High-Integration Pulse Oximeter Turnkey Solution
This turnkey solution provides a precision MCU platform for non-invasive measurements of blood oxygen saturation (SpO₂) and pulse rate, making it ideal for compact fingertip oximeters and wearable health monitors used in respiratory care and wellness tracking.
Solution Overview
High-Performance Pulse Oximeter SoC Solution Powered by the Holtek BH66F2560, our solution delivers a fully integrated platform for non-invasive SpO₂ and heart rate monitoring. It features a high-precision 12-bit ADC and a built-in SpO2 receiving AFE that requires no external components, significantly reducing BOM cost. Key advantages include calibration-free production and medical-grade accuracy (SpO₂ ±2%). The integrated constant current H-bridge LED driver supports 4-level dynamic adjustment, ensuring reliable measurement across various perfusion levels and skin types.
Application Areas
- Fingertip pulse oximeters
- Wearable SpO2 monitors
- Clinical patient monitors
- Sleep apnea monitoring devices
Application Block Diagram
Integrated AFE
12-bit ADC & OPAMPs Built-in 12-bit ADC and DACs ensure precise signal capture without external components.
Smart LED Driver
Direct LED Drive Integrated 0~75mA H-Bridge powers LEDs directly, eliminating the need for external transistors.
Calibration-Free
Production Ready Advanced design requires no factory calibration for fixed-wavelength sensors, speeding up mass production.
Core Features & Benefits
High-Accuracy SpO₂ Measurement
Precision 12-bit ADC & Wide Range Features a high-speed 12-bit ADC delivering ±2% SpO₂ accuracy across a wide measurement range of 35%~100%. Meets ISO 80601-2-61 standards for clinical precision.
Ultra-Low Power Design
Efficient Power Management Sleep current <1.0μA with optimized measurement power consumption. Supports 2×1.5V (AAA) batteries for extended operation, making it ideal for portable fingertip devices.
Integrated AFE & LED Drivers
Highly Integrated System Built-in SpO₂ receiving AFE requires no external components, significantly reducing BOM cost. Includes a constant current H-bridge driver with 4 selectable current levels for adaptive LED control.
Advanced Signal Processing
Calibration-Free Technology Advanced algorithms ensure no calibration is required for fixed-wavelength sensors. Capable of handling low perfusion (PI 0%~20%) and reducing sunlight/50Hz/60Hz interference.
Medical-Grade Performance
Reliable & Production-Ready Proven performance tested with Fluke Index2 Simulators, ensuring consistent accuracy for SpO₂, Pulse Rate, and Perfusion Index under various physiological conditions.
Display & Connectivity
Flexible Interface Support Built-in LCD driver (1/2 bias, 1/4 duty) and supports SPI/I²C/UART interfaces for connecting external OLED/TFT modules or Bluetooth for smart data tracking.
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📊 Key Specifications
✨ Features
- Fully Integrated SpO₂ AFE
- Smart H-Bridge LED Driver
- Medical-Grade Precision
- Calibration-Free Mass Production
- Ultra-Low Power Consumption
- Flexible Interface
Development Support & Resources
Comprehensive development resources to accelerate your time-to-market
Reference Design
Complete pulse oximeter reference design with schematics and PCB.
SDK & Drivers
AFE drivers, LED control, and SpO₂ calculation sample code.
Algorithm Library
SpO₂ calculation, motion artifact rejection, and perfusion index algorithms.
Development Tools
Programmer/debugger and configuration tools.
Technical Documentation
Datasheets, application notes, and design guidelines.
Training & Webinars
Pulse oximeter design training and technical 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 accuracy standards?
Yes. The solution delivers medical-grade accuracy with SpO2 ±2% (range 35%~100%) and Pulse Rate ±2 bpm. Every unit is verified using Fluke Index2 Simulators to ensure consistency and reliability in clinical settings .
Is factory calibration required?
No. Advanced algorithms ensure that no calibration is required as long as the sensor wavelengths are fixed. This unique feature significantly simplifies mass production and reduces manufacturing costs.
How does the solution handle interference?
Our algorithm library includes advanced rejection capabilities for sunlight, 50Hz, and 60Hz interference. It also maintains high accuracy even in low perfusion conditions (PI down to 0.3%).
What is the power consumption?
The solution is optimized for ultra-low power consumption, supporting long-term operation with just 2× 1.5V (AAA) batteries.
Is smartphone connectivity supported?
Yes. The MCU features UART/SPI interfaces to easily connect with external Bluetooth modules, enabling real-time data synchronization to smartphones for trend analysis and cloud storage.