MAX301CSE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Biomedical Sensor
• Characteristics: High-performance, compact size, low power consumption
• Package: Surface Mount Technology (SMT)
• Essence: Optical Pulse Oximeter and Heart-Rate Sensor
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 1.8V - 3.3V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Digital I²C Interface
• LED Drive Current: Up to 50mA
• Photodetector Type: Ambient Light Cancellation
• Sampling Rate: Up to 3200 samples per second

Pin Configuration

The MAX301CSE has a total of 14 pins. The pin configuration is as follows:

1. VDD - Power supply voltage
2. GND - Ground
3. SDA - Serial Data Line for I²C communication
4. SCL - Serial Clock Line for I²C communication
5. INT - Interrupt output pin
6. RD - Red LED drive current control
7. IRD - Infrared LED drive current control
8. RLED+ - Positive terminal of the red LED
9. RLED- - Negative terminal of the red LED
10. IRLED+ - Positive terminal of the infrared LED
11. IRLED- - Negative terminal of the infrared LED
12. PD - Photodetector output
13. AGND - Analog ground
14. AVDD - Analog power supply voltage

Functional Features

• Integrated optical sensor for heart-rate monitoring and pulse oximetry
• Ambient light cancellation for accurate readings in various lighting conditions
• Low power consumption for extended battery life
• Compact size for easy integration into wearable devices
• Digital I²C interface for simple communication with microcontrollers

Advantages and Disadvantages

Advantages: - Accurate and reliable heart-rate monitoring and pulse oximetry - Compact size allows for integration into small devices - Low power consumption extends battery life - Ambient light cancellation ensures accurate readings in different environments

Disadvantages: - Limited to optical sensing, may not be suitable for other types of biomedical measurements - Requires external microcontroller for data processing and analysis

Working Principles

The MAX301CSE utilizes optical sensing technology to measure heart rate and blood oxygen saturation levels. It emits both red and infrared light through the skin and measures the amount of light that is absorbed by the blood. By analyzing the variations in light absorption, it can determine the heart rate and oxygen saturation levels.

Detailed Application Field Plans

The MAX301CSE is widely used in various applications, including:

1. Fitness trackers and smartwatches for continuous heart-rate monitoring during physical activities.
2. Medical devices such as pulse oximeters for measuring blood oxygen saturation levels in hospitals and clinics.
3. Sleep monitoring devices to track sleep quality and detect sleep disorders.
4. Sports performance monitoring to analyze heart rate variability and optimize training routines.
5. Remote patient monitoring systems for real-time health monitoring and early detection of abnormalities.

Detailed and Complete Alternative Models

1. MAX30102 - Similar functionality with additional features like temperature measurement.
2. MAX30105 - Provides ambient light cancellation and proximity sensing capabilities.
3. MAX30112 - Designed specifically for wearable applications with ultra-low power consumption.

These alternative models offer similar functionality to the MAX301CSE but may have additional features or different package options to suit specific application requirements.

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