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Ultra-Low Power, Single-Channel Integrated Biopotential HR Detection AFE

Ultra-Low Power, Single Channel Integrated Biopotential HR Detection AFE

产品详情

主要特征

Parametric specs for Bio-Sensors
Integrated LEDs R-R Detection
ISUPPLY (µA) (typ) 100
Shutdown Mode Supply Current (µA) (typ) 0.42
VSUPPLY (V) (min) 1.1
VSUPPLY (V) (max) 2
Resolution (bits) (ADC) 18
Oper. Temp. (°C) 0 to +70
Package/Pins WLP/30
Budgetary
Price (See Notes)
3.59
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参量

Parametric specs for Bio-Sensors
Integrated LEDs R-R Detection
ISUPPLY (µA) (typ) 100
Shutdown Mode Supply Current (µA) (typ) 0.42
VSUPPLY (V) (min) 1.1
VSUPPLY (V) (max) 2
Resolution (bits) (ADC) 18
Oper. Temp. (°C) 0 to +70
Package/Pins WLP/30
Budgetary
Price (See Notes)
3.59

主要特征

  • Heart Rate Detection with Interrupt Feature Eliminates the Need to Extract and Process the ECG Data on the Microcontroller
    • Robust R-R Detection in High Motion Environment at Extremely Low Power
  • Clinical-Grade Biopotential AFE with High-Resolution Data Converter
    • 15.5 Bits Effective Resolution with 5µVP-P Noise
  • 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 > 500MΩ for Extremely Low Common-to-Differential Mode Conversion
  • 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 Will Help the AFE Not Saturate in the Presence of Motion/Direct Electrode Hits
  • Longer Battery Life Compared to Competing Solutions
    • 85µW at 1.1V Supply Voltage
  • Leads-On Interrupt Feature Keeps µC in Deep Sleep Mode with RTC Off Until Valid Lead Condition is Detected
    • Lead-On Detect Current: 0.7µA (typ)
  • Configurable Interrupts Allows the µC Wake-Up Only on Every Heart Beat Reducing the Overall System Power
  • High-Speed SPI Interface
  • Shutdown Current of 0.5µA (typ)

应用/用途

  • 胸带心率监测仪,适合健身应用
  • 单导联事件监护仪,用于心率不齐检测

描述

The MAX30004 is a complete, biopotential, HR detection analog front-end solution for wearable applications, especially for chest straps and patches. It offers high performance for clinical and fitness applications, with ultra-low power for long battery life. The MAX30004 is a single biopotential channel providing R-R intervals for heart rate detection.

The biopotential channel has 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. The biopotential 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 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 electrosurgery.

The MAX30004 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.

简化框图

MAX30004: Functional Diagram MAX30004: Functional Diagram Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心