MAX86170B Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE for Wearable Health
■The MAX86170B is an ultra-low-power optical data acquisition system with both transmit and receive channels. On the transmitter side, the MAX86170B has four LED driver output pins, programmable from three high-current, 8-bit LED drivers. On the receiver side, MAX86170B has a low-noise charge integrating front-end that includes a 20-bit ADC and best-in-class ambient light cancellation (ALC) circuit, producing the highest performing integrated optical data acquisition system on the market today.
■Due to its low power consumption, compact size, ease- and flexibility-of-use, the MAX86170B is ideal for a wide variety of optical sensing applications such as pulse oximetry and heart rate detection.
■The MAX86170B operates on a 1.8V main supply voltage and a 3.1V to 5.5V LED driver supply voltage. The device supports both I2C- and SPI-compatible interfaces in a fully autonomous way. The device has a large 256-word built-in FIFO. The MAX86170B is available in a compact WLP package 2.78 x 1.71mm with 6 x 4, 0.4mm ball pitch.
●Benefits and Features:
■Complete Single-Channel Optical Data Acquisition System
■Ultra Low-Power Operation for Wearable Devices
▲Low-Power Operation, Optical Readout Channel < 11μA at 25fps
▲Exposure Integration Period Ranging from 14.6μs to 117.1μs
▲Low Shutdown Current < 1μA
■Excellent Top-End Dynamic Range > 91dB in White Card Loop-Back Test (Nyquist Sample-to-Sample Variance)
■Extended Dynamic Range up to 110dB (Averaging and Off-Chip Filtering)
■Supports Frame Rates from 1fps to 2.9kfps
■High Resolution 20-Bit Charge Integrating ADC
■Supports Two PD Inputs for Multiparameter Measurements
■Supports Four LED Driver Output Pins Generated from Three 8-Bit LED Current Drivers
■Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance in 117.1μs Integration Time)
■Excellent Ambient Range and Rejection Capability
▲> 100μA Ambient Photodetector Current
▲> 70dB Ambient Rejection at 120Hz
■Miniature 2.78mm x 1.71mm 6 x 4, 0.4mm Ball Pitch WLP Package
■-40°C to +85°C Operating Temperature Range
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Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE 、 ultra-low-power optical data acquisition system |
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[ Wearable Health ][ wide variety of optical sensing applications ][ pulse oximetry ][ heart rate detection ][ Wearable Devices for Fitness Applications ][ Wearable Devices for Wellness Applications ][ Wearable Devices for Medical Applications ][ Wrist ][ Finger ][ Ear ] |
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Datasheet |
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Please see the document for details |
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WLP |
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English Chinese Chinese and English Japanese |
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1/20 |
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Rev 0 |
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19-100721 |
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1.2 MB |
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