EVAL-CN0357-ARDZ, Arduino Compatible Electrochemical Gas Detection Circuit (CN0357)
Reference Design using part ADA4528-2ARMZ by Analog Devices
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For End Products
- Gas & Water Detection
Description
- EVAL-CN0357-ARDZ, Arduino Compatible Electrochemical Gas Detection Circuit CN0357, is a single-supply, low noise, portable gas detector using an electrochemical sensor. The Alpha sense CO-AX carbon monoxide sensor is used in this circuit. Electrochemical sensors offer several advantages for instruments that detect or measure the concentration of many toxic gases. This circuit uses the ADA4528-2, dual auto zero amplifier. The AD5270-20 programmable rheostat is used rather than a fixed transimpedance resistor, allowing for rapid prototyping of different gas sensor systems, without changing the bill of materials. For applications where measuring fractions of ppm gas concentration is important, using the ADA4528-2 and the ADR3412 makes the circuit performance suitable for interfacing with a 16-bit ADC, such as the AD7790
Key Features
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Signal Conditioning TypeAmplification
Featured Parts (9)
| Part Number | Manufacturer | Type | Description | |||
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ADR3412ARJZ-R7 | Analog Devices | Voltage References | V-Ref Precision 1.2V 10mA 6-Pin SOT-23 T/R | Buy | |
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AD8500AKSZ-REEL7 | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Single Micropower Amplifier R-R I/O ±2.75V/5.5V 5-Pin SC-70 T/R | Buy | |
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ADR3412ARJZ-R2 | Analog Devices | Voltage References | V-Ref Precision 1.2V 10mA 6-Pin SOT-23 T/R | Buy | |
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ADP7102ARDZ-3.3-R7 | Analog Devices | Linear Regulators | LDO Regulator Pos 3.3V 0.3A 8-Pin SOIC N EP T/R | Buy | |
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AD5270BRMZ-20 | Analog Devices | Digital Potentiometers | Digital Potentiometer 20kOhm 1024POS Non-Volatile Linear 10-Pin MSOP Tube | Buy | |
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AD7790BRMZ | Analog Devices | Analog to Digital Converters - ADCs | 1-Channel Single ADC Delta-Sigma 120sps 16-bit Serial 10-Pin MSOP Tube | Buy | |
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AD5270BRMZ-20-RL7 | Analog Devices | Digital Potentiometers | Digital Potentiometer 20kOhm 1024POS Non-Volatile Linear 10-Pin MSOP T/R | Buy | |
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TXB0108PWR | Texas Instruments | Level Translators | Voltage Level Translator 8-CH Bidirectional 20-Pin TSSOP T/R | Buy | |
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ADA4528-2ARMZ | Analog Devices | Operational Amplifiers - Op Amps | Op Amp Dual Auto Zero/Chopper R-R I/O ±2.75V/5.5V 8-Pin MSOP Tube | Buy | |