitive signal processing core.

How do I communicate with this sensor using a microcontroller?

The sensor features a standard I²C serial communication interface. You simply need to connect the SDA and SCL pins to your microcontroller's corresponding I²C pins, along with the appropriate pull-up resistors. All configuration settings and sampled data are accessed through the I²C register map provided in the datasheet.

Can this sensor be used for continuous monitoring in a battery-powered device?

Yes, the MAX30101EFD+T is specifically designed for ultra-low-power wearable applications. Its programmable sample rate and LED current allow you to balance measurement accuracy with power consumption. Furthermore, it includes a dedicated shutdown mode with a typical current draw of only 0.7µA, enabling significant battery life extension during idle periods.

What type of optical sensing does the MAX30101 use?

It uses reflective photoplethysmography (PPG). The integrated red and infrared LEDs illuminate the skin, and the built-in photodetector measures the light reflected back from the blood vessels. Changes in blood volume with each heartbeat modulate the reflected light, allowing calculation of heart rate and blood oxygen saturation (SpO₂).

Package Includes

  • 1 x Analog Devices MAX30101EFD+T Pulse Oximeter & Heart-Rate Sensor IC

Additional Information

Weight 0.000129 kg
Dimensions 0.56 × 0.33 cm