Ultra-Low-Power, Single-Channel Integrated Bioimpedance (BioZ) AFE

Ultra-Low Power, Small Package, Single Channel Integrated Bioimpedance (BioZ) AFE for Fitness and Medical Applications.

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The MAX30002 is a complete 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 MAX30002 is a single bioimpedance channel capable of measuring respiration.

The bioimpedance channel has ESD protection, EMI filtering, internal lead biasing, DC leads-off detection, ultra-low-power leads-on detection during standby mode, and a programmable resistive load for built-in self-test. Soft power-up sequencing ensures no large transients are injected into the electrodes. The channel also has 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 bioimpedance channel includes integrated programmable current drive, works with common electrodes, and has the flexibility for 2 or 4 electrode measurements. It also has AC lead off detection.

The MAX30002 is available in a 28-pin TQFN and 30-bump wafer-level package (WLP), operating over the 0°C to +70°C commercial temperature range.
MAX30002: Typical Application Circuit MAX30002: Typical Application Circuit Enlarge+

Key Features

  • BioZ AFE with High Resolution Data Converter
    • 17 Bits ENOB with 1.1µVP-P Noise for BioZ
  • High AC Dynamic Range of 90mVP-P Will Help Prevent Saturation in the Presence of Motion/Direct Electrode Hits
  • Longer Battery Life Compared to Competing Solutions
    • 158µW at 1.1V Supply Voltage
  • Leads-On Interrupt Feature Allows to Keep µC in Deep Sleep Mode Until Valid Lead Condition is Detected
    • Lead-On Detect Current: 0.63µA (typ)
  • High Accuracy Allows for More Physiological Data Extractions
  • 8-Word FIFO Allows the MCU to Stay Powered Down for 256ms with Full Data Acquisition
  • High-Speed SPI Interface
  • Shutdown Current of 0.58µA (typ)


  • Impedance Based Heart Rate Detection
  • Respiration and Hydration Monitors
  • Single-Lead Wireless Patches for In-Patient/Out-Patient Monitoring
Part NumberApplicationsISUPPLY
Shutdown Mode Supply Current
Oper. Temp.
typtypminmaxADCSee Notes
At-home Monitoring
Wearable Devices
Wearable Patient Monitors
15001.12200 to +70
$4.14 @1k
See All Bio-Sensors (15)
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.

Technical Documents

Tutorial 6778 How to Measure Biopotential ECG Using a Chest Strap

Quality and Environmental Data

Request Reliability Report for: MAX30002 
Lead-Free Package Tin (Sn) Whisker Reports
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.

Quality Management System >
Environmental Management System >


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