Model Explanation

PXI: Standard 3U PXI hybrid bus module, single slot, compatible with PXI/PXIe chassis.

5142: NI 5100 series number, representing 2 channels, 100 MHz bandwidth, 100 MS/s, 14 bits, with onboard signal processing for PXI oscilloscope.

Component Number (by memory):

779587‑01: Standard memory for each channel

779587‑02: 256 MB for each channel

Technical Specifications (25℃, preheated for 15 minutes)

Channels: 2 analog inputs, full-channel synchronous sampling

Resolution: 14 bits

Sampling Rate: Real-time 100 MS/s; Board I/Q extraction can reduce the rate

Analog Bandwidth: 100 MHz (‑3 dB) NI

Input Voltage Range: ±100 mV to ±10 V (multiple levels, 200 mVpp to 20 Vpp) NI

Input Impedance: 50 Ω ±2% / 1 MΩ ±0.75% (software selectable) NI

Coupling Mode: AC/DC (per channel independently; AC only 1 MΩ effective)

Onboard Memory: Standard / 256 MB (per channel)

Spurious Free Dynamic Range SFDR: Typical 75 dBc (50 Ω, small signal) NI

Signal-to-Noise Ratio SNR: Typical 64 dB

Total Harmonic Distortion THD: <‑75 dBc (50 Ω, 10 MHz) NI

Triggering Mode: Edge, Window, Hysteresis, Digital Trigger; 100 ps timestamp; Pre-trigger / Post-trigger

Clock: Internal 100 MHz; External 4–100 MHz sampling clock; Lockable PXI 10 MHz reference

Onboard Signal Processing: Quadrature Digital Down Conversion (DDC), Baseband I/Q Extraction, Anti-aliasing Filter NI

Power Consumption: Approximately 19 W

Size / Weight: 3U single slot, approximately 480 g

Environment: Operating 0–55℃; Storage -40–70℃; Humidity 10%–90% RH (no condensation)

Interfaces and Communication Configuration

Front-end Interface

2×BNC: CH0–CH1 analog input

1×BNC (TRIG): External analog trigger input

1×SMB (CLK IN): External sampling clock / reference input

1×SMB (CLK OUT): Internal clock / reference output

1×9-pin mini DIN (AUX I/O): Digital trigger I/O, PFI0/PFI1

Panel Indicator Lights

PWR (green): Power normal

RUN (green): Active when collecting, flashes when waiting for trigger

ERR (red): Over-temperature, over-current or configuration error

Bus and Synchronization

PXI Hybrid Bus, supports PXI trigger bus, Star trigger, RTSI synchronization

Multi-module synchronization phase error < 1 μs, supports multi-channel phase coherent acquisition

Software Driver

NI‑SCOPE Driver, supports LabVIEW, TestStand, Python, C#

NI MAX: Device identification, self-check, configuration, calibration

Companion: Soft front panel SFP, built-in measurement functions, RF/communication signal processing library Core function

14-bit high-resolution low-noise acquisition: high quantization accuracy, low noise, suitable for small signals and high-precision measurements

100 MHz bandwidth + 100 MS/s sampling: covers medium and high-frequency signals, suitable for communication, ultrasound, radio frequency and other scenarios

On-board orthogonal DDC and I/Q extraction: real-time down-conversion and downsampling, reducing CPU load, optimizing baseband analysis

Wide dynamic range: 75 dBc SFDR, 64 dB SNR, effectively suppressing harmonics and noise

Flexible input configuration: each channel AC/DC coupling, 50 Ω/1 MΩ impedance, multiple voltage range options available

Precise triggering and timestamp: multiple triggering modes, 100 ps timestamp, accurately capturing transient events

PXI synchronization and streaming: multi-module synchronization, supports high-speed data streaming storage and long-record acquisition Applicable scenarios

Communication and RF testing: Baseband I/Q signals, modulation signals, receiver performance tests (EVM, MER) after RF down-conversion, NI

Wireless device development: Time-domain / frequency-domain analysis of short-range communication devices such as WiFi, Bluetooth, ZigBee

Audio and acoustics: High-fidelity audio, microphone / speaker testing, low distortion analysis

Industrial precision measurement: Power supply ripple, sensor signals, transient and steady-state analysis of precise circuits

Research and medical: Low-noise high-resolution acquisition of biological electrical signals, ultrasound imaging, mass spectrometry analysis, etc.

Automotive electronics: High-precision testing of vehicle sensors, ECU, vehicle network signals

User and maintenance instructions

Installation and power-on

Power off installation, insert single slot and fix; chassis reliable grounding for anti-static

Power-on preheating for 15 minutes, NI MAX self-check to confirm no hardware errors

Keep the chassis ventilated during operation, environmental temperature ≤ 55℃, avoid blocking fans

Wiring and operation

Use 50 Ω coaxial cable for high-frequency signals, tighten BNC connector to reduce signal reflection

Select 50 Ω impedance for high-frequency / RF signals, 1 MΩ for low-frequency / high-voltage signals

Use AC coupling for small AC signals (only 1 MΩ), DC / slow-changing signals use DC coupling

Prioritize channel internal signals as trigger sources, set appropriate trigger level to avoid false triggering

Use PXI trigger bus or Star trigger for multi-module synchronization to ensure phase consistency

Maintenance and calibration

It is recommended to perform NIST traceable calibration once every 2 years; use internal self-calibration to compensate for temperature drift on a daily basis

Regularly clean dust from BNC/SMB/DIN interfaces to keep them dry; add dust caps for long-term inactivity

The working environment should be free of condensation, with humidity ranging from 10% to 90% RH, and away from strong electromagnetic interference

Do not input >±15 V voltage; do not plug in or unplug cables while powered on; avoid severe vibrations