National Instruments NI PXI-PCI-5124 User Manual

NI PXI/PCI-5124 Specifications

12-Bit 200 MS/s Digitizer

This document lists the specifications for the NI PXI/PCI-5124 (NI 5124) high-speed digitizer. Unless otherwise noted, these specifications are valid for the following conditions:

• All filter settings

• All impedance selections

• Sample clock set to 200 MS/s using onboard clock

Typical values are representative of an average unit operating at room temperature. Specifications are subject to change without notice. For the most recent NI 5124 specifications, visit

To access the NI 5124 documentation, including the NI High-Speed Digitizers Getting Started Guide, which contains functional descriptions of the NI 5124 signals, navigate to Start»All Programs»National Instruments»NI-SCOPE»Documentation.

Hot Surface If the NI 5124 has been in use, it may exceed safe handling temperatures and

cause burns. Allow the NI 5124 to cool before removing it from the PXI chassis or PC. Refer to the Environment section for operating temperatures of this device.

ni.com/manuals.

Vertical.................................................................................................... 2

Analog Input (Channel 0 and Channel 1) ........................................ 2

Horizontal................................................................................................ 13

Sample Clock...................................................................................13

Phase-Locked Loop (PLL) Reference Clock...................................16

CLK IN (Sample Clock and Reference Clock Input,

Front Panel Connector) ................................................................. 17

CLK OUT (Sample Clock and Reference Clock Output,

Front Panel Connector) ................................................................. 17

Trigger..................................................................................................... 17

Reference (Stop) Trigger ................................................................. 17

TRIG (External Trigger, Front Panel Connector)............................ 19

PFI 0 and PFI 1 (Programmable Function Interface,

AUX Front Panel Connector) ...............................................................20

TClk Specifications .................................................................................21

Waveform Specifications ........................................................................22

Calibration ...............................................................................................23

Power .......................................................................................................23

Software...................................................................................................24

Environment ............................................................................................25

NI PXI-5124 .....................................................................................25

NI PCI-5124 .....................................................................................26

Safety, Electromagnetic Compatibility, and CE Compliance .................27

Safety................................................................................................27

Electromagnetic Compatibility.........................................................27

CE Compliance.................................................................................27

Environmental Management ............................................................28

Physical....................................................................................................28

Front Panel Connectors ....................................................................28

Dimensions and Weight ...................................................................29

Where to Go for Support .........................................................................31

Vertical

Analog Input (Channel 0 and Channel 1)

Specification Val ue Comments

Number of Channels

Connector BNC —

Impedance and Coupling

Input Impedance 50 Ω ±2.0% 1MΩ ±0.75% in parallel

Input Coupling AC, DC, GND AC coupling

NI PXI/PCI-5124 Specifications 2 ni.com

Two (simultaneously sampled) —

Software with a typical capacitance of 29 pF

selectable

available on

1MΩ only

Specification Val ue Comments

Voltage Levels

Full Scale (FS) Input Range and Programmable Vertical Offset

Range

50 Ω 1MΩ —

Vertical

pk-pk

)

Offset Range

(V)

Range

pk-pk

Vertical Offset

Range (V)

)

0.2 ±0.1 0.2 ±0.1

0.4 ±0.2 0.4 ±0.2

1 ±0.5 1 ±0.5

2 ±1 2 ±1

4 ±2 4 ±2

10 0 10 ±5

20 0

Maximum Input Overload

50 Ω 1MΩ —

with |Peaks| ≤10 V |Peaks| ≤42 V

rms

Accuracy

Resolution 12 bits —

DC Accuracy (Programmable Vertical Offset = 0 V)

Range (V

) NI PXI-5124 NI PCI-5124 Within ±5 °C of

pk-pk

0.2 and 0.4 ±(0.65% of Input + 1.3 mV)

1 and 2 ±(0.65% of Input

+ 1.5 mV)

±(0.65% of Input

+ 1.8 mV)

±(0.65% of Input

+ 2.1 mV)

self-calibration temperature

4, 10, and 20 (1 MΩ only)

Programmable

±0.4% of offset setting Within ±5 °C of Vertical Offset Accuracy

±(0.65% of Input

+ 10.0 mV)

