![]() ![]() The first logic analyzer appeared in 1967 as HP engineer Gary Gordon’s personal “bench project.” Just six years earlier, Gary became a company hero as an intern in the oscilloscope lab by solving their digital sampling scopes drifting problem when the time base changed. After triggering on a complicated sequence of digital events, a logic analyzer can copy large amounts of digital data from the SUT (system under test.) Advanced logic analyzers behave like software debuggers that trace computer programs' flow. To better understand how the two instruments address their respective applications, let’s compare their individual capabilities. There are similarities and differences between oscilloscopes and logic analyzers. These instruments have steadily increased, both in their acquisition rates and channel counts, keeping pace with advancing digital technology. Logic analyzers - with their multiple inputs - solve these problems. ![]() If you are using new devices, you’ll soon discover that debugging microprocessor-based designs requires more inputs than oscilloscopes can offer. Logic analyzers simultaneously measure numerous digital signals with challenging trigger requirements. A logic analyzer is an indispensable tool if you design and troubleshoot digital circuits. These include digital hardware debugging, design verification, and embedded software debugging. A logic analyzer - like so many electronic test and measurement tools - provides a solution to a particular class of problems. ![]()
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