Manufacturer: Pixart

Datasheet: PAH8136HU-IN

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Product Detail

The PAH8136HU-IN by Pixart is a health management sensor designed for wearable applications. It can acquire PPG signals under various wavelengths and supports up to 4 LED drivers for different PPG channels and wavelengths. The sensor consumes only 85µA of typical current during heart rate detection, including the sensor and LED. It supports multiple chip connections and is suitable for detecting heart rate and SpO2 from wristbands and watches. The package size is 3.3 x 3.2 x 0.68 mm, and it supports green, red, and IR wavelengths. The sensor includes an IR touch sensing function and is available for mass production.

Pixart PAH8136HU-IN sensor for wearables: detects heart rate and SpO2, supports multiple wavelengths and LED drivers, low power consumption, compact size, IR touch sensing.

Features & Benefits

  • Ability to acquire PPG signals under a variety of wavelengths
  • Up to 4 LED drivers to support arbitrary combinations of PPG channels and different wavelengths of LEDs
  • Ultimately low current consumption that consumes only 85µA of typical current during heart rate detection (incl. sensor and LED)
  • Support multiple connections of chips
  • Suitable for wearable applications, including the detection of heart rate and SpO2 from wristbands/watches

Technical Specifications

Package Size (mm)3.3 x 3.2 x 0.68
Typical CurrentPPG Mode (20Hz): 60µA
No. of LED Drivers4
PPG Wavelength SupportedGreen, Red, IR
Built-in LED for PPGNo
IR Touch Sensing FunctionYes, by IR light
AvailabilityMass Production



PixArt Imaging Inc. is a CMOS imaging sensing and navigation company offering a broad selection of sensors and technologies to support today’s complex human-machine interface designs. PixArt specializes in CMOS image sensors (CIS), capacitive touch controllers and related imaging application development.

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