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.
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 |
