Analog DevicesVolatile Gas Detection | EVAL-CN0395-ARDZPlacas y kits de desarrollo de administración de potencia

Reference Design: Volatile Organic Compound Detector for Indoor Air Quality Measurement

The EVAL-CN0395-ADRZ uses metal-oxide sensor to detect gases composed of volatile organic compounds, making this Shield great for measuring indoor air quality. The sensor is composed of a heating resistor and a sensing resistor, where when the sense resistor is heated, its value changes as a function of the concentration of different gases. It also includes a temperature and humidity sensor that can be used for compensating the gas concentration value.

Block Diagram:  

Features:

• Complete Volatile Organic Compound (VOC) detector

• Constant voltage, current, resistance, temperature, heater control options

• Wide range sense resistor measurement

• On board temperature and humidity sensor

Applications:

• Healthcare

  • Life sciences & medical instrumentation

• Building Technology

  • Heating ventilation and air conditioning

Functional Setup:

The following equipment is needed:

• PC with a USB port and Windows® 7 (64-bit), Windows 8 (64-bit), or Windows 10 (64-bit)

• EVAL-CN0395-ARDZ circuit evaluation board

• EVAL-ADICUP360 evaluation board or equivalent Arduino interface

• USB A to USB micro cable

• EVAL-ADICUP360 software (IDE)

• EVAL-CN0395-ARDZ sample code

Related ADI parts:

• AD7988-1: 16-Bit, 100ksps, Ultra Low Power 16-Bit SAR ADC

• ADN8810: 12-Bit High Output Current Source

• AD8628: Zero-Drift, Single-Supply, RRIO Op Amp 

• ADG884: 0.5 Ω CMOS Dual 2:1 MUX/SPDT Audio Switch

• ADG758: CMOS Low Voltage, 3 Ω 8-Channel Multiplexer

• ADP196: 5 V, 3 A Logic Controlled High-Side Power Switch

• ADP124: 5.5V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulator with 31 Fixed-output Voltages

• ADR4540: Ultra-Low-Noise, High-Accuracy 4.096V Voltage Reference

Compatible Boards:

• EVAL-ADICUP360: ADUCM360 Microcontroller Evaluation Board Flash

• List of Intel boards with the Arduino connector

Reference Documentation:

List of ADI Arduino Shields