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.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | AFE4403 Ultra-Small, Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters datasheet (Rev. C) | PDF | HTML | 2020/11/18 |
| White paper | Evolving Semiconductor Technologies for Modern Telehealth Applications | 2020/10/26 | ||
| Technical article | Designing compact, efficient and high performing multiparameter patient monitors | PDF | HTML | 2019/06/25 | |
| Application note | How to Design an SpO2 and OHRM System Using AFE4403 | 2015/03/02 | ||
| EVM User's guide | AFE4403EVM User's Guide (Rev. B) | 2014/07/21 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
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 (...)
SLAC677 — AFE4403EVM Firmware Source v2.3
지원되는 제품 및 하드웨어
제품
바이오센싱 AFE
하드웨어 개발
평가 보드
SLAC672 — AFE4403EVM GUI v2.2
지원되는 제품 및 하드웨어
제품
바이오센싱 AFE
하드웨어 개발
평가 보드
PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®
TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
TIDA-00311 — 초소형 펄스 옥시미터 레퍼런스 디자인
TIDA-00301 — 초소형 광학 심박수 레퍼런스 디자인
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| DSBGA (YZP) | 36 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.