AFE4960P
- Supports ECG and respiration impedance measurement; configurable as 2-channel ECG or 1-channel ECG + 1-channel respiration
- Can be used in IEC 60601-2-47:2012/(R)2016 and IEC 60601-2-27:2011(R)2016 compliant systems
- 222 µA/channel while operating as 2-channel ECG
- Integrated Pace pulse detection on 1 channel
- Supports a 3-lead ECG, extendable to 5 leads or higher by operating two or more AFEs in parallel
- PPG signal chain for SpO2, Heart rate and PTT
- ECG signal chain:
- Single channel ECG acquisition up to 2.048 kHz
- 2 channel ECG acquisition up to 1.36 kHz/channel
- RLD output to set body bias through third electrode
- Programmable INA gain from approximately 2 to 12
- >1 GΩ input impedance, CMRR > 100 dB
- Input noise (0.5-150 Hz): 13 µVpp at INA gain of 3; 5 µVpp at INA gain of 12
- Integrated 370 Hz anti-aliasing low pass filter
- Mode for continuous lead on/off detection
- Mode for lead impedance measurement
- Bio-Z signal chain:
- Measurement of Bio-impedance over excitation frequency from 30 kHz to 100 kHz
- Sine wave or square wave excitation
- Respiration impedance measurement: 45 mΩ-pp noise on a baseline impedance of 2 kΩ
- Dual channel ECG channel:
- Bio-Z receiver configurable as a 2nd ECG channel
- PPG Signal Chain
- Supports acquisition of up to 24 PPG signals
- Flexible allocation of 4 LED, 4 PD in each phase
- 8-Bit LED Current control up to 250 mA
- Low noise current DAC at input to cancel DC
- Trans-impedance Gain: 3.7 kΩ to 1 MΩ
- Filter to reduce sensor’s optical noise bandwidth
- External clock and internal oscillator modes
- FIFO with 128-sample Depth, 24-bit word
- SPITM, I2C interfaces: Selectable by pin
- 2.6-mm × 2.6-mm DSBGA, 0.4-mm Pitch
- Supplies: Rx:1.7-1.9 V, IO:1.7-1.9 V , Tx: 3.0-5.5 V
The AFE4960P supports synchronized signal acquisition of ECG, PPG and bio-impedance signals. A PPG signal chain comprises of a current driver for LEDs and a receiver that senses the signal from PDs. The AFE can be configured as either a 2-channel ECG receiver or as a 1-channel ECG receiver and a Respiration impedance channel. The AFE signal chains can interface in a flexible manner to up to 4 electrodes. The AFE has AC and DC Lead biasing and lead on/off detection. Pacemaker pulse detection is supported on one channel. All the signal chain outputs are converted by a single ADC in well-defined time slots and stored as 24-bit words in a 128-sample FIFO which can be read out using a SPI or an I2C interface. The AFE4960P can be used to realize a 3-lead ECG system along with SpO2.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | AFE4960 Two-Channel ECG, Respiration and Pace Pulse Detection Analog Front End (AFE) for Clinical Wearables datasheet | PDF | HTML | 2022年 5月 13日 |
Product overview | ECG and Cuffless Blood Pressure Monitoring With Integrated AFE | PDF | HTML | 2023年 10月 30日 | |
Application brief | Wearable EEG (Electroencephalography) (Rev. B) | PDF | HTML | 2023年 10月 30日 | |
Application brief | Remote Patient Monitoring | PDF | HTML | 2022年 11月 30日 | |
Application brief | ECG Signal Acquisition on Wearables | PDF | HTML | 2022年 11月 15日 | |
Application brief | Measuring Oxygen Saturation (SpO2) on Wearables | PDF | HTML | 2022年 11月 14日 | |
Application brief | Optical Heart Rate Monitoring (OHRM) on Wearables | PDF | HTML | 2022年 11月 14日 | |
Application brief | Cuffless Blood Pressure Monitoring on Wearables | PDF | HTML | 2022年 11月 9日 | |
Certificate | AFE4960PEVM EU RoHS Declaration of Conformity (DoC) | 2022年 7月 29日 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
AFE4960PEVM — 適用於具呼吸及心率偵測的雙通道 ECG 和 PPG 的 AFE 的 AFE4960P 評估模組
AFE4960P 評估模組 (EVM) 是可用來評估 AFE4960P 生物感測類比前端 (AFE) 的平台,其支援心電圖 (ECG)、和生物阻抗及光體積變化描記圖 (PPG) 訊號的同步訊號擷取。
AFE4960P 可以配置為雙通道 ECG 接收器,或做為單通道 ECG 接收器和呼吸阻抗通道和 PPG 通道。AFE 訊號鏈可彈性地介接至高達四個電極。右腳驅動 (RLD) 放大器輸出可用來設定本體偏差。AFE 具有用於偵測引線開/關的 DC 引線偏置,以及用於測量引線阻抗的 AC 引線偏置。
一個通道支援心律調節器脈搏偵測。兩個通道輸出的可編程抽取濾波器可降低輸出資料率。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
DSBGA (YBG) | 36 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。