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AFE49I30

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用于可穿戴式光学生物传感、具有 FIFO、I2C 和 ECG 的超低功耗集成 AFE

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AFE49I30

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数据表 立即订购

米6体育平台手机版_好二三四详情

Applications 1-lead ECG, Optical-HRM Number of input channels 4 Resolution (bps) 22 Number of LEDs 6 Interface type I2C Operating temperature range (°C) -40 to 85 Rating Catalog
Applications 1-lead ECG, Optical-HRM Number of input channels 4 Resolution (bps) 22 Number of LEDs 6 Interface type I2C Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YZ) 30 4.8 mm² 2.4 x 2
  • Supports signal acquisition of up to 24 phases
  • Flexible allocation of 6 LED, 4 PD in each PPG phase
  • Synchronized PPG/ECG signal acquisition with each phase configurable as PPG or ECG, and at different data rates
  • Synchronized PPG/ECG supports up to 1 kHz data rate
  • ECG-only mode supports up to 4 kHz data rate
  • PPG signal chain:
    • System SNR up to 108-dB at 16 µA PD current
    • Low current for continuous operation on a wearable device with a typical value: 15 µA for an LED, 20 µA for the receiver
  • PPG Transmitter:
    • Supports common anode LED configuration
    • 8-Bit programmable LED current with range adjustable from 25 mA to 250 mA
    • Mode to fire two LEDs in parallel with independent per-phase current control
    • Programmable LED on-time per-phase
    • Simultaneous support of 6 LEDs for SpO2, HRM, or multi-wavelength HRM
  • PPG Receiver:
    • Supports 4 time-multiplexed photodiode inputs
    • 2 parallel receivers to sample two PD channels simultaneously
    • Individual ambient offset subtraction DAC at each TIA Input with 8-bit per-phase control and range adjustable up to 255-µA
    • Individual LED offset subtraction DAC at each TIA input with 5-bit per-phase control and
      15.5-µA range
    • Close to 100 dB ambient rejection up to 10 Hz
    • Noise filtering with programmable bandwidth
    • Transimpedance Gain: 3.7 kΩ to 1 MΩ
  • ECG Signal Chain
    • 1-lead ECG with RLD output for bias
    • INA gain programmable from 1.6 – 13
    • <1 µVrms input noise (in a 1-150 Hz bandwidth) at 4-kHz sample rate
    • Integrated 450 Hz Low Pass Filter
    • AC, DC lead-off detect with 3.125-100 nA current and programmable interrupt
  • Supports external clock and internal oscillator modes
  • Option to acquire data synchronized with a system master clock
  • Automatic cancellation of DC from ambient, LED
  • FIFO with 128-sample depth
  • I2C interface
  • 2.6-mm × 2.1-mm DSBGA, 0.4-mm pitch
  • Supplies: Rx: 1.7 V-1.9 V (LDO bypass); 1.9 V-3.6 V (LDO enabled), Tx: 3 V-5.5 V, IO: 1.7-3.6 V
  • Supports operation with 2 supplies - 1.8 V, 5 V
  • Supports signal acquisition of up to 24 phases
  • Flexible allocation of 6 LED, 4 PD in each PPG phase
  • Synchronized PPG/ECG signal acquisition with each phase configurable as PPG or ECG, and at different data rates
  • Synchronized PPG/ECG supports up to 1 kHz data rate
  • ECG-only mode supports up to 4 kHz data rate
  • PPG signal chain:
    • System SNR up to 108-dB at 16 µA PD current
    • Low current for continuous operation on a wearable device with a typical value: 15 µA for an LED, 20 µA for the receiver
  • PPG Transmitter:
    • Supports common anode LED configuration
    • 8-Bit programmable LED current with range adjustable from 25 mA to 250 mA
    • Mode to fire two LEDs in parallel with independent per-phase current control
    • Programmable LED on-time per-phase
    • Simultaneous support of 6 LEDs for SpO2, HRM, or multi-wavelength HRM
  • PPG Receiver:
    • Supports 4 time-multiplexed photodiode inputs
    • 2 parallel receivers to sample two PD channels simultaneously
    • Individual ambient offset subtraction DAC at each TIA Input with 8-bit per-phase control and range adjustable up to 255-µA
    • Individual LED offset subtraction DAC at each TIA input with 5-bit per-phase control and
      15.5-µA range
    • Close to 100 dB ambient rejection up to 10 Hz
    • Noise filtering with programmable bandwidth
    • Transimpedance Gain: 3.7 kΩ to 1 MΩ
  • ECG Signal Chain
    • 1-lead ECG with RLD output for bias
    • INA gain programmable from 1.6 – 13
    • <1 µVrms input noise (in a 1-150 Hz bandwidth) at 4-kHz sample rate
    • Integrated 450 Hz Low Pass Filter
    • AC, DC lead-off detect with 3.125-100 nA current and programmable interrupt
  • Supports external clock and internal oscillator modes
  • Option to acquire data synchronized with a system master clock
  • Automatic cancellation of DC from ambient, LED
  • FIFO with 128-sample depth
  • I2C interface
  • 2.6-mm × 2.1-mm DSBGA, 0.4-mm pitch
  • Supplies: Rx: 1.7 V-1.9 V (LDO bypass); 1.9 V-3.6 V (LDO enabled), Tx: 3 V-5.5 V, IO: 1.7-3.6 V
  • Supports operation with 2 supplies - 1.8 V, 5 V

