Table Of Contents

PXIe-5111 Specifications

    Last Modified: January 11, 2019

    These specifications apply to the PXIe-5111 with 64 MB and 512 MB of memory.


    Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty. Warranted specifications account for measurement uncertainties, temperature drift, and aging. Warranted specifications are ensured by design or verified during production and calibration.

    Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

    • Typical specifications describe the performance met by a majority of models.
    • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
    • Measured specifications describe the measured performance of a representative model.

    Specifications are Nominal unless otherwise noted.


    Specifications are valid under the following conditions unless otherwise noted.

    • All vertical ranges, bandwidths, and bandwidth limiting filters
    • Sample rate set to 1.5 GS/s or 3.0 GS/s
    • Onboard sample clock locked to PXI_Clk100 reference clock
    • 15-minute warm-up time at ambient temperature
    • Chassis configured:[1]
      • PXI Express chassis fan speed set to HIGH
      • Foam fan filters removed if present
      • Empty slots contain PXI chassis slot blockers and filler panels

    Warranted specifications are valid under the following conditions unless otherwise noted.

    • Ambient temperature range of 0 °C to 55 °C
    • Altitude ≤2,000 m
    • Calibration cycle maintained
    • Self-calibration run after:
      • Warm-up time has elapsed
      • Module has been power cycled
      • PC or controller has been restarted or wakes from sleep or hibernation modes
    • External calibration performed at 23 °C ±3 °C

    Typical specifications are valid under the following conditions unless otherwise noted.

    • Ambient temperature range of 0 °C to 55 °C
    • Altitude ≤2,000 m


    Analog Input

    Number of channels

    Two (simultaneously sampled)

    Input type

    Referenced single-ended


    BNC, ground referenced

    Impedance and Coupling

    Input impedance

    50 Ω ±1.5%, typical

    1 MΩ ±1.0%, typical

    Input capacitance (1 MΩ)

    15.4 pF

    Input coupling



    Voltage Levels

    Table 1. Full-Scale (FS) Input Range and Vertical Offset Range
    Input Range (Vpk-pk) Vertical Offset Range
    50 Ω 1 MΩ
    0.04 V ±5 V
    0.1 V ±5 V
    0.2 V ±5 V
    0.4 V ±5 V
    1 V ±5 V ±20 V
    2 V ±5 V ±20 V
    4 V ±5 V ±20 V
    10 V ±2 V ±100 V
    20 V ±100 V
    40 V ±100 V
    Maximum input overload

    50 Ω

    |Peaks| ≤7 V

    1 MΩ[2]

    |Peaks| ≤250 V DC


    Signals exceeding the maximum input overload may cause damage to the device.



    8 bits

    DC accuracy[3]
    50 Ω

    Input range: 0.04 V

    ±[(2% × |Reading - Vertical Offset|) + (0.4% × |Vertical Offset|) + (1% of FS) + 0.2 mV], typical

    Input range: 0.1 V to 4 V

    ±[(2% × |Reading - Vertical Offset|) + (0.4% × |Vertical Offset|) + (1% of FS) + 0.2 mV], warranted

    Input range: 10 V

    ±[(2% × |Reading - Vertical Offset|) + (1.1% × |Vertical Offset|) + (1% of FS) + 0.2 mV], warranted

    1 MΩ

    Input range: 0.04 V

    ±[(2% × |Reading - Vertical Offset|) + (0.4% × |Vertical Offset|) + (1% of FS) + 0.2 mV], typical

    Input range: 0.1 V to 20 V

    ±[(2% × |Reading - Vertical Offset|) + (0.4% × |Vertical Offset|) + (1% of FS) + 0.2 mV], warranted

    Input range: 40 V

    ±[(2% × |Reading - Vertical Offset|) + (1.1% × |Vertical Offset|) + (1% of FS) + 0.2 mV], warranted

    DC drift[4]

    ±[(0.2% × |Reading - Vertical Offset|) + (0.004% × |Vertical Offset|) + (0.013% of FS)] per °C

    AC amplitude accuracy[3]

    ±0.25 dB at 50 kHz

    AC amplitude drift[4]

