NI PXI/PCI-5114 Specifications
8-Bit 250 MS/s Digitizer
Unless otherwise noted, the following conditions were used for each
specification:
• All filter settings
• All impedance selections
• Sample clock set to 250 MS/s
Typical values are representative of an average unit operating at room
temperature. Specifications are subject to change without notice. For the
most recent NI 5114 specifications, visit
To access the NI 5114 documentation, including the NI High-Speed
Digitizers Getting Started Guide, which contains functional descriptions of
the NI 5114 signals, navigate to Start»Programs»National Instruments»
NI-SCOPE»Documentation.
Hot Surface If the NI 5114 has been in use, it may exceed safe handling temperatures and
cause burns. Allow the NI 5114 to cool before removing it from the PXI chassis.
Contents
ni.com/manuals.
Vertical.................................................................................................... 2
Analog Input (Channel 0 and Channel 1) ........................................ 2
Horizontal................................................................................................ 6
Sample Clock...................................................................................6
Phase-Locked Loop (PLL) Reference Clock...................................7
CLK IN (Sample Clock and Reference Clock Input,
Front Panel Connector) ................................................................. 8
Trigger..................................................................................................... 8
Reference (Stop) Trigger ................................................................. 8
TRIG (External Trigger, Front Panel Connector)............................ 10
PFI 0 and PFI 1 (Programmable Function Interface,
AUX Front Panel Connectors) ............................................................. 10
TClk Specifications................................................................................. 12
Waveform Specifications........................................................................ 13
Calibration............................................................................................... 14
Power .......................................................................................................14
Software...................................................................................................15
Environment ............................................................................................16
NI PXI-5114 .....................................................................................16
NI PCI-5114 .....................................................................................17
Safety, Electromagnetic Compatibility, and CE Compliance .................18
Physical....................................................................................................19
Where to Go for Support .........................................................................20
Vertical
Analog Input (Channel 0 and Channel 1)
Specification Val ue Comments
Number of
Channels
Connector BNC —
Impedance and Coupling
Input
Impedance
Input Coupling AC, DC, GND AC coupling
Two (simultaneously sampled) —
50 Ω ±1.5%
1 MΩ ±1% in parallel with a typical capacitance of 26 pF
Software
selectable.
available on
1 MΩ only.
NI PXI/PCI-5114 Specifications 2 ni.com
Specification Val ue Comments
Voltage Levels
Full Scale (FS)
Input Range and
Programmable
Vertical Offset
Maximum Input
Overload
Accuracy
50 Ω 1 MΩ —
Range
(V
pk-pk
Vertical Offset
Range (V)
)
Range
(V
pk-pk
Vertical Offset
)
Range (V)
0.04 ±0.8 0.04 ±0.8
0.1 ±0.8 0.1 ±0.8
0.2 ±0.8 0.2 ±0.8
0.4 ±0.8 0.4 ±0.8
1 ±6.5 1.0 ±8.0
2 ±6.0 2.0 ±8.0
4 ±5.0 4.0 ±8.0
10 ±30
10 ±2.0
20 ±25
40 ±15
50 Ω 1 MΩ —
7 V
with |Peaks| ≤ 10 V |Peaks| ≤ 35 V
rms
Resolution 8 bits —
DC Accuracy
(Programmable
Vertical
Offset = 0 V)
Programmable
Vertical Offset
Accuracy
NI PXI-5114:
±(1.5% of Input + 0.3% of FS + 200 μV)
NI PCI-5114:
Within ±5 °C of
self-calibration
temperature.
±(1.5% of Input + 0.3% of FS + 280 μV)
± 2% of offset setting Within ±5 °C of
self-calibration
temperature.
DC Drift ±(0.03% of Input + 0.06% of FS + 40 μV) per °C —
Crosstalk,
Typical
≤ –60 dB at 10 MHz
≤ –45 dB at 100 MHz
CH 0 to/from
CH 1, External
Trigger to CH 0
or CH 1.
© National Instruments Corporation 3 NI PXI/PCI-5114 Specifications
Specification Val ue Comments
Bandwidth and Transient Response
Bandwidth
(–3 dB)
Bandwidth
Limit Filter
AC Coupling*
Cutoff (–3 dB),
Typical
Passband
Flatness
1
0
–1
–2
–3
–4
–5
–6
–7
–8
Amplitude (dB relative to 50 kHz)
–9
–10
1 M 100 M10 M 200 M
Range
(V
) Bandwidth
pk-pk
All ranges
125 MHz 2.8 ns
except 0.04
0.04 100 MHz 3.5 ns
20 MHz Noise Filter
12 Hz
±1 dB up to 50 MHz
Noise Filter
Frequency (Hz)
Rise/Fall Time,
Typical
Full Bandwidth
—
—
*AC coupling
available on
1 MΩ only.
Referenced to
50 kHz.
Bandwidth
limit filter off.
Figure 1. NI 5114 Frequency Response (Typical)
NI PXI/PCI-5114 Specifications 4 ni.com
Specification Val ue Comments
Spectral Characteristics
Spurious Free
Dynamic Range
with Harmonics
(SFDR), Typical
Total Harmonic
Distortion
(THD), Typical
Effective
Number of Bits
(ENOB),
Calculated*
Range (V
All ranges except 0.04 0.04
–58 dBc –58 dBc
–58 dBc –58 dBc
7.2 6.2
) 10 MHz,
pk-pk
–1 dBFS
input signal.
Includes the
nd
2
the 5
harmonics.
Measured
from DC to
125 MHz.
20 MHz
bandwidth
limit filter off.
Signal to Noise
and Distortion
(SINAD),
44 dB 38 dB
Typical
RMS Noise Range
(V
pk-pk
All ranges
except 0.04
)
20 MHz
Filter On
20 MHz
Filter Off
0.28% FS 0.28% FS
50 Ω
terminator
connected
to input.
0.04 0.28% FS 0.45% FS
*
ENOB = log2(sinad) – ½log2(1.5) – log2(A/V)
where
sinad = the linear representation of SINAD
A = amplitude of the supplied sine wave during the test
V = (peak) full-scale range of the waveform recorder input
Refer to 1057-1994 IEEE Standard for Digitizing Waveform Recorders for information on equation derivation.
through
th
© National Instruments Corporation 5 NI PXI/PCI-5114 Specifications
Horizontal
Sample Clock
Specification Val ue Comments
Sources Internal, Onboard Clock (internal VCXO)*
External, CLK IN (front panel SMB connector)
Onboard Clock (Internal VCXO)
Sample Rate
Range
Timebase
Frequency
Timebase
Accuracy
Real-Time Sampling
(Single Shot)
3.815 kS/s to 250MS/s* 250 MS/s to 5 GS/s in
250 MHz When not using
Not Phase-Locked to
Reference Clock
±25 ppm Equal to the Reference
Random Interleaved
Sampling (RIS)
increments of 250 MS/s
Phase-Locked to
Reference Clock
Clock accuracy
* Internal Sample
Clock is locked to the
Reference Clock or
derived from the
onboard VCXO.
* Divide by n
decimation used
for all rates less than
250 MS/s. For more
information about
Sample Clock and
decimation, refer to
the NI High-Speed
Digitizers Help.
External Sample
Clock.
—
Sample Clock
Delay Range
Sample Clock
Delay Resolution
NI PXI/PCI-5114 Specifications 6 ni.com
±1 Sample Clock period —
≤ 20 ps —
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