Always-on Low-power Gas Sensing with 10+ Year Coin Cell Battery Life Reference Design
Description
This reference design uses nano-power operational amplifiers: comparators: system timers: temperature sensors and the SimpleLink™ ultra-low power 2.4-GHz wireless microcontroller (MCU) platform to demonstrate an ultra-low power carbon-monoxide detector implementation. These technologies lead to an extremely long battery life of over 10 years with a standard CR2032 lithium-ion coin-cell battery: which could be used for applications including gas detection or air quality monitoring. The carbon monoxide detector has sensitivity up to 1000 ppm with a standby current of 1.07 µA. The design guide includes techniques for system design: detailed test results and information to get the design up and running quickly.
Features
- Use of nano-power analog ultra-low-power design resulting in 10-year battery life from a single CR2032 coin cellCarbon monoxide gas sensor and analog logic always powered on to enable continuous monitoring and fast response timesBluetooth® Low Energy (BLE) wireless connectivity reduces installation costs and allows multiple sensors to communicate with a single hostSelf-check and end-of-life monitoring recognizes malfunctioning gas sensor and reports status every five minutes (configurable)Carbon-monoxide gas detection range of 0 to 1000 ppm with ±15% accuracy
Applications
- Smoke & heat detector
- Wireless environmental sensor
- Process analytics
- Gas detector
- Fitness machine
- Fire safety sounder
- speaker
- strobe
- Lighting sensor
- Electric toothbrush
- Clinical digital thermometer
- Digital stethoscope
Product Categories
- Amplifiers