MAX30001

Ultra-Low-Power, Single-Channel Integrated Biopotential (ECG, R-to-R, and Pace Detection) and Bioimpedance (BioZ) AFE

Ultra-Low Power, Single Channel Integrated Biopotential (ECG) AFE and Bio-Impedance (BioZ) + HR Detection Algorithm


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Description

The MAX30001 is a complete, biopotential and bioimpedance (BioZ), analog front-end (AFE) solution for wearable applications. It offers high performance for clinical and fitness applications, with ultra-low power for long battery life. The MAX30001 is a single biopotential channel providing electrocardiogram (ECG) waveforms, heart rate and pacemaker edge detection, and a single bioimpedance channel capable of measuring respiration.

The biopotential and bioimpedance channels have ESD protection, EMI filtering, internal lead biasing, DC leads-off detection, ultra-low-power, leads-on detection during standby mode, and extensive calibration voltages for built-in self-test. Soft power-up sequencing ensures no large transients are injected into the electrodes. Both channels also have high input impedance, low noise, high CMRR, programmable gain, various low-pass and high-pass filter options, and a high resolution analog-to-digital converter. The biopotential channel is DC coupled, can handle large electrode voltage offsets, and has a fast recovery mode to quickly recover from overdrive conditions, such as defibrillation and electro-surgery. The bioimpedance channel includes integrated programmable current drive, works with common electrodes, and has the flexibility for 2 or 4 electrode measurements. The bioimpedance channel also has AC lead off detection.

The MAX30001 is available in a 30-bump wafer-level package (WLP), operating over the 0°C to +70°C commercial temperature range.

Design Solution: Take a Weight Off Your Chest with a Wrist-Worn ECG Monitor ›

Design Solution: Take the Stress Out of Wearable Heart Monitoring ›


How to Measure Bioimpedance (Bio-Z) with the MAX30001EVSYS


Make High-Accuracy Biopotential and BioZ Measurements with MAX30001

MAX30001: Functional Diagram MAX30001: Functional Diagram Enlarge+

Key Features

  • Can be Used in IEC 60601-2-47:2012 Compliant Systems
  • Clinical-Grade ECG AFE with High-Resolution Data Converter
    • 15.9 Bits ENOB with 3.1µVPP (typ) Noise for ECG
    • 17 Bits ENOB with 1.1µVPP Noise for BioZ
  • Better Dry Starts Due to Much Improved Real World CMRR and High Input Impedance
    • Fully Differential Input Structure with CMRR > 100dB
  • Offers Better Common-Mode to Differential Mode Conversion Due to High Input Impedance
  • High Input Impedance > 1GΩ for Extremely Low Common-to-Differential Mode
  • Minimum Signal Attenuation at the Input During Dry Start Due to High Electrode Impedance
  • High DC Offset Range of ±650mV (1.8V, typ) Allows to Be Used with Wide Variety of Electrodes
  • High AC Dynamic Range of 65mVP-P or ECG and 90mVP-P for BioZ Will Help Prevent Saturation in the Presence of Motion/Direct Electrode Hits
  • Longer Battery Life Compared to Competing Solutions
    • 85µW at 1.1V Supply Voltage for ECG
    • 158µW at 1.1V Supply Voltage for BioZ
  • Leads-On Interrupt Feature Allows to Keep the µC in Deep Sleep Mode Until Valid Lead Condition is Detected
    • Lead-On Detect Current: 0.7µA (typ)
  • Built-In Heart Rate Detection with Interrupt Feature Eliminates the Need to Run HR Algorithm on the μController
    • Robust R-R Detection in High Motion Environment at Extremely Low Power
  • Configurable Interrupts Allows the µC Wake Up Only on Every Heart Beat Reducing the Overall System Power
  • High Accuracy Allows for More Physiological Data Extractions
  • 32-Word ECG and 8-Word BioZ FIFOs Allows the MCU to Stay Powered Down for 256ms with Full Data Acquisition
  • High-Speed SPI Interface
  • Shutdown Current of 0.6µA (typ)

Applications/Uses

  • Bio Authentication and ECG-On-Demand Applications
  • Chest Band Heart Rate Monitors for Fitness Applications
  • Impedance Based Heart Rate Detection
  • Respiration and Hydration Monitors
  • Single-Lead Event Monitors for Arrhythmia Detection
  • Single-Lead Wireless Patches for In-Patient/Out-Patient Monitoring
Part NumberApplicationsISUPPLY
(µA)
Shutdown Mode Supply Current
(µA)
VSUPPLY
(V)
VSUPPLY
(V)
Resolution
(bits)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
typtypminmaxADCSee Notes
MAX30001 
Arrhythmia Detection Patches
At-home Monitoring
Chest Straps
Disposable ECG Monitors
ECG Monitors
Wearable Devices
Wearable Patient Monitors
Wrist-worn
2470.421.12180 to +70
TQFN/28
WLP/30
$5.83 @1k
See All Bio-Sensors (14)
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.


MAX30001EVSYS: Evaluation Kit for the MAX30001/MAX30002
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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