홈 데이터 컨버터 통합 및 특수 기능 데이터 컨버터 의료용 AFE 바이오센싱 AFE
홈
데이터 컨버터
통합 및 특수 기능 데이터 컨버터
의료용 AFE
바이오센싱 AFE

AFE4950

활성

웨어러블, 광학 심박수 모니터링 및 SpO2를 위한 초소형 통합 AFE

지금 주문
데이터시트

AFE4950

활성
데이터시트 지금 주문

제품 상세 정보

Applications 1-lead ECG, BP, Dry electrode ECG, HRV, Optical-HRM, SpO2, Vo2 max Number of input channels 4 Resolution (Bits) 22 Number of LEDs 8 Interface type I2C, SPI Operating temperature range (°C) -40 to 85 Rating Catalog
Applications 1-lead ECG, BP, Dry electrode ECG, HRV, Optical-HRM, SpO2, Vo2 max Number of input channels 4 Resolution (Bits) 22 Number of LEDs 8 Interface type I2C, SPI Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YBG) 36 5.76 mm² 2.4 x 2.4
  • Supports simultaneous and synchronized acquisition of up to 24 PPG and a single-lead ECG signal.
  • Flexible allocation of 8 LED, 4 PD in each phase
  • ECG signal chain:
    • 1-lead ECG signal acquisition up to 2 kHz
    • RLD output to drive a third electrode
    • Input noise : 0.7 µV-rms
    • Supports up to ±0.65 V differential DC offset and +/-0.55 V common mode range
    • Programmable INA gain: 11, 21
    • High-pass filter with quick saturation recovery
    • Integrated 300 Hz anti-aliasing low pass filter
    • AC, DC lead-off detect: 2.9 nA to 92.5 nA
    • Low power continuous lead-on detection
  • Impedance signal chain
    • Continuous low-power monitoring of impedance between 2 electrodes
    • 7 MΩ range
    • 300 Ω noise on 620 kΩ
  • PPG Transmitter:
    • 8-Bit Programmable LED Current with range adjustable from 25 mA to 250 mA
    • Mode to fire two LEDs in parallel
    • Support of 8 LEDs in Common Anode configuration for SpO2, Multi-Wavelength HRM
  • PPG Receiver:
    • 2 parallel receivers (two sets of TIA/ filter)
    • Supports 4 Time-Multiplexed Photodiode Inputs to each Receiver
    • 8-bit Ambient Offset subtraction at each TIA input with 256 µA range
    • 8-bit LED Offset Subtraction DAC with 64 µA range
    • Automatic ambient cancellation and dynamic LED DC cancellation at TIA input
    • Ambient rejection close to 100 dB up to 10 Hz
    • Noise filtering with programmable bandwidth
    • Trans-impedance Gain: 3.7 kΩ to 1 MΩ
  • Accurate, Continuous Heart-Rate Monitoring:
    • System SNR up to 109-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
  • External clock and internal oscillator modes
  • Acquire data synchronized with system master clock
  • FIFO with 256-sample Depth
  • SPI, I2C interfaces: Selectable by pin
  • 2.6-mm × 2.5-mm DSBGA, 0.4-mm Pitch
  • Supplies: Rx:1.7-1.9V (LDO Bypass); 1.9-3.6V (LDO Enabled), Tx:3-5.5V, IO:1.7-RX_SUP
  • Supports simultaneous and synchronized acquisition of up to 24 PPG and a single-lead ECG signal.
  • Flexible allocation of 8 LED, 4 PD in each phase
  • ECG signal chain:
    • 1-lead ECG signal acquisition up to 2 kHz
    • RLD output to drive a third electrode
    • Input noise : 0.7 µV-rms
    • Supports up to ±0.65 V differential DC offset and +/-0.55 V common mode range
    • Programmable INA gain: 11, 21
    • High-pass filter with quick saturation recovery
    • Integrated 300 Hz anti-aliasing low pass filter
    • AC, DC lead-off detect: 2.9 nA to 92.5 nA
    • Low power continuous lead-on detection
  • Impedance signal chain
    • Continuous low-power monitoring of impedance between 2 electrodes
    • 7 MΩ range
    • 300 Ω noise on 620 kΩ
  • PPG Transmitter:
    • 8-Bit Programmable LED Current with range adjustable from 25 mA to 250 mA
    • Mode to fire two LEDs in parallel
    • Support of 8 LEDs in Common Anode configuration for SpO2, Multi-Wavelength HRM
  • PPG Receiver:
    • 2 parallel receivers (two sets of TIA/ filter)
    • Supports 4 Time-Multiplexed Photodiode Inputs to each Receiver
    • 8-bit Ambient Offset subtraction at each TIA input with 256 µA range
    • 8-bit LED Offset Subtraction DAC with 64 µA range
    • Automatic ambient cancellation and dynamic LED DC cancellation at TIA input
    • Ambient rejection close to 100 dB up to 10 Hz
    • Noise filtering with programmable bandwidth
    • Trans-impedance Gain: 3.7 kΩ to 1 MΩ
  • Accurate, Continuous Heart-Rate Monitoring:
    • System SNR up to 109-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
  • External clock and internal oscillator modes
  • Acquire data synchronized with system master clock
  • FIFO with 256-sample Depth
  • SPI, I2C interfaces: Selectable by pin
  • 2.6-mm × 2.5-mm DSBGA, 0.4-mm Pitch
  • Supplies: Rx:1.7-1.9V (LDO Bypass); 1.9-3.6V (LDO Enabled), Tx:3-5.5V, IO:1.7-RX_SUP

