ADPD1080
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ADPD1080

Photometric Front Ends

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Part Details
Part Models 4
1ku List Price Starting From $3.22
Features
  • 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
Additional Details
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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
Part Models 4
1ku List Price Starting From $3.22

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADPD1080BCBZR7
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ADPD1080BCPZ
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ADPD1080BCPZR7
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ADPD1080WBCPZR7
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Evaluation Kit

Evaluation Kits 2

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EVAL-ADPD1081Z-PPG

ADPD1080 Evaluation Board

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EVAL-ADPD1081Z-PPG

ADPD1080 Evaluation Board

ADPD1080 Evaluation Board

Features and Benefits

  • Supports the detection of UART
  • UDP transfer capability
  • ADPD1080/ADPD1081 full configuration
    • Register level
    • High level
  • Graph view
    • Time graph
    • Frequency graph

Product Detail

The EVAL-ADPD1081Z-PPG evaluation board provides users with a simple means of evaluating the ADPD1080/ADPD1081 photometric front end with an optimized discrete optical design for vital signs monitoring applications. The evaluation system includes the Applications Wavetool graphical user interface (GUI) that provides users with low level and high level configurability, real-time frequency and time domain analysis, and user datagram protocol (UDP) transfer capability so the evaluation board can easily interface to the user development system.

The EVAL-ADPD1081Z-PPG is powered through the ribbon cable from the EVAL-ADPDUCZ microcontroller board (obtained separately). The evaluation board provides three green light emitting diodes (LEDs) and a 7 mm2 photodiode (PD). The design of the evaluation board is optimized for wrist-based photoplethysmography (PPG) measurements.

For additional information on the functionality of the ADPD1080/ ADPD1081, refer to the ADPD1080/ADPD1081 data sheet.
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EVAL-ADPD1080Z-PRX

ADPD1080 Evaluation Board, optimized for motion detection and long range proximity/presence detection applications

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EVAL-ADPD1080Z-PRX

ADPD1080 Evaluation Board, optimized for motion detection and long range proximity/presence detection applications

ADPD1080 Evaluation Board, optimized for motion detection and long range proximity/presence detection applications

Features and Benefits

  • Full configuration of the ADPD1080
    • Register level
    • Parameter level
  • Graph views
    • Time series view
    • Long range proximity view
  • UDP transfer capability

Product Detail

The EVAL-ADPD1080Z-PRX evaluation kit provides users with a simple means of connecting with the ADPD1080 hardware, collecting data from the ADPD1080, and evaluating long range proximity capabilities. The ADPD1080 hardware is configured with a large area, p-type, intrinsic, n-type (PIN) semiconductor photodiode as a proximity sensor. In this configuration, motion and proximity in front of the EVAL-ADPD1080Z-PRX are measured by detecting the amount of infrared (IR) light reflected off of objects and the change in IR light as objects move relative to the EVAL-ADPD1080Z-PRX.

The evaluation kit requires the EVAL-ADPDM3Z and the Applications Wavetool, which can be downloaded from the EVAL-ADPD1080Z-PRX product page. The Applications Wavetool is a graphical user interface (GUI) that provides users with low level and high level configurability, real-time data analysis, and user datagram protocol (UDP) transfer capabilities so that the evaluation board can easily connect to a PC.

The USB port of the PC powers the EVAL-ADPDM3Z and the EVAL-ADPD1080Z-PRX. On-board voltage regulators provide voltage supplies for the ADPD1080.

The evaluation board schematic indicates signal names for easy identification.

Full specifications for the ADPD1080 are available in the ADPD1080 data sheet. Refer to both this data sheet and the EVAL-ADPD1080Z-PRX user guide when working with the evaluation board.

Reference Designs

Reference Designs 1

Figure 1. CN0569 Simplified Block Diagram

Infrared Gesture Recognition Module

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CN0569

Infrared Gesture Recognition Module

CN0569

Circuits from the lab

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Infrared Gesture Recognition Module

Features and Benefits

  • Highly Integrated Optical Front End
  • Dual Light Sensors for Intensity and Directionality Measurements
  • Open Source Gesture Detection Algorithm
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Design & Integration Tools

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Videos

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Jul 08, 2022

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Infrared Gesture Recognition Module for HMI Applications

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