Monitoring the Heartbeat of ECG Technology
An electrocardiogram (ECG) is a recording of the electrical activity on the body surface generated by the heart. The front end of an ECG must be able to deal with extremely weak signals ranging from 0.5mV to 5.0mV. This presents a designer with challenges of selecting precise and sensitive frontend components and efficient processing and display solutions. National Semiconductor addresses these concerns with their Precision Front-end Amplifiers and Data Converters. They also have a wealth of supporting components for the DC sections, Audio, LED Drivers and precision clocking sections of an ECG Design. Freescale Semiconductor also offers solutions in terms of low-cost/power yet highly integrated 8-32 bit Microcontrollers. These microcontrollers integrate features such as USB, GP I/O, LCD Controllers and Ultra-low power modes for Battery powered portable solutions.
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