Infrared Thermometer SoC Solution
Non-contact body temperature measurement with integrated IR sensor interface, LCD driver, and ultra-fast measurement for medical and industrial applications
Solution Overview
Infrared thermometers provide fast, non-contact body temperature measurement, essential for fever screening and infection control. Our solution integrates high-precision IR sensor interface, ambient temperature compensation, and advanced emissivity correction algorithms, enabling accurate forehead/ear temperature measurement in less than 1 second. The ultra-low power design and high integration make it ideal for portable, battery-powered IR thermometers.
Application Areas
- Forehead infrared thermometers
- Ear infrared thermometers
- Fever screening devices
- Industrial temperature measurement
Application Block Diagram
High Precision
24-bit Σ-Δ ADC with 1μV resolution, ENOB > 20 bits
Ultra-Low Power
Sleep current I_sleep < 1.5μA, extends battery life
High Integration
Built-in LCD driver, VREF, temp sensor - simplifies design
Core Features & Benefits
High-Precision Non-Contact Measurement
24-bit ADC with integrated IR sensor interface enables ±0.2°C accuracy for forehead measuremen
Ultra-Low Power Design
Sleep current <1.5μA, measurement current ~5mA. Supports 2×AAA batteries for 3000+ measurements, ideal for portable IR thermometers.
High Integration SoC
Built-in IR sensor interface, ambient temperature sensor, LCD driver, and backlight driver reduce external components by 25%.
Ultra-Fast Measurement
Non-contact measurement completes in <1 second with instant temperature display, ideal for fever screening and pediatric use.
Advanced Algorithms
Ambient temperature compensation, emissivity correction, and body surface temperature conversion algorithms ensure accurate readings.
Medical-Grade Reliability
Excellent ESD/EMI performance and distance detection for proper measurement positioning and medical device certification support.
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- 24-bit Delta Sigma A/D converter
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Development Support & Resources
Comprehensive development resources to accelerate your time-to-market
Reference Design
Complete infrared thermometer reference design with schematics and PCB
SDK & Drivers
IR sensor drivers, temperature calculation, and sample code
Algorithm Library
Temperature conversion, ambient compensation, and emissivity correction algorithms
Development Tools
Programmer/debugger and configuration tools
Technical Documentation
Datasheets, application notes, and IR thermometer design guidelines
Training & Webinars
Infrared thermometer design training and webinars
Need More Technical Support?
Our technical team is ready to provide professional consultation and customized solutions
Frequently Asked Questions
Does the solution meet medical device standards?
Yes, our MCU is designed to support ASTM E1965 and ISO 80601-2-56 standards for infrared thermometers, with ±0.2°C accuracy for forehead measurement.
What is the typical measurement distance?
Typical measurement distance is 3-5cm for forehead thermometers. Our solution includes distance detection to ensure proper positioning for accurate readings.
How is ambient temperature compensation implemented?
Our MCU includes an integrated ambient temperature sensor. The algorithm library provides compensation formulas to correct IR sensor readings based on ambient temperature.
Can the thermometer measure both forehead and ear temperature?
Yes, with appropriate IR sensor selection and algorithm calibration, our solution can support both forehead and ear measurement modes with mode switching.
How many temperature readings can be stored?
Our high-end MCU (BH66F2662) supports memory recall for the last 32 readings. The mid-range MCU (BH66F2652) supports the last 10 readings.
What battery life can be achieved?
With ultra-low sleep current (<1.5μA) and optimized power management, 2×AAA batteries can support 3000+ measurements, or approximately 2-3 years of typical use.
