ADPD188GG
Integrated Optical Module with Ambient Light Rejection and Two LEDs
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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 PPG measurement
- CNIBP measurement
Product Categories
Markets and Technologies
Product Lifecycle
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)
Documentation & Resources
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UG-1256: Evaluating the ADPD188GG Optical Module (Rev. 0)4/3/2018PDF704 K
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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ADPD188GG-ACEZR7 | Material Declaration | Reliability Data | 24-Lead LGA_CAV (3.8mm x 5mm x 0.9mm) | |
| ADPD188GG-ACEZRL | Material Declaration | Reliability Data | 24-Lead LGA_CAV (3.8mm x 5mm x 0.9mm) | |
| Wafer Fabrication Data |
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List Pricing
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Evaluation Boards
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Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.