The AFE4950 device is an analog front-end (AFE) for synchronized signal acquisition of PPG and ECG signals. The device can also be used for optical bio-sensing applications, such as heart-rate monitoring (HRM) and saturation of peripheral capillary oxygen (SpO2). The ECG signal chain supports 2- and 3-electrode configurations and has an integrated Right leg drive (RLD) buffer. The ECG signal chain can also be used to do a continuous, low-power monitoring of the impedance between pair of electrodes.

The AFE4950 device is an analog front-end (AFE) for synchronized signal acquisition of PPG and ECG signals. The device can also be used for optical bio-sensing applications, such as heart-rate monitoring (HRM) and saturation of peripheral capillary oxygen (SpO2). The ECG signal chain supports 2- and 3-electrode configurations and has an integrated Right leg drive (RLD) buffer. The ECG signal chain can also be used to do a continuous, low-power monitoring of the impedance between pair of electrodes.
open-in-new 기타 바이오센싱 AFE 찾기
다운로드 스크립트와 함께 비디오 보기 동영상
Information

추가 정보 요청

전체 데이터시트 및 기타 설계 리소스는 NDA에 따라 제공됩니다. 지금 요청

관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
AFE49I30 활성 FIFO, I2C 및 ECG를 지원하는 웨어러블 광학 바이오센싱용 초저전력 통합 AFE Six LEDs with 600-Hz LPF

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기8
유형 직함 날짜
* Data sheet AFE4950 Ultra-Small, Integrated AFE for Wearable Optical Heart-Rate Monitoring, SpO2 and Electrical Bio-sensing datasheet (Rev. B) PDF | HTML 2021/07/15
Product overview ECG and Cuffless Blood Pressure Monitoring With Integrated AFE PDF | HTML 2023/10/30
Product overview Photoplethysmography (PPG) With Integrated AFE for Optical Biosensing PDF | HTML 2023/10/30
Application brief ECG Signal Acquisition on Wearables PDF | HTML 2022/11/15
Application brief Measuring Oxygen Saturation (SpO2) on Wearables PDF | HTML 2022/11/14
Application brief Optical Heart Rate Monitoring (OHRM) on Wearables PDF | HTML 2022/11/14
Application brief Cuffless Blood Pressure Monitoring on Wearables PDF | HTML 2022/11/09
Technical article Solving 5 challenges of ECG signal acquisition in wearables PDF | HTML 2021/07/21

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

AFE4950EVM — 웨어러블 광학 심박수 모니터링을 위한 AFE4950 초소형 통합 AFE 평가 모듈

The AFE4950 evaluation module (EVM) is designed to expedite evaluation and system-development activities related to the AFE4950 product. AFE4950 is an analog front end (AFE) for synchronized signal acquisition of PPG and ECG signals. AFE4950 can also be used for optical biosensing applications, (...)

요청
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HeartKey is a powerful and accurate set of ECG algorithms, ready for integration into the next generation low power low memory consumer / IoT & medical devices such as smartwatches, smart clothing, medical, automotive, smart home devices and hand-held devices. HeartKey is comprised of advanced (...)
발송: B Secur
파트너 사이트 방문
시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
요청
패키지 핀 다운로드
DSBGA (YBG) 36 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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