Butterworth Filters
Refine signal, providing the flattest possible frequency in the passband, with a monotonic response.
See Also: Bessel Filters
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Product
NI-9253, 50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module
785989-02
Current Input Module
50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module - The NI-9253 is an 8-channel analog input module for ComapctDAQ and CompactRIO systems. Each channel provides a ±20 mA input range and 24 bits of resolution at a 50 kS/s sample rate. The NI-9253 has several diagnostic features to ensure your system is operating nominally at all times with open channel detection, power supply detection, and configurable thresholds. The NI-9253 has eight LEDs to indicate the status of each channel and the power supply so that a user in the field can easily validate that the system is operating normally. The NI-9253 also features a number of programmable hardware filters. By choosing the specific Butterworth and comb filters for your application, you can significantly reduce the noise in your system.
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Product
NI-9326, 6-Channel, 150 V, 128 kHz C Series Frequency Input Module
786999-02
Frequency Input Module
6-Channel, 150 V, 128 kHz C Series Frequency Input Module - The NI-9326 is a channel-to-channel isolated frequency input module for CompactDAQ and CompactRIO systems. This module includes six differential input channels with a 0 Vrms to 150 Vrms input range. The NI-9326 also features configurable thresholds for connection to a variety of variable reluctance sensors, single channel encoders, and hall-effect sensors. You can use the included embedded counters to perform frequency measurements or edge-counting for tracking total counts on a periodic signal. Additionally, the NI-9326 supports configurable Butterworth filters to help you perform low-noise frequency measurements.
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Product
NI-5783, 40 MHz Bandwidth Transceiver Adapter Module for FlexRIO
784364-01
Transceiver Adapter Module
The NI‑5783 has DC‑coupled inputs with two variants: an elliptic filter variant optimized for frequency-domain applications and a Butterworth filter variant optimized for time-domain applications. The NI‑5783 is particularly well suited for applications in software defined radio, electronic warfare, high-performance machine control, and medical imaging. The NI‑5783 is compatible only with the PXI FPGA Module for FlexRIO modules that have a Kintex‑7 FPGA and the stand-alone Controller for FlexRIO.
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Product
NI-9252 , ±10 V, 50 kS/s/ch, 24-Bit, 8-Channel C Series Voltage Input Module
786782-01
Voltage Input Module
±10 V, 50 kS/s/ch, 24-Bit, 8-Channel C Series Voltage Input Module - The NI-9252 is an 8-channel analog input module for CompactDAQ and CompactRIO systems. Each channel provides a ±10 V measurement range and 24 bits of resolution at a 50 kS/s sample rate. The NI-9252 features a … number of programmable hardware filters. By choosing the specific Butterworth and comb filters for your application, you can significantly reduce the noise in your system.
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Product
NI-5783, 40 MHz Bandwidth Transceiver Adapter Module for FlexRIO
784364-02
Transceiver Adapter Module
The NI‑5783 has DC‑coupled inputs with two variants: an elliptic filter variant optimized for frequency-domain applications and a Butterworth filter variant optimized for time-domain applications. The NI‑5783 is particularly well suited for applications in software defined radio, electronic warfare, high-performance machine control, and medical imaging. The NI‑5783 is compatible only with the PXI FPGA Module for FlexRIO modules that have a Kintex‑7 FPGA and the stand-alone Controller for FlexRIO.
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Product
NI-9252, ±10 V, 50 kS/s/ch, 24-Bit, 8-Channel C Series Voltage Input Module
786783-01
Voltage Input Module
±10 V, 50 kS/s/ch, 24-Bit, 8-Channel C Series Voltage Input Module - The NI-9252 is an 8-channel analog input module for CompactDAQ and CompactRIO systems. Each channel provides a ±10 V measurement range and 24 bits of resolution at a 50 kS/s sample rate. The NI-9252 features a number of programmable hardware filters. By choosing the specific Butterworth and comb filters for your application, you can significantly reduce the noise in your system.
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Product
NI-9326, 6-Channel, 150 V, 128 kHz C Series Frequency Input Module
786999-01
Frequency Input Module
6-Channel, 150 V, 128 kHz C Series Frequency Input Module - The NI-9326 is a channel-to-channel isolated frequency input module for CompactDAQ and CompactRIO systems. This module includes six differential input channels with a 0 Vrms to 150 Vrms input range. The NI-9326 also features configurable thresholds for connection to a variety of variable reluctance sensors, single channel encoders, and hall-effect sensors. You can use the included embedded counters to perform frequency measurements or edge-counting for tracking total counts on a periodic signal. Additionally, the NI-9326 supports configurable Butterworth filters to help you perform low-noise frequency measurements.
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Product
Analog Filter
SIM965
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Stanford Research Systems, Inc.
