AFE4405 Ultra-Small, Integrated AFE with FIFO for Wearable, Optical Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 8-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: – Support

文件：365.85 Kbytes 頁(yè)數(shù)：10 Pages

TI

德州儀器

AFE4405 Ultra-Small, Integrated AFE with FIFO for Wearable, Optical Heart-Rate Monitoring and Bio-Sensing

文件：682.27 Kbytes 頁(yè)數(shù)：11 Pages

TI

德州儀器

絲?。?strong>AFE4405；Package：DSBGA；AFE4405 Ultra-Small, Integrated AFE with FIFO for Wearable, Optical Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 8-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: – Support

文件：365.85 Kbytes 頁(yè)數(shù)：10 Pages

TI

德州儀器

絲?。?strong>AFE4405；Package：DSBGA；AFE4405 Ultra-Small, Integrated AFE with FIFO for Wearable, Optical Heart-Rate Monitoring and Bio-Sensing

1 Features 1? Transmitter: – Supports Common Anode LED Configuration – Dynamic Range: 100 dB – 8-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: – Support

文件：365.85 Kbytes 頁(yè)數(shù)：10 Pages

TI

德州儀器

適用于可穿戴設(shè)備光學(xué)心率監(jiān)測(cè)和生物傳感且具有 FIFO 的超小型集成式 AFE

AFE4405 是一款面向光學(xué)生物檢測(cè) 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(kāi)關(guān)發(fā)光二極管 (LED) 和最多兩個(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 編碼可存儲(chǔ)到深度可編程的 234 采樣先入先出 (FIFO) 存儲(chǔ)塊。FIFO 深度可進(jìn)行適當(dāng)分區(qū)，以滿(mǎn)足某些相位必須存儲(chǔ)的需求。FIFO 的內(nèi)容可使用 I2C 或 SPI 接口讀出。這款 AFE 還配有帶 8 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 ? 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? 以 24 位二進(jìn)制補(bǔ)碼格式表示光電二極管的電流輸入\n? ADC 輸出端的數(shù)字環(huán)境減法\n? 動(dòng)態(tài)范圍：100dB\n? 脈沖頻率：5SPS 至 1000SPS\n? 靈活的時(shí)鐘選項(xiàng)： \n? 內(nèi)部時(shí)鐘：4MHz 振蕩器\n? 采樣深度為 240 的 FIFO： \n? I2C、SPI 接口：可通過(guò)引腳進(jìn)行選擇\n? 2.6mm × 2.1mm DSBGA 封裝，0.4mm 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

AFE4405 Ultra-Small, Integrated AFE with FIFO for Wearable, Optical Heart-Rate Monitoring and Bio-Sensing

文件：682.27 Kbytes 頁(yè)數(shù)：11 Pages

TI

德州儀器

Package：30-XFBGA，DSBGA；包裝：托盤(pán) 類(lèi)別：集成電路（IC） 模擬前端（AFE） 描述：IC AFE 2 CHAN 24BIT 30DSBGA

TI

德州儀器