ADPD103

NOT RECOMMENDED FOR NEW DESIGNS

Photometric Front End

Data Sheet (Rev. B) Product Selection Table

Part Models: 3
1ku List Price: Starting From $3.22

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Overview

Multifunction photometric front end
Fully integrated AFE, ADC, LED drivers, and timing core
Usable in a broad range of optical measurement applications, including photoplethysmography
Enables best-in-class ambient light rejection capability without the need for photodiode optical filters

Three 8 mA to 250 mA LED drivers

Separate data registers for each LED//photodiode combination

1 to 8 optical inputs

Flexible, multiple, short LED pulses per optical sample

20-bit burst accumulator enabling 20 bits per sample period

See data sheet for additional features

The ADPD103 is a highly efficient photometric front end with an integrated 14-bit analog-to-digital converter (ADC) and a 20-bit burst accumulator that works in concert with flexible light emitting diode (LED) drivers. It 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. 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 ADPD103 with a low capacitance photodiode of <100 pF for optimal performance. The ADPD103 can be used with any LED.

Aplications

Body worn health and fitness monitors, for example, heart rate monitoring
Clinical measurements, for example, SpO₂
Industrial monitoring
Background light measurements

Part Models: 3
1ku List Price: Starting From $3.22

Documentation

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
ADPD103BCBZRL7	16-Ball WLCSP (1.4mm x 2.46mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADPD103BCPZ	28-Lead LFCSP (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
ADPD103BCPZRL	28-Lead LFCSP (4mm x 4mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 5, 2022 - 21_0271 Qualification of an Alternate Adhesive Material and Molding Compound for Select LFCSP Packages
		PCN21_0271_Form Material_Report Detailed Change Description Qualification Results Summary
ADPD103BCPZ
ADPD103BCPZRL
Oct 18, 2016 - 16_0036 Assembly Relocation to Stats ChipPAC Jiangyin and Test Transfer to Stats ChipPAC Singapore of Select LFCSP Products
		PCN16_0036_Form Material_Report Qualification Results Summary Qualification Results Summary Qualification Results Summary Test Correlation Report
ADPD103BCPZ
ADPD103BCPZRL

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Evaluation Kits

ADPD103 Evaluation Board

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Features and Benefits

Supports the detection of UART
UDP Transfer Capability
ADPD103 full configuration
- Register Level
- Parameter Level
Graph View
- Time Graph
- Frequency Graph

Product Details

The EVAL-ADPD103Z-GEN evaluation board provides the user with a simple means of connecting their own optics to the ADPD103 photometric front end to evaluate the ADPD103 in a number of different applications, from vital signs monitoring to industrial sensing. The evaluation board includes the OpenMarket WaveTool graphical user interface (GUI) that provides the user with low level and high level configurability, real-time frequency and time domain analysis, and User Datagram Protocol (UDP) transfer capability so that the evaluation board can easily interface to the user’s development system.

The USB port powers the EVAL-ADPD103Z-GEN. On-board voltage regulators provide voltage supplies for the ADPD103, ADuCM360, and FTDI Chip FT232. There are on-board regulators that provide 3.3 V and 4.3 V LED supplies, as well as a selectable option to add an external LED supply. The evaluation board provides an LED and photodiode (PD) for a finger photo-plethysmography (PPG) measurement that is useful for a quick functionality check of the evaluation system.

The schematic and board layout, as well as the board itself, indicate signal names for easy identification. For additional information on the functionality of the ADPD103, refer to the ADPD103 datasheet.