±(0.65% of Input

+ 10.0 mV)

self-calibration temperature

Specification Val ue Comments

DC Drift Range (V

) 50 Ω and 1 MΩ —

pk-pk

0.2, 0.4, 1, and 2 ±(0.057% of Input + 0.006% of FS

4, 10, and 20 (1 MΩ only)

AC Amplitude Accuracy

50 Ω 1MΩ Within ±5 °C of

±0.06 dB

(±0.7%) at 50 kHz

Crosstalk,

≤–85 dB at 10 MHz CH 0 to/from

Typical

Sparkle Code Rate, Typical

<300 ppt* with onboard clock or 200 MHz external clock

<3 ppt

with 150 MHz external clock

0 with 100 MHz external clock

Bandwidth and Transient Response

Bandwidth (–3 dB)

Range (V

All ranges

) 50 Ω 1MΩ Filters off

pk-pk

except 0.2

+100μV) per °C

±(0.057% of Input + 0.006% of FS + 900 µV) per °C

±0.09 dB

(±1.0%) at 50 kHz

150 MHz 145 MHz up to

40 °C

self-calibration temperature

CH 1, External Trigger to CH 0 or CH 1

Results based on 2 × 10

samples

ppt = parts per

trillion (10

135 MHz

above 40 °C

)

0.2 85 MHz 75 MHz

Rise/Fall Time, Typical

Range (V

All ranges

) 50 Ω and 1 MΩ Filters off

pk-pk

2.4 ns

except 0.2

0.2 3.3 ns

Bandwidth Limit Filters

Noise Filter Antialias Filter Only one filter

20 MHz, typical

2-pole Bessel filter

60 MHz, typical

4-pole elliptical filter

can be enabled at any given time. The antialias filter is enabled by default.

NI PXI/PCI-5124 Specifications 4 ni.com

Specification Val ue Comments

AC Coupling Cutoff (–3 dB)

Passband Flatness

–1

–2

–3

–4

–5

–6

–7

Amplitude (dB Relative To 50 kHz)

–8

–9

–10

12 Hz AC coupling

available on 1MΩ only

Filter Settings Range

pk-pk

Filters Off All

ranges except

0.2

) 50 Ω and 1 MΩ

±0.5 dB DC to 20 MHz

±1.0 dB 20 MHz to 50 MHz

±1.7 dB 50 MHz to

Referenced to 50 kHz

100 MHz

0.2 ±0.6 dB DC to 20 MHz

±1.5 dB 20 MHz to 40 MHz

Antialias Filter On

All

ranges

Noise Filter On

Frequency (Hz)

–1.0 dB to +2.0 dB

DC to 55 MHz

Antialias Filter On

Filters

Off

200 M100 M10 M1 M

Figure 1. NI 5124 Frequency Response (Typical)

Specification Val ue Comments

Spectral Characteristics

Spurious-Free Dynamic Range with Harmonics (SFDR) (Physical), Typical

Total Harmonic Distortion (THD), Typical

Range

) 50 Ω 1MΩ

pk-pk

0.2 75 dBc 70 dBc

0.4 75 dBc 70 dBc

1 72 dBc 70 dBc

2 72 dBc 70 dBc

4 65 dBc 67 dBc

10 65 dBc 60 dBc

— 60 dBc

(1 MΩ only)

Range

) 50 Ω 1MΩ

pk-pk

0.2 –74 dBc –68 dBc

0.4 –74 dBc –68 dBc

1 –72 dBc –68 dBc

2 –72 dBc –67 dBc

4 –63 dBc –66 dBc

10 –63 dBc –58 dBc

Filters off or antialias filter on

10 MHz, –1 dBFS input signal

Includes the 2nd through the 5th harmonics

Measured from DC to 100 MHz on NI PXI-5124

Measured from 5 kHz to 100 MHz on NI PCI-5124

Filters off or antialias filter on

10 MHz, –1 dBFS input signal

Includes the

through

the 5 harmonics

— –58 dBc

(1 MΩ only)

