MAX86141 Description
The MAX86140/MAX86141 are ultra-low-power, pletely integrated, optical data acquisition systems. On the transmitter side, the MAX86140/MAX86141 have three programmable high-current LED drivers that can be configured to drive up to six LEDs using an external 3x2:1 mux. With two MAX86140/MAX86141 devices working in master-slave mode, the LED drivers can drive up to twelve LEDs using an external 3x2:1 mux.
MAX86141 Key Features
- plete Single and Dual-Channel Optical Data Acquisition System
- Optimized Architecture for Transmissive and Reflective Heart Rate or SpO2 Monitoring
- Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance)
- Lower Effective Dark Current Noise Achievable Through Multiple Sample Modes and On-Chip Averaging
- High-Resolution, 19-Bit Charge Integrating ADC
- Three Low-Noise, 8-Bit LED Current DACs
- Excellent Dynamic Range > 89dB in White Card
- Dynamic Range Extendable to > 104dB for SpO2
- Excellent Ambient Range and Rejection Capability
- > 100μA Ambient Photodetector Current
MAX86141 Applications
- Wearable Devices for Fitness, Wellness and Medical Applications
- Optimized for Wrist, Finger, Ear, and Other Locations
- Optimized Performance to Detect