ADPD188BI Series

Integrated Optical Module with Ambient Light Rejection and Two LEDs

Catalog

Integrated Optical Module with Ambient Light Rejection and Two LEDs

Part	Supplied Contents	Voltage - Supply [Max]	Voltage - Supply [Min]	Sensor Type	Utilized IC / Part	Interface	Mounting Type	Wavelength	Output Type	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Type
Analog Devices EVAL-CN0537-ARDZ	Board(s)	5 V	3.3 V	Smoke	ADPD188BI
Analog Devices EVAL-ADPD188GGZ	Board(s)			Ambient Light	ADPD188GG	I2C Serial SPI
Analog Devices ADPD188BI-ACEZR7		1.9 V	1.7 V				Surface Mount	470 nm 850 nm	I2C SPI	24-VFLGA Exposed Pad	85 °C	-40 °C	Ambient
Analog Devices ADPD188BI-ACEZRL		1.9 V	1.7 V				Surface Mount	470 nm 850 nm	I2C SPI	24-VFLGA Exposed Pad	85 °C	-40 °C	Ambient
Analog Devices EVAL-CN0537-ALGO					ADPD188BI								License
Analog Devices EVAL-ADPD188BIZ-S2	Board(s)			Smoke	ADPD188BI
Analog Devices ADPD188GG-ACEZRL		1.9 V	1.7 V				Surface Mount	525 nm	I2C SPI	24-VFLGA Exposed Pad	85 °C	-40 °C	Ambient

Catalog

Integrated Optical Module with Ambient Light Rejection and Two LEDs

Key Features

• Supports UL-217 edition 8/ UL-568 ed. 7; EN-54; GB..; ISO

• Lowers Nuisance Alarms using a Dual Wavelength detection with higher SNR and dynamic range.

• 3X Lower power dissipation enables smaller/ cheaper batteries

• Integrated Optical Module (3.8mm x 5mm x 0.9mm with 1 blue LED, 1 IR LED and 2 Photo diodes)simplifies EMC design,allows for greater diversity of industrial design options andresults in 75% fewer discrete components.

• simplifies EMC design,

• allows for greater diversity of industrial design options and

• results in 75% fewer discrete components.

• Loop calibration at final test reduces calibration challenges with smoke detector products.

• Supported by ADI designed smoke chamber manufactured by Accumold, 28800X. (Please seeEVAL-CHAMBER Mechanical Dimensions (PDF), also under Resources below)

Description

The ADPD188GG is a complete photometric system designed to measure optical signals from ambient light and from synchronous reflected light emitting diode (LED) pulses. Synchronous measurement offers best-in-class rejection of ambient light interference, both dc and ac. The module integrates a highly efficient photometric front end, two LEDs, and two photodiode (PD). All of these items are housed in a custom package that prevents light from going directly from the LED to the photodiode without first entering the subject.The front end of the application specific integrated circuit (ASIC) consists of a control block, a 14-bit analog-to-digital converter (ADC) with a 20-bit burst accumulator, and three flexible, independently configurable LED drivers. 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. The data output and functional configuration occur over a 1.8 V I2C interface or a serial peripheral interface (SPI) port.ApplicationsOptical heart rate monitoringReflective PPG measurementCNIBP measurement