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



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.

MAX86170B: Simplified Block Diagram MAX86170B: Simplified Block Diagram 放大+


  • 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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  • 光学心率检测
  • 心率变异
  • 血氧饱和度 (SpO2)
  • 身体含水量
  • 肌肉和组织氧饱和度( (SmO2 and StO2)
  • 最大耗氧量 (VO2 max)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX86171EVSYS:  MAX86171/MAX86170B评估套件
申请可靠性报告: MAX86170B 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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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Complete Optical Biosensing Module with Ultra-Low-Power Biometric Sensor Hub

  • Complete Biometric Sensor Hub
  • World-Class Algorithm for Wearable Applications

±0.25°C Accurate I2C Temperature Sensor

  • High Accuracy
  • Long Battery Life
  • Small Size

1-Wire® Temperature Sensor with ±1ºC Accuracy

  • 1-Wire Interface Requires Only One Port Pin for Communication
  • Unique 64-bit Serial Code Stored in an On-Board ROM
  • External Resistor Selects Address for Location Identification


  • 微小、3.5mm x 7.0mm x 1.5mm、14引脚光模块
  • 光学级玻璃,实现长期最佳、稳定性能
  • 使移动设备以超低功耗工作

类型 编号 标题
评估板10490MAX86171EVSYS MAX86171/MAX86170B评估套件