The AFE49I30 is an analog front-end for optical bio-sensing/ PPG and ECG measurement applications. The device supports up to six switching light-emitting diodes (LEDs) and up to four photodiodes. Up to 24 signal phases can be defined and the PPG or ECG signals can be acquired from each phase in a synchronized manner.

The AFE49I30 is an analog front-end for optical bio-sensing/ PPG and ECG measurement applications. The device supports up to six switching light-emitting diodes (LEDs) and up to four photodiodes. Up to 24 signal phases can be defined and the PPG or ECG signals can be acquired from each phase in a synchronized manner.
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AFE4950 正在供货 适用于可穿戴设备、光学心率监测和 SpO2 的超小型集成式 AFE ECG+PPG AFE with integrated high-pass, low-pass filters optimized for dry electrodes.

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类型 标题 下载最新的英语版本 日期
* 数据表 AFE49I30 Ultra-Small, Integrated AFE With FIFO for Multi-Sensor Wearable, Optical Heart-Rate Monitoring and Bio-sensing 数据表 PDF | HTML 2020年 4月 13日

设计和开发

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评估板

AFE44S30EVM — AFE4430 集成可穿戴光学生物传感 AFE，配备 FIFO 和 SPI 评估模块

AFE44S30 评估模块 (EVM) 是一个用于评估 AFE44S30 器件的平台，该器件作为模拟前端 (AFE)，用于光学生物传感应用，例如心率监测 (HRM) 和外周毛细血管血氧饱和度 (SpO2) 测量。AFE44S30 支持八个开关式发光二极管 (LED) 和四个光电二极管。光电二极管的电流通过跨阻放大器 (TIA) 转换为电压，并使用模数转换器 (ADC) 进行数字化。ADC 代码可存储在具有可编程深度的 128 样本 FIFO 中。可以对 FIFO 深度进行分区，以容纳需要存储的相位。可使用串行外设接口 (SPI) 对 FIFO 进行读取。

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评估板

AFE49I30EVM — AFE49I30 用于可穿戴光学生物传感的超低功耗集成式 AFE 评估模块

AFE49I30 评估模块 (EVM) 是一种用于加速和评估 AFE49I30 器件相关系统开发活动的平台。AFE49I30 模拟前端 (AFE) 适用于心率监测 (HRM) 和外周毛细血管氧饱和度 (SpO2) 测量等光学生物传感应用。

AFE49I30 支持 6 个开关发光二极管 (LED) 和 4 个光电二极管。光电二极管的电流通过跨阻放大器 (TIA) 转换为电压，并使用模数转换器 (ADC) 进行数字化。ADC 代码可存储在具有可编程深度的 128 样本 FIFO 中。可以对 FIFO 深度进行分区，以容纳需要存储的相位。可使用串行外设接口 (SPI) 对 FIFO 进行读取。

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借助 PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短米6体育平台手机版_好二三四上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
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DSBGA (YZ) 30 Ultra Librarian
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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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