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AFE159RP3

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Low-power 3-channel ECG AFE with respiration, pacemaker, lead-off & lead quality detection, and FIFO

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Data sheet

AFE159RP3

ACTIVE
Data sheet Order now

Product details

Applications AEDs, ECG patch, EEG, EMG, Evoked audio potential (EAP), Fetal ECG, Holter monitor and multi-lead patch, Patient monitoring, Respiration, Sleep study monitor, Telemedicine bispectral index (BIS) Number of input channels 3 Resolution (Bits) 24 Interface type SPI Operating temperature range (°C) -20 to 85 Rating Catalog
Applications AEDs, ECG patch, EEG, EMG, Evoked audio potential (EAP), Fetal ECG, Holter monitor and multi-lead patch, Patient monitoring, Respiration, Sleep study monitor, Telemedicine bispectral index (BIS) Number of input channels 3 Resolution (Bits) 24 Interface type SPI Operating temperature range (°C) -20 to 85 Rating Catalog
DSBGA (YAF) 49 13.387056 mm² 3.694 x 3.624
  • Integrated Signal Chain for ECG, Pace Detection, and Respiration Measurement
  • ECG Receiver
    • Four high resolution channels at low power of 0.42mW/channel
    • Flexible four leads selectable from six electrodes
    • Programmable gain: 1.25 to 9
    • Input-referred noise: 4µVPP in 150Hz BW
    • Differential input range: ±1V with Gain = 4
    • CMRR: -140dB
    • Data rate: 125SPS to 128kSPS
  • Pace Detection
    • On-chip digital pace detection algorithm on programmable two leads
    • High-speed 128kSPS pace output on two channels for software pace detection
  • Respiration
    • Low-noise of 24mΩPP with 2kΩ body impedance and 1kΩ defibrillator protection resistor on each electrode
    • Supports Sine and Square wave excitation
  • Other Features
    • Built-in right leg drive amplifier steerable to any electrode
    • DC lead-off detection, AC lead impedance detection, Wilson Center Terminal (WCT), Goldberger Central Terminals (GCT), test signals
    • Battery voltage monitoring
    • Flexible power-down and standby modes
    • Built-in oscillator, PLL, and reference
    • 1k sample main FIFO and 2k sample pace FIFO
    • SPI-compatible serial interface
    • Analog supply voltage 1: 3.15V to 5.25V
    • Analog supply voltage 2: 1.7V to 1.9V
    • I/O supply voltage: 1.65V to 3.6V
  • Supports systems meeting AAMI EC11, AMI EC13, AMI EC38, IEC60601-1, IEC60601-2-25, IEC60601-2-27, and IEC60601-2-51 standards
  • Integrated Signal Chain for ECG, Pace Detection, and Respiration Measurement
  • ECG Receiver
    • Four high resolution channels at low power of 0.42mW/channel
    • Flexible four leads selectable from six electrodes
    • Programmable gain: 1.25 to 9
    • Input-referred noise: 4µVPP in 150Hz BW
    • Differential input range: ±1V with Gain = 4
    • CMRR: -140dB
    • Data rate: 125SPS to 128kSPS
  • Pace Detection
    • On-chip digital pace detection algorithm on programmable two leads
    • High-speed 128kSPS pace output on two channels for software pace detection
  • Respiration
    • Low-noise of 24mΩPP with 2kΩ body impedance and 1kΩ defibrillator protection resistor on each electrode
    • Supports Sine and Square wave excitation
  • Other Features
    • Built-in right leg drive amplifier steerable to any electrode
    • DC lead-off detection, AC lead impedance detection, Wilson Center Terminal (WCT), Goldberger Central Terminals (GCT), test signals
    • Battery voltage monitoring
    • Flexible power-down and standby modes
    • Built-in oscillator, PLL, and reference
    • 1k sample main FIFO and 2k sample pace FIFO
    • SPI-compatible serial interface
    • Analog supply voltage 1: 3.15V to 5.25V
    • Analog supply voltage 2: 1.7V to 1.9V
    • I/O supply voltage: 1.65V to 3.6V
  • Supports systems meeting AAMI EC11, AMI EC13, AMI EC38, IEC60601-1, IEC60601-2-25, IEC60601-2-27, and IEC60601-2-51 standards

The AFE1594 is a family of multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with built-in programmable gain Instrumentation Amplifiers (INAs), internal reference, and an on-chip PLL. The AFE supports digital pace pulse detection, thoracic impedance measurement and incorporates all of the features that are commonly required in medical electrocardiogram (ECG) and electroencephalogram (EEG) applications. Multiple AFE159x devices can be cascaded in high channel count systems. With high levels of integration and exceptional performance, the AFE159x enables the development of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.

The AFE1594 is a family of multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with built-in programmable gain Instrumentation Amplifiers (INAs), internal reference, and an on-chip PLL. The AFE supports digital pace pulse detection, thoracic impedance measurement and incorporates all of the features that are commonly required in medical electrocardiogram (ECG) and electroencephalogram (EEG) applications. Multiple AFE159x devices can be cascaded in high channel count systems. With high levels of integration and exceptional performance, the AFE159x enables the development of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.
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* Data sheet AFE159x Low-Power, 4-Channel, 24-Bit Analog Front-Ends for Bio-Potential Measurements datasheet (Rev. A) PDF | HTML 12 Nov 2024

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The AFE1594 evaluation kit is a development platform to evaluate the performance of AFE1594 for patient monitoring and diagnostic applications. AFE1594 is a family of multichannel, simultaneous-sampling 24-bit delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with built-in programmable gain (...)
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