TI ADS1293蓝牙无线心脏监测参考设计

TI公司的ADS1293集成了手持低功耗医疗,运动和健身心电图(ECG)所需要的所有功能,有三个工作高达25.6kbps的高分辨率通路,每路功耗0.3mW,输入参考噪音7uVpp(40Hz带宽),每个通路可单独编程,以适应特别取样速率和带宽,主要用在手持1/2/3/5/6/7/8/12线ECG,病人生命特征监测如Holter,远程医疗等,自动体外心脏去颤器(AED)以及运动和健身(心速和ECG).本文介绍了ADS1293主要特性,框图, 3/5/8或12线ECG应用框图,以及带低功率蓝牙的无线心脏监测器主要特性,框图,电路图,材料清单和PCB元件布局图.
The ADS1293 incorporates all features commonly required in portable, low-power medical, sports, and fitness electrocardiogram (ECG) applications. With high levels of integration and exceptional performance, the ADS1293 enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost.
The ADS1293 features three high-resolution channels capable of operating up to 25.6ksps. Each channel can be independently programmed for a specific sample rate and bandwidth allowing users to optimize the configuration for performance and power. All input pins incorporate an EMI filter and can be routed to any channel via a flexible routing switch. Flexible routing also allows independent lead-off detection, right leg drive, and Wilson/Goldberger reference terminal generation without the need to reconnect leads externally. A fourth channel allows external analog pace detection for applications that do not utilize digital pace detection.
The ADS1293 incorporates a self-diagnostics alarm system to detect when the system is out of the operating conditions range. Such events are reported to error flags. The overall status of the error flags is available as a signal on a dedicated ALARMB pin.
The device is packaged in a 5-mm × 5-mm × 0.8-mm, 28-pin LLP. Operating temperature ranges from –20℃ to 85℃.
ADS1293主要特性:
3 High Resolution Digital ECG Channels with Simultaneous Pace Output
EMI Hardened Inputs
Low Power: 0.3mW/channel
Input-Referred Noise: 7µVpp (4...