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July 2025
SCXI-1143
SCXI-1143, Butterworth Filter, Lowpass Filter Input Module
Actual item may vary if no part number is provided on quote request.
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" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
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" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
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May 2025
Gregg Flecki**** Verified Buyer
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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-1143 Lowpass Filter Input Module
The NI SCXI-1143 (Part Number: 776572-43) Lowpass Filter Input Module has an 8th-order Butterworth filter response, eight channels, ±30 V overvoltage protection when powered on, and 333 kS/s maximum sampling rate. This module can be used for antialiasing applications and is suggested for maximum flatness in the passband. NI-DAQ 7 driver software should be used with this module. Other recommended software includes: VI Logger, LabVIEW, Measurement Studio, and LabWindows/CVI.
The cutoff frequency of the Butterworth filter on the SCXI-1143 can be programmed for a range of frequencies, from 10 Hz-25 kHz. The specific frequencies available are fc = 100 kHz/n, where n = 4, 5, …,10,000. The user additionally has the option to control the cutoff frequency with an external clock. The eight channels all function with an identical cutoff frequency. Although, the user can separately bypass the eight filters in a module under software control to keep the channel unfiltered.
The following items are required to operate the NI SCXI 1143 module: an SCXI-1304 or SCXI-1305 terminal block, an SCXI chassis or PXI/SCXI combination chassis, an E/M Series DAQ instrument or an SCXI-1600, a computer (if utilizing an SCXI chassis), cabling, a cable adapter, and sensors as needed for the user’s application. The user will also need NI-DAQ and one of the software types mentioned previously, as well as guides/user manuals to each of the instruments being used.
SCXI-1143 Obsolete Status has been announced by National Instruments, but the module will still be available for purchase and repairs by Apex Waves.
| Model | SCXI-1143 |
|---|---|
| Manufacturer | National Instruments |
| Part Number | 776572-43 |
| Type | Lowpass Filter Input Module |
| Lowpass Filter Type | Butterworth |
| Frequency Range | 10 Hz to 25 kHz |
| Channels | 8 differential |
| Dimensions | 1.2 by 6.8 by 8.0 in. |
| Weight | 22.0 oz. |
| SCXI-1143 Manual | User Manual and Maintenance Manual Available for Download |
| Price | Contact a sales representative for a quote. |
Associated part numbers for SCXI-1143:
National Instruments SCXI-1143 Frequently Asked Questions
Question: What type of filter is used on the SCXI-1143?
Answer: The SCXI-1143 has an 8th-order Butterworth filter with a flat passband, ideal for providing uniform signal amplitude throughout.
Question: Can you program the cutoff frequency of the filters on the SCXI 1143?
Answer: Yes, you can program the cutoff frequency of the filters on the SCXI 1143 for a range of frequencies, from 10 Hz to 25 kHz. You can also cut off the frequency with an external clock.
Question: How are the calibration constants stored for the NI SCXI-1143?
Answer: The NI SCXI-1143 has an onboard EEPROM that stores the calibration constants for each channel and each input range.
SCXI-1143 PDF Manuals
ARCHIVED--LABVIEW-DATA-ACQUISITION-BASICS-MANUAL.PDF
ARCHIVED--NI-DAQ-USER-MANUAL-FOR-PC-COMPATIBLES.PDF
ARCHIVED--TRADITIONAL-NI-DAQ-USER-MANUAL.PDF
GUIDE-DE-DC3A9MARRAGE-SCXI--DOCUMENT-MULTILINGUE---ANGLAIS-FRANC3A7AIS-ET-ALLEMAND-.PDF
SCXI-1141-1142-1143-CALIBRATION-PROCEDURE.PDF
Driver Downloads for SCXI-1143
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