In contrast to an analog
oscilloscope, a digital oscilloscope uses an analog-to-digital converter (ADC)
to convert the measured voltage into digital information.
It acquires
the waveform as a series of samples, and stores these samples until it
accumulates enough samples to describe a waveform. The digital oscilloscope then
re-assembles the waveform for display on the screen.
Digital
oscilloscopes can be classified into digital storage oscilloscopes (DSOs),
digital phosphor oscilloscopes (DPOs), and sampling oscilloscopes. The digital
approach means that the oscilloscope can display any frequency within its range
with stability, brightness, and clarity.
For repetitive signals,
single-shot and transient events, such as pulses and steps, the bandwidth can be
limited by the oscilloscope’s sample rate.
If you need assistance
selecting or configuring an oscilloscope for your test & measurement
application please contact us at toll free 1.866.363.6634 or email us at
sales@calright.com.
