Overview

Features and Benefits

  • 3.8 mm × 5.0 mm × 0.9 mm module with integrated optical components
  • 2 green LEDs, 2 PDs with IR cut filter
  • 2 external sensor inputs
  • 3, 370 mA LED drivers
  • 20-bit burst accumulator enabling 20 bits per sample period
  • On-board sample to sample accumulator enabling up to 27 bits per data read
  • Custom optical package made to work under a glass window
  • Optimized SNR for signal limited cases
  • I2C or SPI communications

Product Details

The ADPD188GG is a complete photometric system designed to measure optical signals from ambient light and from synchronous reflected light emitting diode (LED) pulses. Synchronous measurement offers best-in-class rejection of ambient light interference, both dc and ac. The module integrates a highly efficient photometric front end, two LEDs, and two photodiode (PD). All of these items are housed in a custom package that prevents light from going directly from the LED to the photodiode without first entering the subject.

The front end of the application specific integrated circuit (ASIC) consists of a control block, a 14-bit analog-to-digital converter (ADC) with a 20-bit burst accumulator, and three flexible, independently configurable LED drivers. The control circuitry includes flexible LED signaling and synchronous detection. The analog front end (AFE) features best-in-class rejection of signal offset and corruption due to modulated interference commonly caused by ambient light. The data output and functional configuration occur over a 1.8 V I2C interface or a serial peripheral interface (SPI) port.

Applications

  • Optical heart rate monitoring
  • Reflective SpO2 measurement
  • CNIBP measurement 

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Discussions

ADPD188GG Discussions

Re: About ADPD188GG PPG solution
9 week(s) ago in Optical Sensing
About ADPD188GG PPG solution
9 week(s) ago in Optical Sensing
Heart rate Optical Module
18 week(s) ago in Optical Sensing
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.