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TIDA-00378

PM2.5 and PM10 Particle Sensor Analog Front-End for Air Quality Monitoring Reference Design

Design files

TIDA-00378

Design files

Overview

TIDA-00378 provides an analog front-end for measuring PM2.5 and PM10 particle matter. The reference design detects light scattered by particles suspended in air. A sample software algorithm is provided to convert the analog output of the design into a particle size and concentration measurement. Test result data for cigarette smoke, Arizona dust and mulberry pollen is provided along with all software and hardware design files.

Features
  • Analog front-end design for PM2.5 (<2.5 µm) and PM10 (<10 µm) particle detection and count
  • Dust measurement range from 340 x 103 to 991 x 103 pcs/ft3 (12 to 35 pcs/cm3) at 75% accuracy
  • Zero-volt bias to minimize photodetector noise and stabilize performance over temperature
  • Instrumentation amplifier topology to reject external noise sources
  • Low noise, low-input bias current and low offset op-amps with rail-to-rail output to maintain high SNR and increase output dynamic range
  • Tested against Arizona dust, mulberry pollen and cigarette smoke using adapted ANSI/AHAM AC-1-2013 test standard
  • Full algorithm source code for PM2.5 and PM10 calculation for customization and porting
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-00378
TIDUB65C.PDF (1584 K)

Reference design overview and verified performance test data

download Schematic — TIDA-00378
TIDRJ21A.PDF (565 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-00378
TIDRJ22A.PDF (119 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Assembly drawing — TIDA-00378
TIDRJ23.PDF (132 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDA-00378
TIDRJ25A.ZIP (1420 K)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-00378
TIDCBH7.ZIP (467 K)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-00378
TIDRJ24.PDF (847 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Difference amplifiers

INA132 — Low Power, Single-Supply Difference Amplifier

Data sheet: PDF
Precision op amps (Vos<1mV)

OPA2320 — Dual, precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

OPA320 — Precision, zero-crossover, 20-MHz, 0.9-pA Ib, RRIO, CMOS operational amplifier

Data sheet: PDF | HTML

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Software

Technical documentation

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Type Title Date
* Design guide PM2.5/PM10 Particle Sensor Analog Front-End for Air Quality Monitoring Design (Rev. C) May 11, 2016
Technical article Air quality monitors and smoke detectors put on a new face Aug. 04, 2016
Technical article Trends in building automation: connected sensors in safety and security Jul. 20, 2016

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