MAX86165

RECOMMENDED FOR NEW DESIGNS

Miniature Optical Heart Rate Module

Data Sheet (Rev. 0) Product Selection Table
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Part Details

  • Complete Single-Channel Optical Data AcquisitionSystem in a Tiny Module
  • Optimized Architecture for Reflective Heart RateMonitoring
  • Integrated Infrared Proximity Sensing
  • Optimized Performance to Detect ContinuousMonitoring for Heart Rate Variability (HRV)
  • High-Resolution 20-bit Charge Integrating ADC
  • Low-Noise 8-Bit LED Current DAC
  • Excellent Signal to Noise Ratio (SNR) up to 94.5dB inWhite Card Loop-Back Test
  • Excellent Ambient Range and Rejection
    • Up to 200μA Ambient DC Current
    • 80dB Ambient Rejection at 120Hz
  • Ultra Low-Power Operation for Wearable Devices
  • Miniature 2mm x 2.5mm x 0.82mm 10-pin OLGAPackage
MAX86165
Miniature Optical Heart Rate Module
MAX86165 Simplified Block Diagram
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Documentation

Data Sheet 1

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Evaluation Kits

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MAX86165EVKIT

Evaluation Kit for MAX86165

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Features and Benefits

  • Quick Evaluation of the MAX86165
  • Supports Optimization of Configurations
  • Facilitates Understanding MAX86165 Architecture and Solution Strategy
  • Real-time Monitoring
  • Data Logging Capabilities
  • On-Board Accelerometer
  • Bluetooth® LE
  • Windows® 10-Compatible GUI Software

Product Details

The MAX86165 evaluation kit (EV kit) provides a quick evaluation of the MAX86165 optical AFE data-acquisition system. The MAX86165 AFE is a completely integrated optical module which contains a programmable LED driver with an IR emitter and a high efficiency PIN photodiode making it ideal for proximity sensing and heart rate detection in small space such as ear buds. The MAX86165 AFE’s readout channel provides a low-noise signal conditioning AFE, including a 20-bit ADC and an industry-leading ambient light cancellation (ALC) circuit which results in a 94.5 dB SNR in a white card loop-back test.

The MAX86165 supports I2C compatible interfaces. The MAX86165 EV kit allows flexible configurations to optimize measurement signal quality at minimal power consumption. The EV kit supports file and flash logging, which allows the user to disconnect from the computer for more convenient data capturing sessions, such as overnight or outdoor running.

The MAX86165 EV kit consists of two boards. The MAXSENSORBLE_EVKIT_B is the data acquisition board while the MAX86165_OSBFLEX_EVKIT_B is the sensor daughter board for the MAX86165. The EV kit is powered by a Li-Po battery, which is recharged through a USB-C cable. The EV kit streams data using Bluetooth® through Windows® BLE or a Cypress USB Bluetooth® LE dongle CY5677. The EV kit contains the latest firmware but comes with the programming circuit board MAXDAPTYPE- C in case a firmware upgrade is needed.
MAX86165EVKIT
Evaluation Kit for MAX86165
MAX86165EVKIT Board Photo Angle View MAX86165EVKIT Board Photo Top View MAX86165EVKIT Board Photo Bottom View

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