MAX8614AETD+ Encyclopedia Entry

Product Overview

The MAX8614AETD+ belongs to the category of integrated optical modules and is specifically designed for use in wearable health and fitness devices. This product is characterized by its compact package, high precision, and low power consumption. The MAX8614AETD+ is available in a small 2.048mm x 1.600mm wafer-level package, making it suitable for space-constrained applications. It is an essential component for monitoring various physiological parameters, such as heart rate and blood oxygen saturation. The MAX8614AETD+ is typically supplied in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Operating Voltage: 1.7V to 2.0V
• Operating Temperature Range: -40°C to +85°C
• LED Current: Up to 45mA
• Photodetector Current: Up to 50μA
• Sampling Rate: Up to 128sps
• Communication Interface: I2C

Detailed Pin Configuration

The MAX8614AETD+ features a total of 15 pins, including power supply, communication, and signal pins. The pin configuration is as follows:

| Pin Number | Name | Description | |------------|---------------|---------------------------------------| | 1 | VIN | Power Supply Input | | 2 | SCL | I2C Serial Clock | | 3 | SDA | I2C Serial Data | | 4 | INTB | Interrupt Output | | 5 | LEDGND | LED Ground | | 6 | LEDANODE | LED Anode | | 7 | LEDCATHODE | LED Cathode | | 8 | PDGND | Photodetector Ground | | 9 | PDANODE | Photodetector Anode | | 10 | PDCATHODE | Photodetector Cathode | | 11 | GND | Ground | | 12 | NC | No Connection | | 13 | NC | No Connection | | 14 | NC | No Connection | | 15 | NC | No Connection |

Functional Features

The MAX8614AETD+ integrates red and infrared LEDs, as well as a high-sensitivity photodetector, enabling accurate measurement of heart rate and blood oxygen levels. It also includes an interrupt output for real-time event notification and operates at a low sampling rate to minimize power consumption.

Advantages and Disadvantages

Advantages

• Compact form factor
• Low power consumption
• High precision measurements
• Real-time event notification

Disadvantages

• Limited to specific health and fitness applications
• Requires careful design integration for optimal performance

Working Principles

The MAX8614AETD+ utilizes the principles of photoplethysmography (PPG) to measure changes in blood volume. The integrated LEDs emit light into the skin, and the photodetector captures the reflected or transmitted light. By analyzing the variations in light absorption, the device can accurately determine heart rate and blood oxygen saturation levels.

Detailed Application Field Plans

The MAX8614AETD+ is ideally suited for integration into wearable health and fitness devices, including smartwatches, fitness bands, and medical monitoring patches. Its compact size and low power consumption make it suitable for continuous and non-intrusive physiological monitoring.

Detailed and Complete Alternative Models

• MAX30102: A similar integrated optical module with comparable functionality and performance.
• Si1143: Offers proximity sensing in addition to PPG functionality, suitable for more diverse applications.

In conclusion, the MAX8614AETD+ is a highly specialized component designed for precise physiological monitoring in wearable devices. Its compact size, low power consumption, and high precision make it an ideal choice for health and fitness applications.

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