    ±0.0026 dB per °C at 50 kHz



    Input frequency: ≤200 MHz

    <-60 dB

    Input frequency: 200 MHz to 350 MHz

    <-50 dB

    Bandwidth and Transient Response

    Bandwidth (-3 dB)[6]

    50 Ω[7]

    325 MHz, warranted

    350 MHz, typical

    1 MΩ[8]

    350 MHz, typical

    Figure 1. 50 Ω Full Bandwidth Frequency Response, 3 GS/s, 1 Vpk-pk, Measured [6]

    Bandwidth-limiting filter

    20 MHz noise filter

    Figure 2. 50 Ω 20 MHz Filter Frequency Response, 3 GS/s, 1 Vpk-pk, Measured [6]

    AC-coupling cutoff (-3 dB)

    10 Hz

    Figure 3. Step Response, 50 Ω, 1 Vpk-pk, 500 ps Rising Edge, Measured
    Figure 4. Step Response, 1 MΩ, 1 Vpk-pk, 500 ps Rising Edge, Measured

    Spectral Characteristics[9]

    Spurious-free dynamic range (SFDR)[10]

    -45 dBc

    Table 2. Effective Number of Bits (ENOB) [11]
    Input Range (Vpk-pk) Filters
    20 MHz filter enabled Full bandwidth (Input Frequency <100 MHz)
    0.1 V to 4 V 7.3 6.7
    0.04 V 6.7 6.1

    Total harmonic distortion (THD)[10]

    -45 dBc


    RMS noise[12]

    0.04 Vpk-pk

    0.45% of FS

    All other ranges

    0.25% of FS


    Sample Clock


    Onboard clock (internal oscillator)

    Sample rate range, real time[13]

    22.89 kS/s to 1.5 GS/s

    Sample rate, time-interleaved sampling (TIS) mode[14]

    3.0 GS/s

    Timebase frequency

    1.5 GHz

    Timebase accuracy[15]

    ±50 ppm

    Sample clock jitter[16]

    1.1 ps RMS

    Phase-Locked Loop (PLL) Reference Clock



    Onboard clock (internal oscillator)


    PXI_Clk100 (backplane connector)

    Duty cycle tolerance

    45% to 55%, typical


    Supported triggers

    Reference (Stop) Trigger

    Reference (Arm) Trigger

    Start Trigger (Acquisition Arm)

    Advance Trigger

    Trigger types










    Trigger sources

    CH 0

    CH 1

    PFI <0..3>

    PXI_Trig <0..7>

    Minimum dead time

    Interpolator enabled

    400 ns

    Interpolator disabled

    400 ns

    Trigger delay

    0 to 7.51 × 1014 ns [(251 - 1) * Sample Clock Period]


    Dead time to 6.15 × 1018 ns [(264 - 1) * Sample Clock Period]

    Analog Trigger


    CH 0

    CH 1

    Table 3. Analog Trigger Time Resolution
    Interpolator Status Time Resolution
    TIS Enabled TIS Disabled
    Enabled 0.326 ps 0.651 ps
    Disabled 0.333 ns 0.667 ns
    Trigger filters

    Low frequency (LF) reject

    100 kHz

    High frequency (HF) reject

    100 kHz

    Minimum threshold duration[17]

    Sample clock period

    Digital Trigger


    PFI <0..3> (front panel HD-BNC connectors)

    PXI_Trig <0..7> (backplane connector)

    Time resolution


    1.333 ns


    5.333 ns

    Programmable Function Interface (PFI)


    PFI <0..3> (front panel HD-BNC connectors)


    Bidirectional per channel

    As an input (trigger)


    Start Trigger (Acquisition Arm)

    Reference (Stop) Trigger

    Reference (Arm) Trigger

    Advance Trigger

    Input impedance

    49.9 kΩ


    2 V, typical


    0.8 V, typical

    Recommended input range

    0 V to 3.3 V

    Maximum input overload

    +5 V tolerant

    Minimum pulse width

    10 ns

    As an output (event)


    Ready for Start

    Start Trigger (Acquisiton Arm)

    Ready for Reference

    Reference (Stop) Trigger

    End of Record

    Ready for Advance

    Advance Trigger

    Done (End of Acquisition)

    Output impedance

    50 Ω

    Logic type

    3.3 V CMOS

    Maximum current drive

    12 mA

    Maximum frequency

    50 MHz

    Minimum pulse width

    10 ns

    Probe Compensation


    Probe compensation terminal

    Ground terminal

    Output voltage[18]

    0 V to 5 V

    Maximum overload voltage

    25 V DC


    CableSense pulse voltage[19]

    0.4 V

    CableSense pulse rise time[20]

    1.6 ns

    Driver support for CableSense on the PXIe-5111 was first available in NI-SCOPE 18.7.

