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.
Post processing:
"This class of ECG units will feature auto-calibration and must have configurability and flexibility to accommodate from 3-10 probes."
Beside that a physicain is not looking for a zero reference, he is looking at the integrity, shape, and anomolies in the pulses.
Freescale Semiconductor is a global leader in the design and manufacture of embedded semiconductors for the automotive, consumer, industrial, networking and wireless markets. Freescale became a... Read More
Arrow Electronics is a provider of products, services, and solutions to industrial and commercial users of electronic components and enterprise computing solutions. Arrow serves as a... Read More
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3 comments
write a commentl_matthews Posted Sep 24, 2010
So, What am I missing? Why is a single-ended ADC being used for a process where the input can swing both positve and negative?
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fdunn Posted Oct 3, 2010
Post processing: "This class of ECG units will feature auto-calibration and must have configurability and flexibility to accommodate from 3-10 probes." Beside that a physicain is not looking for a zero reference, he is looking at the integrity, shape, and anomolies in the pulses.
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comunication Posted Oct 7, 2010
block diagram
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