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ADPD105/ADPD106/ADPD107: Photometric Front Ends Data Sheet (Rev. A)8/4/2016PDF875 K
Overview
Features and Benefits
- Multifunction photometric front end
- Fully integrated AFE, ADC, LED drivers, and timing core
- Enables best-in-class ambient light rejection capability without the need for photodiode optical filters
- Three 370 mA LED drivers
- Flexible, multiple, short LED pulses per optical sample
- 20-bit burst accumulator enabling 20 bits per sample period
- On-board sample to sample accumulator, enabling up to 27 bits per data read
- Low power operation
- SPI, I2C interface, and 1.8 V analog/digital core
- Flexible sampling frequency ranging from 0.122 Hz to 3820 Hz
- FIFO data operation
Product Details
The ADPD105/ADPD106/ADPD107 are highly efficient, photometric front ends, each with an integrated 14-bit analogto-digital converter (ADC) and a 20-bit burst accumulator that works with flexible light emitting diode (LED) drivers. The accumulator is designed to stimulate an LED and measure the corresponding optical return signal. The data output and functional configuration occur over a 1.8 V I2C interface on the ADPD105 or SPI on the ADPD106 and ADPD107. 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.
Couple the ADPD105/ADPD106/ADPD107 with a low capacitance photodiode of <100 pF for optimal performance. The ADPD105/ADPD106/ADPD107 can be used with any LED. The ADPD105 is available in a 2.46 mm × 1.4 mm WLCSP and a 4 mm × 4 mm LFCSP. The SPI only versions, ADPD106 and ADPD107, are available in a 2.46 mm × 1.4 mm WLCSP.
Applications
- Wearable health and fitness monitors
- Clinical measurements, for example, SpO2
- Industrial monitoring
- Background light measurements
Product Lifecycle
Not Recommended for New Designs
This designates products ADI does not recommend broadly for new designs.
Evaluation Kits (1)
Documentation & Resources
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 |
|---|---|---|---|---|
| ADPD106BCBZR7 | Material Declaration | Reliability Data | 16-Ball WLCSP (1.4mm x 2.46mm) | |
| Wafer Fabrication Data |
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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.