ADPD103

NOT RECOMMENDED FOR NEW DESIGNS

Photometric Front End

Data Sheet (Rev. B) Product Selection Table

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Part Details

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

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.