    Waveform Memory

    Available onboard memory sizes[21]

    64 MB

    512 MB

    Minimum record length

    1 sample

    Number of samples


    0 up to (Record Length - 1)


    0 up to Record Length

    Maximum number of records in onboard memory[22]


    Table 4. Examples of Allocated Onboard Memory per Record, 512 MB Option
    Channels Bytes per Sample Maximum Records per Channel Record Length Allocated Onboard Memory per Record
    1 1 100,000 1 192
    1 1 100,000 1,000 1,200
    1 1 52,758 10,000 10,176
    1 1 1 536,870,784 536,870,976
    2 1 100,000 1 192
    2 1 100,000 1,000 2,208
    2 1 26,630 10,000 20,160
    2 1 1 268,435,392 536,870,976


    External Calibration

    External calibration corrects the onboard references for gain and offset errors used in self-calibration and adjusts the compensation attenuator. All calibration constants are stored in nonvolatile memory.


    Self-calibration is done on software command. The calibration corrects for gain, offset, interleaving spurs, and intermodule synchronization errors. Run self-calibration after the specified warm-up time has elapsed and any time the module is power cycled or the PC or controller is restarted or wakes from sleep or hibernation modes. Refer to the NI High-Speed Digitizers Help at for more information on when to self-calibrate the device.

    Calibration Specifications

    Interval for external calibration

    2 years

    Warm-up time[23]

    15 minutes


    Driver Software

    Driver support for this device was first available in NI-SCOPE 18.6.

    NI-SCOPE is an IVI-compliant driver that allows you to configure, control, and calibrate the PXIe-5111. NI-SCOPE provides application programming interfaces for many development environments.

    Application Software

    NI-SCOPE provides programming interfaces, documentation, and examples for the following application development environments:

    • LabVIEW
    • LabWindows™/CVI™
    • Measurement Studio
    • Microsoft Visual C/C++
    • .NET (C# and VB.NET)

    Interactive Soft Front Panel and Configuration

    When you install NI-SCOPE on a 64-bit system, you can use InstrumentStudio to monitor, control, and record measurements from the PXIe-5111.

    InstrumentStudio is an application that allows you to perform interactive measurements on several different NI device types in a single application.

    Interactive control of the PXIe-5111 was first available via InstrumentStudio in NI-SCOPE 18.6. InstrumentStudio is included on the NI-SCOPE media.

    NI Measurement & Automation Explorer (MAX) also provides interactive configuration and test tools for the PXIe-5111. MAX is included on the driver media.


    Channel-to-channel skew, between the channels of a PXIe-5111

    50 Ω

    <60 ps

    1 MΩ

    <60 ps

    Synchronization with the NI-TClk API[24]

    NI-TClk is an API that enables system synchronization of supported PXI modules in one or more PXI chassis, which you can use with the PXIe-5111 and NI-SCOPE.

    NI-TClk uses a shared Reference Clock and triggers to align the Sample Clocks of PXI modules and synchronize the distribution and reception of triggers. These signals are routed through the PXI chassis backplane without external cable connections between PXI modules in the same chassis.

