给出了一种特别适用于便携机的具有50Hz隐波,电极脱落报警和起搏尖峰抑制的多功能心电信号前置放大器。该放大器仅使用了三片8脚IC芯片,整个放大器的耗电小于1.4mA/+5v。
In this paper,an ECG pre-amplifier portable monitor is given .which has many functions,ie, 50 Hz notch,lead-off alarm and pacer pulse inhibition. The amplifier only consists of 3 chips of 8 pin ICs,and con-sumes current less than 1. 4mA.