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AFE4403

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Extrem kleines integriertes AFE mit FIFO für tragbare optische Herzfrequenzüberwachung und kostengün

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AFE4403

AKTIV
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Produktdetails

Applications Clinical fingertip pulse oximetry, Optical-HRM, SpO2 Number of input channels 1 Resolution (Bits) 22 Interface type SPI Operating temperature range (°C) -20 to 70 Rating Catalog
Applications Clinical fingertip pulse oximetry, Optical-HRM, SpO2 Number of input channels 1 Resolution (Bits) 22 Interface type SPI Operating temperature range (°C) -20 to 70 Rating Catalog
DSBGA (YZP) 36 10.5625 mm² (— mm × — mm)
  • Fully-Integrated AFE for Pulse Oximeter and Heart Rate Monitoring Applications:
  • Transmit:
    • Integrated Dual LED Driver (H-Bridge or Common Anode)
    • Option for a Third LED Support for Optimized SPO2, HRM, or Multi-Wavelength HRM
    • Up to 110-dB Dynamic Range
    • LED Current:
      • Programmable to 100 mA with 8-Bit Current Resolution
    • 30 µA + Average LED Current
    • Programmable LED On-Time
    • Independent LED2 and LED1 Current Reference
  • Receive Channel with High Dynamic Range:
    • 22-Bit Output in Twos Complement Format
    • Up to 105-dB Dynamic Range
    • Low Power: < 650 µA
    • Dynamic Power-Down Mode to Reduce Current to 300 µA
    • Adaptable to a Very Wide Range of Signal Amplitudes:
      • Total Programmable Gain: 10 kΩ to 4 MΩ
    • Integrated Digital Ambient Estimation and Subtraction
  • Flexible Clocking by External Clock or Crystal:
    • Pulse Frequency: 62.5 SPS to 2000 SPS
    • Flexible Pulse sequencing and Timing Control
    • Input Clock Range: 4 MHz (Min) to 60 MHz (Max)
  • Integrated Fault Diagnostics:
    • Photodiode and LED Open and Short Detection
  • Supplies:
    • Rx = 2.0 V to 3.6 V
    • Tx = 3.0 V to 5.25 V
  • Package: Compact DSBGA-36 (3.07 mm × 3.07 mm × 0.5 mm)
  • Specified Temperature Range: 0°C–20°C to 70°C
  • Fully-Integrated AFE for Pulse Oximeter and Heart Rate Monitoring Applications:
  • Transmit:
    • Integrated Dual LED Driver (H-Bridge or Common Anode)
    • Option for a Third LED Support for Optimized SPO2, HRM, or Multi-Wavelength HRM
    • Up to 110-dB Dynamic Range
    • LED Current:
      • Programmable to 100 mA with 8-Bit Current Resolution
    • 30 µA + Average LED Current
    • Programmable LED On-Time
    • Independent LED2 and LED1 Current Reference
  • Receive Channel with High Dynamic Range:
    • 22-Bit Output in Twos Complement Format
    • Up to 105-dB Dynamic Range
    • Low Power: < 650 µA
    • Dynamic Power-Down Mode to Reduce Current to 300 µA
    • Adaptable to a Very Wide Range of Signal Amplitudes:
      • Total Programmable Gain: 10 kΩ to 4 MΩ
    • Integrated Digital Ambient Estimation and Subtraction
  • Flexible Clocking by External Clock or Crystal:
    • Pulse Frequency: 62.5 SPS to 2000 SPS
    • Flexible Pulse sequencing and Timing Control
    • Input Clock Range: 4 MHz (Min) to 60 MHz (Max)
  • Integrated Fault Diagnostics:
    • Photodiode and LED Open and Short Detection
  • Supplies:
    • Rx = 2.0 V to 3.6 V
    • Tx = 3.0 V to 5.25 V
  • Package: Compact DSBGA-36 (3.07 mm × 3.07 mm × 0.5 mm)
  • Specified Temperature Range: 0°C–20°C to 70°C

The AFE4403 is a fully-integrated analog front-end (AFE) ideally suited for pulse oximeter applications. The device consists of a low-noise receiver channel with an integrated analog-to-digital converter (ADC), an LED transmit section, and diagnostics for sensor and LED fault detection. The device is a very configurable timing controller. This flexibility enables the user to have complete control of the device timing characteristics. To ease clocking requirements and provide a low-jitter clock to the AFE4403, an oscillator is also integrated that functions from an external crystal. The device communicates to an external microcontroller or host processor using an SPI™ interface.

