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Analog Devices / Maxim Integrated MAX30005 Optical PPG and Single-Lead ECG AFE

Analog Devices MAX30005 Optical PPG and Single-Lead ECG AFE is a complete photoplethysmogram (PPG) and electrocardiogram (ECG) analog front-end (AFE) solution for wearable applications. The MAX30005 is a complete AFE solution for ECG only. Both AFEs offer high performance for fitness and clinical applications with ultra-low power for long battery life. The Analog Devices MAX30005 features an ECG channel, EMI filtering, internal lead biasing, AC and DC lead-off detection, right-leg drive, ultra-low power DC lead-on detection during standby mode, and extensive calibration voltages for built-in self-test.

Features

  • Complete dual-channel optical-data acquisition system
  • Ultra-low-power operation for wearable devices
  • Optical readout channel < 11μA (typ) at 25fps
  • 14.6μs to 117.1μs ADC integration time
  • Low shutdown current < 1μA (typ)
  • Signal to Noise Ratio (SNR) up to 110dB with average (Avg) mode and off-chip filtering
  • Supports frame rates from 1fps to 2kfps
  • High-resolution 20-bit charge-integrating ADCs
  • Low dark-current noise of < 50pARMS
  • Excellent ambient range and rejection capability> 100μA ambient photodiode current
  • > 90dB ambient rejection at 120Hz (Avg > 2)
  • ECG (MAX86176/MAX30005)
  • Clinical-grade ECG AFE with high-resolution ADC15.6 ENOB with 0.6μVRMS noise over 0.05Hz to 40Hz
  • Very low input-bias current (-40°C to +85°C)233fARMS input-current noise (0.05Hz to 40Hz, TA = +25°C)
  • Fully differential input structure with CMRR > 110dB at power-line frequencies
  • High-input impedance > 1GΩ for extremely low common to differential-mode conversion
  • High DC-offset range of ±1300mV (typ 1.8V) allows a wide variety of electrodes to be used
  • High AC-dynamic range of > 90mVP-P helps prevent saturation in the presence of motion
  • ECG Biopotential channel can be used for some EEG applications
  • Higher-gain ranges available (480V/V, 960V/V)
  • Low input-referred voltage and current noise enables use of small-area dry electrodes

Evaluation Kit

Analog Devices / Maxim Integrated MAX30005 Evaluation Kit

Evaluates the MAX30005 electrocardiogram (ECG) measurement capabilities.

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發佈日期: 2022-02-21 | 更新日期: 2023-04-17