Datasheet

PicoScope 4444 differential oscilloscope
When the trace length is set to be shorter than the scope’s memory, the PicoScope 4444 will
automatically configure the memory as a circular buffer, recording recent waveforms for review. For
example, if 1 million samples are
captured, up to 250 waveforms will
be stored in oscilloscope memory.
Tools such as mask limit testing can
then be used to scan through each
waveform to identify anomalies.
Deep memory
The PicoScope 4444 oscilloscope offers a large capture memory of 256 MS, allowing it to sustain high sampling rates across long timebases. Running at 12-bit resolution, it can sample at 400 MS/s all the
way down to 50 ms/div giving a 500 ms total capture time.
Powerful tools are included to allow you to manage and examine all of this data. As well as functions such as mask limit testing and color persistence mode, the PicoScope 6 software enables you to zoom
into your waveform by several million times. The Zoom Overview window allows you to easily control the size and location of the zoom area.
The image below shows how deep memory allows us to zoom in on an individual color burst in an NTSC signal, while preserving the detail of the signal.
Up to 10 000 waveforms can be stored
in the segmented waveform buffer. The
Buffer Overview window then allows you
to rewind and review the history of your
waveform.
You can also use it to view mask limit
test failures, making it far easier to spot
infrequent glitches.
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Zoom Overview window
Zoomed area