AFE4404 Ultra-Small, Integrated AFE for Wearable, Optical, Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 6-Bit Programmable LED Current to 50 mA (Extendable to 100 mA) – Programmable LED On-Time – Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multi-Wavelength HRM ? Receiver: – 24-Bit

文件：847.62 Kbytes 頁(yè)數(shù)：85 Pages

TI

德州儀器

Ultra-Small, Integrated AFE

文件：1.2488 Mbytes 頁(yè)數(shù)：83 Pages

TI

德州儀器

絲?。?strong>AFE4404；Package：DSBGA；AFE4404 Ultra-Small, Integrated AFE for Wearable, Optical, Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 6-Bit Programmable LED Current to 50 mA (Extendable to 100 mA) – Programmable LED On-Time – Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multi-Wavelength HRM ? Receiver: – 24-Bit

文件：847.62 Kbytes 頁(yè)數(shù)：85 Pages

TI

德州儀器

絲?。?strong>AFE4404；Package：DSBGA；AFE4404 Ultra-Small, Integrated AFE for Wearable, Optical, Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 6-Bit Programmable LED Current to 50 mA (Extendable to 100 mA) – Programmable LED On-Time – Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multi-Wavelength HRM ? Receiver: – 24-Bit

文件：847.62 Kbytes 頁(yè)數(shù)：85 Pages

TI

德州儀器

絲?。?strong>AFE4404；Package：DSBGA；AFE4404 Ultra-Small, Integrated AFE for Wearable, Optical, Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 6-Bit Programmable LED Current to 50 mA (Extendable to 100 mA) – Programmable LED On-Time – Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multi-Wavelength HRM ? Receiver: – 24-Bit

文件：847.62 Kbytes 頁(yè)數(shù)：85 Pages

TI

德州儀器

絲?。?strong>AFE4404；Package：DSBGA；AFE4404 Ultra-Small, Integrated AFE for Wearable, Optical, Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 6-Bit Programmable LED Current to 50 mA (Extendable to 100 mA) – Programmable LED On-Time – Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multi-Wavelength HRM ? Receiver: – 24-Bit

文件：847.62 Kbytes 頁(yè)數(shù)：85 Pages

TI

德州儀器

適用于可穿戴設(shè)備、光學(xué)心率監(jiān)測(cè)和生物傳感的超小型集成式 AFE

AFE4404 是一款面向光生物傳感 應(yīng)用的模擬前端 (AFE)，例如心率監(jiān)測(cè) (HRM) 和血氧飽和度 (SpO2) 測(cè)量。該器件支持三個(gè)開關(guān)發(fā)光二極管 (LED) 和一個(gè)光電二極管。光電二極管的電流通過(guò)互阻抗放大器 (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 代碼可使用 I2C 接口讀出。AFE 還配有帶 6 位電流控制的全集成 LED 驅(qū)動(dòng)器。該器件具有寬動(dòng)態(tài)范圍的發(fā)送和接收電路，有助于感測(cè)超小信號(hào)電平。 ? 發(fā)送器： \n? 動(dòng)態(tài)范圍：100dB\n? 可編程 LED 接通時(shí)間\n? 接收器： \n? TIA 輸入端的獨(dú)立直流偏移減法 DAC，用于每個(gè) LED 和環(huán)境相位\n? 可編程互阻抗增益：10kΩ 至 2MΩ\n? 動(dòng)態(tài)節(jié)能模式，可使電流降至 200μA 以下\n? 脈沖頻率：10SPS 至 1000SPS\n? 靈活的時(shí)鐘選項(xiàng)： \n? 內(nèi)部時(shí)鐘：4MHz 振蕩器\n? I2C 接口\n? 2.6mm × 1.6mm DSBGA 封裝，0.5mm 間距\n? 電源：Rx：2V 至 3.6V；Tx：3V 至 5.25V；IO：1.8V 至 3.6V;

TI

德州儀器

AFE4404 Ultra-Small, Integrated AFE for Wearable, Optical, Heart-Rate Monitoring and Bio-Sensing

文件：1.10377 Mbytes 頁(yè)數(shù)：80 Pages

TI

德州儀器

Ultra-Small, Integrated AFE

文件：1.2488 Mbytes 頁(yè)數(shù)：83 Pages

TI

德州儀器

Ultra-Small, Integrated AFE

文件：1.2488 Mbytes 頁(yè)數(shù)：83 Pages

TI

德州儀器