AFE4410

활성

웨어러블 광학 심박수 모니터링 및 바이오센싱을 위한 FIFO가 포함된 저전력 통합 AFE

제품 상세 정보

Applications Optical-HRM Number of input channels 3 Resolution (Bits) 22 Number of LEDs 4 Interface type I2C, SPI Operating temperature range (°C) -20 to 70 Rating Catalog
Applications Optical-HRM Number of input channels 3 Resolution (Bits) 22 Number of LEDs 4 Interface type I2C, SPI Operating temperature range (°C) -20 to 70 Rating Catalog
DSBGA (YZ) 30 4.8 mm² 2.4 x 2
  • Accurate, Continuous Heart-Rate Monitoring:
    • Up to 100-dB Dynamic Range for Accurate Heart-Rate Detection
    • Low Current for Continuous Operation on a Wearable Device With a Typical Value:
      • 30 µA for an LED, 25 µA for the Receiver
  • Transmitter:
    • 4 LEDs in Common Anode Configurations
    • 8-Bit Programmable LED Current to 200 mA
    • Mode to Fire Two LEDs in Parallel
    • Programmable LED On-Time
    • Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multiwavelength HRM
    • Average Current of 30 µA Adequate for a Typical Heart-Rate Monitoring Scenario:
      • 20-mA Setting, 60-µs Pulse Duration,
        25-Hz Sampling Rate
  • Receiver:
    • Supports 3 Time-Multiplexed PD Inputs
    • 24-Bit Representation of Current Input From PD in Two’s-Complement Format
    • Individual DC Offset Subtraction DAC
      (Up to ±127-µA Range) at TIA Input for Each LED, Ambient
    • Digital Ambient Subtraction at ADC Output
    • Transimpedance Gain: 10 kΩ to 2 MΩ
    • Noise Filtering With Programmable Bandwidth
    • Receiver Operates at Approximately 1-µA/Hz Sampling Rate (Example, 25 µA at 25 Hz)
    • Hardware Power-Down Mode: Approximately 0-µA Current
  • Flexible Pulse Sequencing and Timing Control
  • Clocking Via External Clock or Internal Oscillator
  • FIFO With 128-Sample Depth:
    • Programmable Partitioning Across Phases
  • Pin-Selectable I2C, SPI Interface
  • Operating Temperature Range: –20°C to +70°C
  • 2.6-mm × 2.1-mm, 0.4-mm Pitch DSBGA Package
  • Supplies:
    • Tx: 3 V to 5.25 V
    • Rx: 1.8 V to 1.9 V (LDO Bypass),
      2.0 V to 3.6 V (LDO Enabled)
    • IO: 1.7 V to Rx_SUP
  • Accurate, Continuous Heart-Rate Monitoring:
    • Up to 100-dB Dynamic Range for Accurate Heart-Rate Detection
    • Low Current for Continuous Operation on a Wearable Device With a Typical Value:
      • 30 µA for an LED, 25 µA for the Receiver
  • Transmitter:
    • 4 LEDs in Common Anode Configurations
    • 8-Bit Programmable LED Current to 200 mA
    • Mode to Fire Two LEDs in Parallel
    • Programmable LED On-Time
    • Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multiwavelength HRM
    • Average Current of 30 µA Adequate for a Typical Heart-Rate Monitoring Scenario:
      • 20-mA Setting, 60-µs Pulse Duration,
        25-Hz Sampling Rate
  • Receiver:
    • Supports 3 Time-Multiplexed PD Inputs
    • 24-Bit Representation of Current Input From PD in Two’s-Complement Format
    • Individual DC Offset Subtraction DAC
      (Up to ±127-µA Range) at TIA Input for Each LED, Ambient
    • Digital Ambient Subtraction at ADC Output
    • Transimpedance Gain: 10 kΩ to 2 MΩ
    • Noise Filtering With Programmable Bandwidth
    • Receiver Operates at Approximately 1-µA/Hz Sampling Rate (Example, 25 µA at 25 Hz)
    • Hardware Power-Down Mode: Approximately 0-µA Current
  • Flexible Pulse Sequencing and Timing Control
  • Clocking Via External Clock or Internal Oscillator
  • FIFO With 128-Sample Depth:
    • Programmable Partitioning Across Phases
  • Pin-Selectable I2C, SPI Interface
  • Operating Temperature Range: –20°C to +70°C
  • 2.6-mm × 2.1-mm, 0.4-mm Pitch DSBGA Package
  • Supplies:
    • Tx: 3 V to 5.25 V
    • Rx: 1.8 V to 1.9 V (LDO Bypass),
      2.0 V to 3.6 V (LDO Enabled)
    • IO: 1.7 V to Rx_SUP

