Oscilloscope memory depth: when bigger is not always better

Oscilloscope memory depth: when bigger is not always better: via @ee_times

Oscilloscope memory depth is an often misunderstood concept. In fact, many designers don’t even know how much memory their scope has. This article discusses what oscilloscope memory is, why it is important and the benefits and trade-offs of memory in different oscilloscope architectures. In the end, the truth is that all memory is created equally. How much memory does the digital oscilloscope on your bench have? Not sure? Don’t feel bad; most people don’t know. But when it comes to oscilloscope memory depth, bigger is always better, right? As with many things, the answer isn’t as straight forward as it may seem. Let’s start with what oscilloscope acquisition memory is, and why it is important. In an oscilloscope’s simplest form, they are made up of a front end for acquiring the analog signal; that signal is then passed on to an analog to digital converter where the signal ...

Full article: http://www.eetimes.com/design/test-and-measurement/423768...