Controlador o biblioteca
AFE4403
Extremo frontal analógico integrado (AFE) ultrapequeño para monitores de frecuencia cardiaca y pulsi
Hoja de datos
AFE4403
- 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.
Documentación técnica
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Ver todo 5 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | AFE4403 Ultra-Small, Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters datasheet (Rev. C) | PDF | HTML | 18 nov 2020 |
| White paper | Evolving Semiconductor Technologies for Modern Telehealth Applications | 26 oct 2020 | ||
| Technical article | Designing compact, efficient and high performing multiparameter patient monitors | PDF | HTML | 25 jun 2019 | |
| Application note | How to Design an SpO2 and OHRM System Using AFE4403 | 02 mar 2015 | ||
| EVM User's guide | AFE4403EVM User's Guide (Rev. B) | 21 jul 2014 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
Placa de evaluación
AFE4403EVM — AFE integrado AFE4403 para módulo de evaluación de monitores de frecuencia cardiaca y pulsioxímetros
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 (...)
Guía del usuario: PDF
Firmware
SLAC677 — AFE4403EVM Firmware Source v2.3
Productos y hardware compatibles
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AFE para biosensores
Desarrollo de hardware
Placa de evaluación
Firmware
SLAC703 — AFE4403 WristWatch EVM Firmware Source v2.3
Productos y hardware compatibles
Productos
AFE para biosensores
GUI para el módulo de evaluación (EVM)
SLAC672 — AFE4403EVM GUI v2.2
Productos y hardware compatibles
Productos
AFE para biosensores
Desarrollo de hardware
Placa de evaluación
Herramienta de simulación
PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Diseños de referencia
TIDA-00311 — Diseño de referencia de pulsioxímetro miniaturizado
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 (...)
Diseños de referencia
TIDA-00301 — Diseño de referencia de frecuencia cardiaca óptica miniaturizada
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 (...)
| Paquete | Pasadores | Descargar |
|---|---|---|
| DSBGA (YZP) | 36 | Ver opciones |
Pedidos y calidad
Información incluida:
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
Información incluida:
- Lugar de fabricación
- Lugar de ensamblaje
Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.
Soporte y capacitación
Foros de TI E2E™ con asistencia técnica de los ingenieros de TI
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