TheAFE4410is an analog front-end for optical biosensing applications, such as heart rate monitoring (HRM). The device supports a maximum of four switching light-emitting diodes (LEDs) and a maximum of three photodiodes (PDs). The electrical current from the photodiode is converted into voltage by the transimpedance amplifier (TIA) and digitized using an analog-to-digital converter (ADC). The ADC code is stored in a 128-sample first-in, first-out block (FIFO) with programmable depth. The FIFO can be read out using either an I2C interface or a serial peripheral interface (SPI). The AFE also has a fully integrated LED driver with 8-bit current control. The device has high dynamic range transmit-and-receive circuitry offering a dynamic range of up to 100 dB that enables accurate heart ratesensing. The AFE achieves extremely low current levels by operating an ultralow power (ULP) mode set by using the ENABLE_ULP register bit.


TheAFE4410is an analog front-end for optical biosensing applications, such as heart rate monitoring (HRM). The device supports a maximum of four switching light-emitting diodes (LEDs) and a maximum of three photodiodes (PDs). The electrical current from the photodiode is converted into voltage by the transimpedance amplifier (TIA) and digitized using an analog-to-digital converter (ADC). The ADC code is stored in a 128-sample first-in, first-out block (FIFO) with programmable depth. The FIFO can be read out using either an I2C interface or a serial peripheral interface (SPI). The AFE also has a fully integrated LED driver with 8-bit current control. The device has high dynamic range transmit-and-receive circuitry offering a dynamic range of up to 100 dB that enables accurate heart ratesensing. The AFE achieves extremely low current levels by operating an ultralow power (ULP) mode set by using the ENABLE_ULP register bit.


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관심 가지실만한 유사 제품

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
AFE44I30 활성 FIFO 및 I2C를 지원하는 웨어러블 광학 바이오센싱용 초저전력 통합 AFE(아날로그 프론트 엔드) Higher SNR, 6 LEDs, 4 PDs, and improved automatic ambient and LED cancellation.
AFE44S30 활성 FIFO 및 SPI를 지원하는 웨어러블 광학 바이오센싱용 초저전력 통합 AFE(아날로그 프론트 엔드) Higher SNR, 8 LEDs, 4 PDs, and improved automatic ambient and LED cancellation.

기술 자료

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2개 모두 보기
유형 직함 날짜
* Data sheet AFE4410 Ultra-Small, Integrated AFE With FIFO for Wearable, Continuous Optical Heart-Rate Monitoring and Biosensing datasheet (Rev. B) PDF | HTML 2019/07/31
Technical article Optical heart-rate sensors for biometric wearables PDF | HTML 2018/05/03

설계 및 개발

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평가 보드

AFE4403EVM — 심박수 모니터 및 펄스 옥시미터를 위한 AFE4403 통합 AFE 평가 모듈

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 (...)

사용 설명서: PDF
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평가 보드

AFE4410EVM — 웨어러블 광학 심박수 모니터링을 위한 FIFO가 포함된 AFE4410 통합 AFE 평가 모듈

The AFE4410 is an analog front end (AFE) for optical biosensing applications, such as heart-rate monitoring (HRM) and saturation of peripheral capillary oxygen (SpO2). The device supports four switching light-emitting diodes (LEDs) and three photodiodes. The current from the photodiode is converted (...)

평가 보드

AFE4490SPO2EVM — 펄스 옥시미터를 위한 AFE4490 통합 아날로그 프론트 엔드(AFE) 평가 모듈

The AFE44x0SPO2EVM is intended for evaluating AFE4400 and AFE4490 devices. The family of devices are fully integrated AFE ideally suited for Pulse Oximeter applications and consist of low noise receive channel, the LED transmit section and diagnostics for sensor and LED fault detection. The (...)

사용 설명서: PDF
TI.com에서 구매 불가
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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 (...)
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  • 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

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