MAX86171

Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE for Wearable Health

Best-in-Class SNR for Addressing Low Perfusion & New Use Cases


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说明

The MAX86171 is an ultra-low-power optical data acquisition system with both transmit and receive channels. On the transmitter side, the MAX86171 has nine LED driver output pins, programmable from three high-current, 8-bit LED drivers. On the receiver side, MAX86171 has two low-noise charge integrating front-ends that each include independent 19.5 bit ADCs and best-in-class ambient light cancellation (ALC) circuits, 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 MAX86171 is ideal for a wide variety of optical sensing applications such as pulse oximetry and heart rate detection.

The MAX86171 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 MAX86171 is available in a compact 28-bump WLP package.

关键特性

  • Complete Dual-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 19.5-Bit Charge Integrating ADCs
  • Supports Four PD Inputs for Multi-Parameter Measurements
  • Supports Nine 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 (Average Mode > 2)
  • Miniature 2.78mm x 1.71mm, 7 x 4 0.35mm Ball Pitch WLP Package
  • -40°C to +85°C Operating Temperature Range

应用

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Part NumberApplicationsISUPPLY
(µA)
Shutdown Mode Supply Current
(µA)
VSUPPLY
(V)
VSUPPLY
(V)
Resolution
(bits)
SNR
(dB)
Oper. Temp.
(°C)
Package/Pins
typtypminmaxADC
MAX86171 NEW!
At-home Monitoring
Finger-based
Wearable Devices
Wearable Patient Monitors
Wrist-worn
110.61.7219109-40 to +85
THIN WLP/28
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Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX86171EVSYS: Evaluation System for the MAX86171

质量和环境数据

申请可靠性报告: MAX86171 
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型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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相关资料


MAX86171
Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE for Wearable Health

  • Complete Dual-Channel Optical Data Acquisition System
  • Ultra Low-Power Operation for Wearable Devices
  • Excellent Top-End Dynamic Range > 91dB in White Card Loop-Back Test (Nyquist Sample-to-Sample Variance)