ADPD7008

RECOMMENDED FOR NEW DESIGNS

Multimodal Sensor Front End

Data Sheet (Rev. 0) Product Selection Table

Part Models: 1
1ku List Price: price unavailable

Viewing:

Overview

Optical channel
- 4 input channels with multiple operation modes for various sensor measurements
- 4-channel processing with simultaneous sampling
- 12 programmable time slots for synchronized sensor measurements
- Flexible input multiplexing to support single-ended sensor measurements
- 8 LED drivers, 2 of which can be driven simultaneously
- Flexible sampling rate from 0.004 Hz to 9 kHz using internal oscillators

AC ambient light rejection: 78 dB up to 100 Hz
400 mA total LED peak drive current
Individual ambient cancellation DAC at TIA input with 9-bit control up to 300 μA
Individual LED DC cancellation DAC at TIA input with 7-bit control up to 190 μA

SPI communications supported

704-byte FIFO

The ADPD7008 is a highly integrated analog front end (AFE) designed for measuring various vital signals.

The optical channel is designed as an optical transceiver, stimulating up to eight light emitting diodes (LEDs) and measuring the return signal on up to four separate current inputs. The signal chain rejects signal offsets and corruption from asynchronous modulated interference, typically from ambient light, eliminating the need for optical filters or externally controlled DC cancellation circuitry.

The data output and functional configuration use a serial port interface (SPI) on the ADPD7008. The control circuitry includes flexible LED signaling and synchronous detection, digital filters, digital wave generators, and configurable filters.

The ADPD7008 is available in a 2.795 mm × 2.560 mm, 0.40 mm pitch, 36-ball WLCSP.

APPLICATIONS

Wearable health and fitness monitors: heart rate, heart rate variability, and saturation level of pulse oxygen
Clinical patient monitors: small bed side patient, home portable patient, and small remote patient
Industrial monitoring: particle, aerosol, and gas detection

Part Models: 1
1ku List Price: price unavailable

Documentation

Data Sheet 1

ADPD7008: Multimodal Sensor Front End (Rev.0) 04/17/2024

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
ADPD7008BCBZR7	36-ball WLCSP (2.795 mm x 2.560 mm x 0.595 mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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

Evaluation Kits

Evaluating the ADPD7000 Multimodal Sensor Front End

Buy Now View Details

Features and Benefits

Board supports ADPD7000 population
6 separately driven LEDs are included: 3 green LEDs around the center and 3 packaged LEDs, each of which includes 1 infrared LED and 1 red LED
4 channels of photodiode input: two channels with a single PD and two channels with a double PD
Works with the VSM Client evaluation software allowing the following:
- Time domain graphing and logging
- Selection of supported functions, including PPG, BIA, EDA, and ECG
- Real-time data display with various combinations of the supported functions

Product Details

The user guide describes the operation of the EVAL-ADPD7000Z demonstration kit, which is an evaluation module for the ADPD7000.

The ADPD7000 is a fully Integrated analog front end (AFE) for wearable vital signal monitoring (VSM) devices. The key functions of the ADPD7000 include photoplethysmography (PPG), electrocardiogram (ECG), body impedance analysis (BIA), and electrodermal activity (EDA).

This demonstration kit includes both software and hardware. The EVAL-ADPD7000Z can evaluate the AFE feature and verify the system design based on the AFE. According to the requirements of the application, the user can use a cable connection or Bluetooth connection to establish communication between the PC and the EVAL-ADPD7000Z demonstration kit.

The user guide also describes an example configuration of the different functions of the ADPD7000.

For full details on the ADPD7000, see the ADPD7000 data sheet, which must be consulted in conjunction with the user guide when using the EVAL-ADPD7000Z.