SBASAL5 May   2022 AFE4960P

PRODUCTION DATA  

  1. 1Features
  2. 2Applications
  3. 3Description
  4. 4Revision History
  5. 5Device and Documentation Support
    1. 5.1 Documentation Support
      1. 5.1.1 Related Documentation
    2. 5.2 Receiving Notification of Documentation Updates
    3. 5.3 Support Resources
    4. 5.4 Trademarks
    5. 5.5 Electrostatic Discharge Caution
    6. 5.6 Glossary
  6. 6Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • Supports ECG and respiration impedance measurement; configurable as 2-channel ECG or 1-channel ECG + 1-channel respiration
  • Can be used in IEC 60601-2-47:2012/(R)2016 and IEC 60601-2-27:2011(R)2016 compliant systems
  • 222 μA/channel while operating as 2-channel ECG
  • Integrated Pace pulse detection on 1 channel
  • Supports a 3-lead ECG, extendable to 5 leads or higher by operating two or more AFEs in parallel
  • PPG signal chain for SpO2, Heart rate and PTT
  • ECG signal chain:
    • Single channel ECG acquisition up to 2.048 kHz
    • 2 channel ECG acquisition up to 1.36 kHz/channel
    • RLD output to set body bias through third electrode
    • Programmable INA gain from approximately 2 to 12
    • >1 GΩ input impedance, CMRR > 100 dB
    • Input noise (0.5-150 Hz): 13 µVpp at INA gain of 3; 5 μVpp at INA gain of 12
    • Integrated 370 Hz anti-aliasing low pass filter
    • Mode for continuous lead on/off detection
    • Mode for lead impedance measurement
  • Bio-Z signal chain:
    • Measurement of Bio-impedance over excitation frequency from 30 kHz to 100 kHz
    • Sine wave or square wave excitation
    • Respiration impedance measurement: 45 mΩ-pp noise on a baseline impedance of 2 kΩ
  • Dual channel ECG channel:
    • Bio-Z receiver configurable as a 2nd ECG channel
  • PPG Signal Chain
    • Supports acquisition of up to 24 PPG signals
    • Flexible allocation of 4 LED, 4 PD in each phase
    • 8-Bit LED Current control up to 250 mA
    • Low noise current DAC at input to cancel DC
    • Trans-impedance Gain: 3.7 kΩ to 1 MΩ
    • Filter to reduce sensor’s optical noise bandwidth
  • External clock and internal oscillator modes
  • FIFO with 128-sample Depth, 24-bit word
  • SPITM, I2C interfaces: Selectable by pin
  • 2.6-mm × 2.6-mm DSBGA, 0.4-mm Pitch
  • Supplies: Rx:1.7-1.9 V, IO:1.7-1.9 V, Tx: 3.0-5.5 V