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Oscilloscope Deep Acquisition Memory and Why You Need It

Application Notes

Oscilloscope vendors specify memory depth as a primary attribute for specific oscilloscope models. This value equals the number of samples that are stored with each acquisition. Memory depth is typically specified as a per-channel value. Some oscilloscopes have interleaved memory architectures. For example, memory may have a specific value when all channels are turned on and double the value when only half of the channels are enabled.

 

In addition to standard acquisition memory specified, most oscilloscopes have additional memory loaded on the acquisition board with this additional depth licensed separately. While acquisition memory depth is often used as a primary purchase consideration, the associated benefits and tradeoffs of deep memory require additional thought to fully appreciate. Here are three areas where deep memory adds value.

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