NI PXI/PCI-5124 Specifications 6 ni.com

Specification Val ue Comments

Intermodulation Distortion, Typical

Signal-to-Noise Ratio (SNR), Typical

Signal to Noise and Distortion (SINAD), Typical

0.2 V

pk-pk

to 2.0 V

Ranges on 50 Ω Input Filters off

pk-pk

–75 dBc

50 Ω 1MΩ Excludes

Range

pk-pk

Filters

)

Off

Antialias Filter On

Filters

Off

0.2 57 dB 56 dB 53 dB 55 dB

0.4 58 dB 57 dB 55 dB 57 dB

1 58 dB 58 dB 57 dB 57 dB

2 58 dB 58 dB 57 dB 57 dB

4 — — 56 dB 58 dB

50 Ω 1MΩ Includes

Range

pk-pk

Filters

)

Off

Antialias Filter On

Filters

Off

0.2 57 dB 56 dB 53 dB 55 dB

0.4 58 dB 57 dB 55 dB 57 dB

1 58 dB 58 dB 57 dB 57 dB

2 58 dB 58 dB 57 dB 57 dB

Antialias Filter On

or antialias filter on

Two tones at

10.2 MHz and

11.2 MHz

Each tone is –7 dBFS

harmonics

10 MHz, –1 dBFS input signal

Measured from DC to 100 MHz

harmonics

10 MHz, –1 dBFS input signal

Measured from DC to 100 MHz

4 — — 56 dB 57 dB

–10

–20

–30

–40

–50

–60

–70

Amplitude (dBFS)

–80

–90

–100

9.83 MHz, –1 dBFS Input Signal

–110

10 M 20 M 30 M 40 M 50 M 60 M 70 M 80 M 90 M 100 M1 M

Frequency (Hz)

Figure 2. NI 5124 Dynamic Performance, 50 Ω, 1 V

pk-pk

Range,

262,144 Point FFT (Typical)

NI PXI/PCI-5124 Specifications 8 ni.com

Specification Val ue Comments

RMS Noise Range (V

0.2 NI PXI-5124:

0.4 188 μV

1 470 μV

2 940 μV

4 1.88 mV

10 4.7 mV

(1 MΩ only)

) 50 Ω 1MΩ Noise filter on

pk-pk

50 Ω terminator connected to input

94 μV

rms

(0.047% FS)

NI PCI-5124:

106 μV

rms

(0.053% FS)

(0.047% FS)

rms

(0.047% FS)

rms

(0.047% FS)

rms

(0.047% FS)

— 9.4 mV

NI PXI-5124:

104 μV

rms

(0.052% FS)

NI PCI-5124:

116 μV

rms

(0.058% FS)

192 μV

rms

(0.048% FS)

480 μV

rms

(0.048% FS)

960 μV

rms

(0.048% FS)

1.92 mV

rms

(0.048% FS)

4.8 mV

rms

(0.048% FS)

rms

(0.047% FS)

Specification Val ue Comments

RMS Noise Range (V

0.2 NI PXI-5124:

0.4 200 μV

1 500 μV

2 1.0 mV

4 2.04 mV

10 5.1 mV

(1 MΩ only)

) 50 Ω 1MΩ Antialias

pk-pk

NI PXI-5124:

112 μV

rms

(0.056% FS)

NI PCI-5124:

126 μV

rms

(0.063% FS)

rms

(0.05% FS)

rms

(0.05% FS)

rms

(0.051% FS)

rms

(0.051% FS)

N/A 10.2 mV

130 μV

rms

(0.065% FS)

NI PCI-5124:

146 μV

rms

(0.073% FS)

216 μV

rms

(0.054% FS)

510 μV

rms

(0.051% FS)

1.02 mV

rms

(0.051% FS)

2.16 mV

rms

(0.054% FS)

5.2 mV

rms

(0.052% FS)

rms

(0.051% FS)

filter on

50 Ω terminator connected to input

NI PXI/PCI-5124 Specifications 10 ni.com

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National Instruments NI PXI-PCI-5124 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

NI PXI/PCI-5124 Specifications

Contents

Vertical

Analog Input (Channel 0 and Channel 1)

Figure 1. NI 5124 Frequency Response (Typical)