ADPD1081
RECOMMENDED FOR NEW DESIGNSPhotometric Front Ends
- Part Models
- 1
- 1ku List Price
- Starting From $3.22
Part Details
- Multifunction photometric front end
- Fully integrated AFE, ADC, LED drivers, and timing core
- Enables ambient light rejection capability without the need for photodiode optical filters
- Three 370 mA LED peak current 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 0.122Hz to 2700 Hz
- FIFO data operation
- Qualified for automotive applications
The ADPD1080/ADPD1081 are highly efficient, photometric front ends, each with an integrated 14-bit analog-to-digital converter (ADC) and a 20-bit burst accumulator that works with flexible light emitting diode (LED) drivers. The ADPD1080/ADPD1081 stimulate an LED and measures the corresponding optical return signal. The data output and functional configuration occur over a 1.8 V I2C interface on the ADPD1080 or a serial port interface (SPI) on the ADPD1081. The control circuitry includes flexible LED signaling and synchronous detection.
The analog front end (AFE) features rejection of signal offset and corruption due to modulated interference commonly caused by ambient light without the need for optical filters or dc cancellation circuitry that requires external control.
Couple the ADPD1080/ADPD1081 with a low capacitance photodiode of <100 pF for optimal performance. The ADPD1080/ADPD1081 can be used with any LED. The ADPD1080 is available in a 16-ball, 2.46 mm × 1.4 mm WLCSP and a 28-lead, 4 mm × 4 mm LFCSP. The SPI only version, ADPD1081, is available in a 17-ball, 2.46 mm × 1.4 mm WLCSP.
Applications
- Wearable health and fitness monitors
- Clinical measurements, for example, SpO2
- Industrial monitoring
- Background light measurements
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
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 Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADPD1081BCBZR7 | 17-Ball WLCSP |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ADPD1080 | RECOMMENDED FOR NEW DESIGNS | Photometric Front Ends |
Evaluation Kits
ADPD1080 Evaluation Board