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ANALOG DEVICES ADPD188BI-ACEZR7

Ambient Light Photo Sensor, 850 nm, 1.7 to 1.9 V, I2C Digital/SPI, -40°C to 85°C, LGA-CAV-24

ANALOG DEVICES ADPD188BI-ACEZR7
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Manufacturer Part No:
ADPD188BI-ACEZR7
Order Code:
4033997RL
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Technical Datasheet:
ADPD188BI-ACEZR7   Datasheet
ECAD / MCAD
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Product Overview

ADPD188BI is a complete photometric system for smoke detection using optical dual wavelength technology. The module integrates a highly efficient photometric front end, two light emitting diodes (LEDs), and two photodiodes (PDs). These items are housed in a custom package that prevents light from going directly from the LED to the photodiode without first entering the smoke detection chamber. The front end of the application specific integrated circuit (ASIC) consists of a control block, a 14bit analogue-to-digital converter (ADC) with a 20bit burst accumulator, and three flexible, independently configurable LED drivers. The control circuitry includes flexible LED signalling and synchronous detection. The analogue front end (AFE) features best-in-class rejection of signal offset and corruption due to modulated interference commonly caused by ambient light. It is used in application like smoke detection.
  • 2 external inputs for other sensors (for example, carbon monoxide (CO) and temperature)
  • Three 370mA LED drivers
  • On-board sample to sample accumulator enabling upto 27bits per data read
  • Optimized SNR for signal limited cases, I²C or SPI communications
  • Operating voltage range is 1.7V to 1.9V
  • Peak VDD supply current is 4.5mA typ at (Single-channel, register 0x3C, bits[8:3] = 0x38)
  • Operating temperature is -40°C to +85°C
  • Package style is 24-terminal chip array small outline no lead cavity [LGA-CAV]

Product Information

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:
850nm

:
1.7V

:
1.9V

:
24Pins

:
-40°C

:
85°C

:
MSL 3 - 168 hours
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Technical Documents (1)

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