AFE49I30

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用于可穿戴式光學(xué)生物傳感、具有 FIFO、I2C 和 ECG 的超低功耗集成 AFE

產(chǎn)品詳情

Applications ECG patch, HRV, Optical-HRM for wearables, PTT-based blood pressure, Patient monitoring, Sleep study monitor, SpO2, Vo2 max Number of input channels 4 Resolution (Bits) 22 Number of LEDs 6 Interface type I2C Operating temperature range (°C) -40 to 85 Rating Catalog
Applications ECG patch, HRV, Optical-HRM for wearables, PTT-based blood pressure, Patient monitoring, Sleep study monitor, SpO2, Vo2 max Number of input channels 4 Resolution (Bits) 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 正在供貨 適用于可穿戴設(shè)備、光學(xué)心率監(jiān)測(cè)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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* 數(shù)據(jù)表 AFE49I30 Ultra-Small, Integrated AFE With FIFO for Multi-Sensor Wearable, Optical Heart-Rate Monitoring and Bio-sensing 數(shù)據(jù)表 PDF | HTML 2020年 4月 13日

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評(píng)估板

AFE44S30EVM — AFE4430 集成可穿戴光學(xué)生物傳感 AFE，配備 FIFO 和 SPI 評(píng)估模塊

AFE44S30 評(píng)估模塊 (EVM) 是一個(gè)用于評(píng)估 AFE44S30 器件的平臺(tái)，該器件為模擬前端 (AFE)，用于光學(xué)生物傳感應(yīng)用，例如心率監(jiān)測(cè) (HRM) 和外周毛細(xì)血管血氧飽和度 (SpO2) 測(cè)量。AFE44S30 支持八個(gè)開(kāi)關(guān)發(fā)光二極管 (LED) 和四個(gè)光電二極管。光電二極管的電流通過(guò)跨阻放大器 (TIA) 轉(zhuǎn)換為電壓，并使用模數(shù)轉(zhuǎn)換器 (ADC) 進(jìn)行數(shù)字化。ADC 代碼可存儲(chǔ)在具有可編程深度的 128 樣本 FIFO 中。可以對(duì) FIFO 深度進(jìn)行分區(qū)，以容納需要存儲(chǔ)的相位?？墒褂么型庠O(shè)接口 (SPI) 對(duì) FIFO 進(jìn)行讀取。

AFE44S30 還配有帶 8 (...)

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評(píng)估板

AFE49I30EVM — AFE49I30 用于可穿戴光學(xué)生物傳感的超低功耗集成式 AFE 評(píng)估模塊

AFE49I30 評(píng)估模塊 (EVM) 是一種用于加速和評(píng)估 AFE49I30 器件相關(guān)系統(tǒng)開(kāi)發(fā)活動(dòng)的平臺(tái)。AFE49I30 模擬前端 (AFE) 適用于心率監(jiān)測(cè) (HRM) 和外周毛細(xì)血管氧飽和度 (SpO2) 測(cè)量等光學(xué)生物傳感應(yīng)用。

AFE49I30 支持 6 個(gè)開(kāi)關(guān)發(fā)光二極管 (LED) 和 4 個(gè)光電二極管。光電二極管的電流通過(guò)跨阻放大器 (TIA) 轉(zhuǎn)換為電壓，并使用模數(shù)轉(zhuǎn)換器 (ADC) 進(jìn)行數(shù)字化。ADC 代碼可存儲(chǔ)在具有可編程深度的 128 樣本 FIFO 中?？梢詫?duì) FIFO 深度進(jìn)行分區(qū)，以容納需要存儲(chǔ)的相位?？墒褂么型庠O(shè)接口 (SPI) 對(duì) FIFO 進(jìn)行讀取。

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BSECUR-3P-ALGORITHMS — B SECUR ECG Algorithms and Electrode Design Services

HeartKey 是一套功能強(qiáng)大的精確 ECG 算法，可隨時(shí)集成到下一代低功耗低內(nèi)存消費(fèi)類/IoT 和醫(yī)療設(shè)備中，如智能手表、智能服裝、醫(yī)療、汽車、智能家居設(shè)備和手持設(shè)備。HeartKey 可提供有關(guān)用戶 ID、保健與健康的高級(jí)功能，由內(nèi)部專家經(jīng)多年研究后開(kāi)發(fā)出來(lái)，這套獨(dú)特算法包括獲 FDA 批準(zhǔn)的心律失常分析。請(qǐng)?jiān)诖颂幉榭?HeartKey 算法集的完整列表：https://www.b-secur.com/partners/texas-instruments

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DSBGA (YZ) 30 Ultra Librarian

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  • 引腳鍍層/焊球材料
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