T&M MAX30102: Pulse Oximeter and Heart Rate Sensor IC
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This page covers the Pulse Oximeter IC or Heart Rate Sensor IC from Maxim, designed for pulse oximetry and heart rate monitoring solutions. We’ll delve into the pin diagram and specifications of this IC. We will also explore benefits of pulse oximeter.
Maxim Integrated has developed the MAX30102 IC, which functions as both a pulse oximetry and heart rate monitor module. It’s commonly found in mobile and fixed wearable devices, serving as a helpful fitness aid. A key feature is its low power consumption.
This single package integrates:
- Photo detectors
- LEDs
- Optical elements
- Low Noise Electronics that filters out ambient light
The MAX30102 operates on a 1.8V power supply, while the LEDs require a separate 5V supply.
Pulse Oximeter and Heart rate sensor
The image above shows the pin diagram of the MAX30102 IC, which can be used as a pulse oximeter or heart rate sensor.
Pin Diagram Description
The following table provides a description of each pin on the device:
| Pin Number | Pulse Oximeter IC description |
|---|---|
| 1, 7, 8, 14 | NC (No connection) |
| 2 | SCL (I²C Clock input) |
| 3 | SDA (I²C Data, bidirectional) |
| 4 | Power ground |
| 5 | R_DRV (Red LED Driver) |
| 6 | IR_DRV (Infrared LED driver) |
| 9, 10 | VLED+, LED power supply |
| 11 | VDD, analog power supply |
| 12 | GND, analog ground |
| 13 | INT’, active low interrupt |
Benefits of pulse oximeter
Following are some of the advantages of pulse oximeter.
- Measures oxygen saturation (SpO₂) and pulse rate without the need for blood samples.
- Helps identify low oxygen levels, preventing severe respiratory complications.
- Compact, light weight, and user friendly for home and clinical use.
- Provides instant readings, making it useful for continuous monitoring of patients.
- Beneficial for individuals with asthma, COPD, pneumonia and COVID-19.
- Monitors oxygen levels for mountaineers, pilots, and endurance athletes.
- Assists in Sleep Apnea Monitoring : Helps detect oxygen level fluctuations during sleep, aiding in diagnosis.
- Helps in Anesthesia and Surgery by ensuring proper oxygen levels during and after medical procedures.
- Some models include alarms for critical oxygen levels, prompting quick intervention.
- Affordable and Widely Available
Conclusion
A pulse oximeter is a vital health device that provides quick and non-invasive oxygen level and heart rate monitoring. It is essential for managing respiratory conditions, ensuring patient safety and optimizing athletic performance. Regular use can help in early detection of health issues, making it a valuable tool for both medical professionals and individuals.
