Acqiris U5310A User Manual page 25

Decimation Sampling
factor
1
2
4
8
16
32 312.5 MS/s
64
1
Analog Front-end Bandwidth.
2
For these configurations, user can use additional external low pass filter: filtering is recommended with user specific external
low pass filter in front of the ADC card.
Table 2.3 - Supported decimated sampling rates and configurations in a single interleaved channel mode.
Data readout when using FetchAccumulatedWaveformInt32
The data returned by the driver is unsigned. Since the API is limited to signed data type (for AVG fetch
Int32), a conversion should be applied to interpret data returned through API as unsigned int (32-bit) as
in provided examples.
IVI-C
To convert from raw value to Volts:
ViReal64 valueInVolts = static_cast<ViUInt32>(dataArray[firstValidPoint[currentRecord] + cur-
rentPoint]) * scaleFactor + scaleOffset;
IVI.NET
To convert from raw value to Volts:
IAqMD3AccumulatedWaveformCollection<Int32> waveformCollection = null ;
waveformCollection = instrument.Channels[«Channel1»].Measurement.FetchAccumulatedWaveform(0,
nbrRecords, 0, nbrSamples, waveformCollection);
foreach (var waveform in waveformCollection)
{
for (int point = 0; point < waveform.ValidPointCount; ++point)
{
}
}
U5310A User's Manual
Low Pass
Filter
(Typical -
Rate
defined at
10%)
1
No filter
10 GS/s
1
No filter
5 GS/s
2.5 GS/s 1 GHz
1.25 GS/s 500 MHz
625 MS/s 250 MHz
180 MHz
156.25
2
180 MHz
MS/s
double sampleInVolts = waveform.GetScaled(point);
Interleaved mode
Maximum
AVG
Maximum AVG
acquisition
acquisition
length
time
[Samples]
655 k 65.4 µs
655 k 130 µs
655 k 261 µs
655 k 523 µs
655 k 1.04 ms
655 k 2.09 ms
655 k 4.18 ms
2.3 Real-time averaging (AVG option)
Maximum AVG
Trigger Delay
Resolution
trigger delay
107.374176 ms
214.748352 ms
429.496704 ms
858.993408 ms
1717.986816 ms
3435.973632 ms
6871.947264 ms
6.4 ns
12.8 ns
25.6 ns
51.2 ns
102.4 ns
204.8 ns
409.6 ns
25