Texas Instruments ADS1298模拟前端
德州仪器 ADS1298生物电势测量用模拟前端（AFE）器件带有八个低噪音可编程增益放大器（PGA）和八个高精度模数转换器（ADC）。这些TI带内置PGA的24位ADC包含了医疗心电图和脑电图应用中经常需要的所有特性。TI ADS1298 AFE器件每通道有一个灵活的输入复用器，可独立连接内部生成的信号，用于试验、温度和电极脱落检测。多个ADS1298器件可以以菊花链组态在高通道数系统中进行级联。
特性
- Eight low-moise PGAs and eight high-resolution ADCs
- 0.75mW/channel low power
- 4µVPP (150Hz BW, G = 6) input-referred noise
- 200pA input bias current
- 250SPS to 32kSPS data rate
- –115dB CMRR
- 1, 2, 3, 4, 6, 8, or 12 programmable gain
- Supports AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 standards
- Unipolar or bipolar supplies:
- AVDD = 2.7V to 5.25V, DVDD = 1.65V to 3.6V
- Built-in right leg drive amplifier, lead-off detection, WCT, PACE detection, test signals
应用
- Medical instrumentation (ECG, EMG and EEG)
- Patient monitoring
- Holter, event, stress, and vital signs including ECG, AED, telemedicine bispectral index (BIS), evoked audio potential (EAP), sleep study monitor
- High-precision, simultaneous, multichannel signal acquisition
Block Diagram
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发布日期: 2011-09-02
| 更新日期: 2022-03-11