Acqiris U5303A, Руководство пользователя

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1.3 Sampling and Data Acquisition
U5303A User's Manual 11
1.3 Sampling and Data Acquisition
The ADC Card acquires waveforms in association with triggers. Each waveform is made of a series of
measured voltage values (sample points) coming from the ADC at a uniform sampling rate.
Sampling rate
The U5303A Acquisition card contains an analog-to-digital conversion (ADC) system that can sample
waveforms, in a real time sampling mode, at the maximum rates shown in the table below. The
maximum sampling rate shown above is achieved by combining the two channels.
Model Option
Max. Sampling
Rate Available
Channels
Resolution Readout Modes
U5303A
-SR0 0.5 GS/s 2
12 bits
Single or multi-record
(up to 131'072 records)
or continuous (depends on firmware
options)
-SR0 and
-INT
1 GS/s 1
-SR1 1 GS/s 2
-SR1 and
-INT
2 GS/s 1
-SR2 1.6 GS/s 2
-SR2 and
-INT
3.2 GS/s 1
-SR3 2 GS/s 2
-SR3 and
-INT
4 GS/s 1
Table 1.4 - Acquisition sampling rate and resolution per channel.
The External Clock can be used to vary the sampling rate of the ADC card, see External clock and
reference (page 62) .
Combining channels (Interleaving -INT option)
When ordered with -INT option, the U5303A ADC card supports the capability of combining the
converters (and their memories) from two channels to analyze a single input channel. With this feature
the maximum sampling rate and the maximum amount of acquisition memory are doubled.