    Module-to-module skew, between PXIe-5111 modules using NI-TClk[25]
    NI-TClk synchronization without manual adjustment[26]

    Skew, peak-to-peak[27]

    200 ps

    Jitter, peak-to-peak[28]

    120 ps

    NI-TClk synchronization with manual adjustment[26]

    Skew, average[27]

    10 ps

    Jitter, peak-to-peak[28]

    8 ps

    Sample Clock delay/adjustment resolution

    <1 ps


    Current draw

    +3.3 V DC

    1.82 A

    +12 V DC

    1.16 A

    Power draw

    +3.3 V DC

    6 W

    +12 V DC

    14 W


    20 W

    Total maximum power allowed

    30 W



    3U, one-slot, PXI Express/CompactPCI Express module

    2.0 cm × 13.0 cm × 21.6 cm

    (0.8 in × 5.1 in × 8.5 in)


    380 g (13.4 oz)

    Bus Interface

    Form factor

    Gen 1 x4 module

    Slot compatibility

    PXI Express or hybrid

    Environmental Characteristics

    Temperature and Humidity



    0 °C to 55 °C


    -40 °C to 71 °C



    10% to 90%, noncondensing


    5% to 95%, noncondensing

    Pollution Degree


    Maximum altitude

    4,600 m (at 25 °C ambient temperature)

    Shock and Vibration

    Random vibration


    5 Hz to 500 Hz, 0.3 g RMS


    5 Hz to 500 Hz, 2.4 g RMS

    Operating shock

    30 g, half-sine, 11 ms pulse

    Product Certifications and Declarations

    Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit, search by model number or product line, and click the appropriate link in the Certification column.

    • 1 For more information about cooling, refer to the Maintain Forced-Air Cooling Note to Users available at
    • 2 Derate above 250 kHz at 20 dB/dec until 2.5 MHz, then derate at 5 dB/dec.
    • 3 Within ±5 °C of self-calibration temperature.
    • 4 Used to calculate errors when the onboard temperature changes more than ±5 °C from the self-calibration temperature.
    • 5 Measured on one channel with test signal applied to another channel and the same range setting on both channels. For 1 MΩ path, specifications are valid for input ranges ≤10 V (Vpk-pk).
    • 6 Normalized to 50 kHz.
    • 7 For input ranges ≤4 V (Vpk-pk) and temperature 0 °C to 30 °C.
    • 8 When used with the NI SP500X passive probe.
    • 9 Excludes ADC interleaving spurs.
    • 10 Input frequencies <100 MHz, input range ≤4 Vpk-pk. -1 dBFS input signal. Includes second through fifth harmonics.
    • 11 Input frequencies <100 MHz. -1 dBFS input signal corrected to FS. 1 kHz resolution bandwidth.
    • 12 Applies to all filter settings and input modes. Verified using a 50 Ω terminator connected to input.
    • 13 Divide by n decimation from 1.5 GS/s. For more information on the sample clock and decimation, refer to the NI High-Speed Digitizers Help.
    • 14 Single channel only.
    • 15 Phase-locked to onboard clock. The default clock is PXI_Clk100. Refer to your chassis specifications for the timebase accuracy of PXI_Clk100.
    • 16 Integrated from 100 Hz to 10 MHz. Includes the effects of converter aperture uncertainty and the clock circuitry jitter. Excludes trigger jitter.
    • 17 Data must exceed each corresponding trigger threshold for at least this minimum duration to ensure analog triggering.
    • 18 1 kHz, 50% duty cycle square wave.
    • 19 When measured with a high-impedance device.
    • 20 When sourcing into a 50 Ω cable or load.
    • 21 Onboard memory is shared among all enabled channels.
    • 22 For 512 MB option. You can exceed this value if you fetch records while acquiring data. For more information, refer to the Enable Records > Memory property in the NI High-Speed Digitizers Help at
    • 23 Warm-up time begins after the chassis and either the controller or PC is powered and NI-SCOPE is loaded.
    • 24 NI-TClk installs with NI-SCOPE.
    • 25 Although you can use NI-TClk to synchronize non-identical modules, these specifications apply only to synchronizing identical modules. Specifications are valid under the following conditions:
      • All modules installed in the same PXI Express chassis
      • NI-TClk used to align the sample clocks of each module
      • All parameters set to identical values for each module
      • Self-calibration completed
      • Ambient temperature within ±1 °C of self-calibration
      For other configurations, including multi-chassis systems, contact NI Technical Support at
    • 26 Manual adjustment is the process of minimizing synchronization jitter and skew by adjusting Trigger Clock (TClk) signals using the instrument driver.
    • 27 Skew is the misalignment between module timing across slots of a chassis and is caused by clock and analog path delay differences.
    • 28 Jitter is the variation in module alignment that can be expected with each call to NI-TClk Synchronize.

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