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July 2025
SCXI-1140
SCXI-1140, 8-Channel, Differential Amplifier Module
Actual item may vary if no part number is provided on quote request.
✔ 2 Year Warranty Included
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✔ NIST Calibration Available
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments SCXI-1140 Differential Amplifier Module
The NI SCXI-1140 (Part Number: 776572-40) is a Simultaneous Sampling Differential Amplifier Module. This module comes featured with 8 channels and connections for the external timing signal. This module is compatible with the NI-DAQmx measurement services software. Therefore, the configuration remains simple and straightforward. This module can be used with the data acquisition boards from the NB Series with LabVIEW for Macintosh. This device can also be used with NI-DAQ software for Macintosh.
This device has 15 V/μsec channel output slew rate and 12 nV/√Hz input noise spectral density, as well as 75 nV/√Hz output noise spectral density. The NI SCXI-1140 can operate with ±10 V maximum output voltage. The NI SCXI-1140 comes with three dedicated jumpers: W11, W13, and W14 for communication between the SCXIbus and the data acquisition board. The SCXI-1140 Differential Amplifier Module comes equipped with DIP switch-programmable instrumentation amplifiers, buffered track-and-hold amplifiers, multiplexers, and output switches.
The input protection of the National Instruments SCXI-1140 features a 1 kΩ resistor in series. Each of this module’s input terminals is protected. The SCXI-1140 comes with four basic types of scanning modes, such as single module parallel and multiplexed scanning. This module has two registers. The ID register is a four-byte register for read-only functionality. On the other hand, the configuration register is a 32-bit write only register. There is a configuration register as well which cannot be accessed by the user. It is a 32-bit register designed to handle control and functions related tasks of the SCXI-1140.
SCXI-1140 End of Life Status has been announced by National Instruments, but the module will still be available for purchase and repairs by Apex Waves.
| Model | SCXI-1140 |
|---|---|
| Manufacturer | National Instruments |
| Series | SCXI |
| Type | Differential Amplifier Module |
| Channels | 8 |
| Maximum Voltage Range | -10 V - 10 V |
| I/O Connector | Screw terminals |
| SCXI-1140 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for SCXI-1140:
National Instruments SCXI-1140 Frequently Asked Questions
Question: Does the NI SCXI-1140 have external sample-and-hold timing signal connections?
Answer: Yes, the NI SCXI-1140 has connections for external sample-and-hold timing signals.
Question: Does the SCXI-1140 have an instrumentation amplifier?
Answer: Yes, each analog input channel on the SCXI-1140 has an instrumentation amplifier with differential inputs.
Question: Can the SCXI 1140 be connected to the SCXI-1121?
Answer: Yes, you can connect one or two SCXI-1121 modules configured for parallel mode to the SCXI 1140 module.
Question: What is the purpose of the simultaneous-sample-and-hold feature on the NI SCXI 1140?
Answer: The simultaneous-sample-and-hold feature of the NI SCXI 1140 allows you to sample multiple signals with negligible skew time between channels.
SCXI-1140 PDF Manuals
ARCHIVED--AT-MIO-16D-USER-MANUAL.PDF
ARCHIVED--AT-MIO-64F-5-USER-MANUAL.PDF
ARCHIVED--GUIDESCXI-1350-MULTI-CHASSIS-ADAPTER-INSTALLATION.PDF
ARCHIVED--LABVIEW-DATA-ACQUISITION-BASICS-MANUAL.PDF
ARCHIVED--LABVIEW-FUNCTION-AND-VI-REFERENCE-MANUAL.PDF
ARCHIVED--MEASURE-DATA-ACQUISITION-USER-MANUAL.PDF
ARCHIVED--NB-MIO-16X-USER-MANUAL.PDF
ARCHIVED--NI-DAQ-SOFTWARE-REFERENCE-MANUAL-FOR-MACINTOSH.PDF
ARCHIVED--NI-DAQ-USER-MANUAL-FOR-PC-COMPATIBLES.PDF
ARCHIVED--SCXI-1140-USER-MANUAL.PDF
ARCHIVED--SCXI-1341-LAB-1200-SERIES-CABLE-ASSEMBLY-INSTALLATION-GUIDE.PDF
ARCHIVED--TRADITIONAL-NI-DAQ-USER-MANUAL.PDF
GUIDE-DE-DC3A9MARRAGE-SCXI--DOCUMENT-MULTILINGUE---ANGLAIS-FRANC3A7AIS-ET-ALLEMAND-.PDF
Driver Downloads for SCXI-1140
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