The device is a complete AFE solution packaged in a single, compact DSBGA-36 (3.07 mm × 3.07 mm × 0.5 mm) and is specified over the operating temperature range of –20°C to 70°C.

The AFE4403 is a fully-integrated analog front-end (AFE) ideally suited for pulse oximeter applications. The device consists of a low-noise receiver channel with an integrated analog-to-digital converter (ADC), an LED transmit section, and diagnostics for sensor and LED fault detection. The device is a very configurable timing controller. This flexibility enables the user to have complete control of the device timing characteristics. To ease clocking requirements and provide a low-jitter clock to the AFE4403, an oscillator is also integrated that functions from an external crystal. The device communicates to an external microcontroller or host processor using an SPI™ interface.

The device is a complete AFE solution packaged in a single, compact DSBGA-36 (3.07 mm × 3.07 mm × 0.5 mm) and is specified over the operating temperature range of –20°C to 70°C.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt AFE4403 Ultra-Small, Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters datasheet (Rev. C) PDF | HTML 18.11.2020
Whitepaper Fortschrittliche Halbleitertechnologie für moderne Telemedizin-Anwendungen Download English Version 28.10.2020
Technischer Artikel Designing compact, efficient and high performing multiparameter patient monitors PDF | HTML 25.06.2019
Anwendungshinweis How to Design an SpO2 and OHRM System Using AFE4403 02.03.2015

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

AFE4403EVM — AFE4403 – integriertes Analog-Frontend für Herzfrequenzmonitore und preiswerte Pulsoximeter

The AFE4403EVM is intended for evaluating the AFE4403 device. The fully integrated AFE is ideally suited for Pulse Oximeter and Heart rate monitoring applications and consists of low noise receive channel, the LED transmit section and diagnostics for sensor and LED fault detection. The AFE4403 has (...)

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Treiber oder Bibliothek

AFE4403SW-DESIGN — Linux-Treiber für AFE4403

Please find the AFE4403 Linux Driver here
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Treiber oder Bibliothek

SLAC713 — AFE4403 Driver Code for CC2640

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Firmware

SLAC677 — AFE4403EVM Firmware Source v2.3

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Firmware

SLAC703 — AFE4403 WristWatch EVM Firmware Source v2.3

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GUI für Evaluierungsmodul (EVM)

SLAC672 — AFE4403EVM GUI v2.2

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Simulationsmodell

AFE4403 IBIS Model

SBAM194.ZIP (28 KB) - IBIS-Modell
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Referenzdesign

TIDA-00301 — Miniaturisiertes Referenzdesign zur optischen Herzfrequenzmessung

This reference design is for a miniaturized Optical Heart Rate Monitor measurement solution (no chest strap!) specifically targeted for wearable and mobile applications. The small form factor module can easily interface to smartphones, tablets, and wearables. With TI's AFE4403 AFE, you can (...)

Unterstützte Produkte und Hardware
Referenzdesign

TIDA-00311 — Referenzdesign für miniaturisiertes Pulsoximeter

This reference design is for a miniturized pulse oximeter specifically designed for high end clinical applications. The small form factor module can easily simplify and accelerate pulse oximeter system design. Featuring TI's AFE4403 Analog Front End for interfacing with the LED and Photodiode (...)

Unterstützte Produkte und Hardware
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
DSBGA (YZP) 36 Ultra Librarian
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