The SIM965 Analog Filter is ideal for signal conditioning applications where Bessel or Butterworth filters are needed. Bessel filters offer clean step response (negligible overshoot) and linear phase response, while Butterworth filters provide excellent pass-band flatness with some overshoot
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Product
Filtered Analog Input Expansion Board
MSXB 048
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The MSXB 048 Filtered Analog Input Expansion Board has a four-pole low-pass Butterworth filter on each of its 16 single-ended channels. For DAP applications that require analog filters to take out all above-Nyquist frequencies before signal conversion, it simply replaces the MSXB 037 Analog Input Expansion board. Signal inputs normally connect to the MSXB 048 through a panel-mount DB-37 connector.
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Product
NI-9253, 50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module
785989-01
Current Input Module
50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module - The NI-9253 is an 8-channel analog input module for ComapctDAQ and CompactRIO systems. Each channel provides a ±20 mA input range and 24 bits of resolution at a 50 kS/s sample rate. The NI-9253 has several diagnostic features to ensure your system is operating nominally at all times with open channel detection, power supply detection, and configurable thresholds. The NI-9253 has eight LEDs to indicate the status of each channel and the power supply so that a user in the field can easily validate that the system is operating normally. The NI-9253 also features a number of programmable hardware filters. By choosing the specific Butterworth and comb filters for your application, you can significantly reduce the noise in your system.
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Product
sbRIO-9253, Non-Enclosed, 50 kS/s/ch, 24-Bit, 8-Channel C Series Current Input Module
787433-01
Current Input Module
Non-Enclosed, 50 kS/s/ch, 24-Bit, 8-Channel C Series Current Input Module - The sbRIO-9253 is an 8-channel analog input module for CompactRIO Single-Board Controller that provides a ±20 mA input range and 24 bits of resolution at a 50 kS/s sample rate. This module includes diagnostic functionalities to ensure nominal system operations with open-channel detection, power supply detection, and configurable thresholds. You can view the status of each channel and the power supply with eight LEDs. The sbRIO-9253 also features programmable hardware filters for your applications, such as specific Butterworth and comb filters that you can use to reduce the noise in your system.
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Product
Ultra-Low Noise Filter, 42 V / 105 MA, 50 Ω
N1298B
Noise Filter
The N1298 Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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Product
Low-Noise Filter, 210 V / 3 A
N1298C
Noise Filter
The N1298 Series power source accessories are a collection of low noise filters for the Keysight B2960 Series precision source / measure units (SMUs).
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Product
Filters
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In order to minimize filter roll-off, we start with a quality, highly polished substrate and apply layers of metallization within tight tolerances. Our highly anisotropic ion beam etching process enables us to produce features down to 10 microns. Furthermore, the milling process yields a high consistency from circuit to circuit meaning that whether we produce 1 or 100,000 filters, each one will have consistent filter roll-off characteristics.
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Product
DC Filters
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This DC filter provides substantial noise reduction on DC power lines of up to 50V 9A. Filter provides noise suppression in both directions protecting your DC lines from noise generating by a particular piece of equipment or protecting your sensitive equipment from noise coming from DC power supply or other loads. DC filter provides noise suppression for both power lines – positive and negative, plus common-mode noise vs. ground. Filter uses plug-in terminal block for connections and mounting flanges for easy installation. Its rugged construction makes it easy to fit in many industrial tools.
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Product
Filters & Switch Filter Banks
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PMI offers the highest quality filters, switch filter banks, filter assemblies, diplexers, multiplexers for industrial and military applications in the frequency range of DC to 40 GHz. All PMI’s Switch Filter Banks use PMI’s proprietary Solid-state Switch designs, which offer high speed and improved performance. While there are many standard models, PMI can design and build to meet your specifications.
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Product
Highpass Filters
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K&L Microwave provides highpass filters in multiple topologies built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications, as well as product families. Use the quote cart to request a quote on a specific design.
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Product
Tunable Filters
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Our Tunable Filters can be used in a wide range of applications from R & D to production. We have both Gaussian, using dielectric multilayer coatings, and Flat-Top, using gratings, filter profiles available.
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Product
RF Filters
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Smiths Interconnect is committed to providing technically advanced, high quality “state-of-the-art” RF Filters, Multiplexers, Switched Filter Banks, and Integrated assemblies, from 100 KHz to 65 GHz. All products are subject to the same rigorous design, manufacturing, and inspection criteria. Regardless of the application, our internal process and procedures help ensure that all products are fully compliant to all specifications. Our R & D activities are constantly evaluating new materials, plating techniques, and manufacturing processes to offer the highest performing components available today.
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Product
Wireless Filters
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K&L Microwave offers a variety of wireless filters for the communications marketplace, built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications. Use the quote cart to request a quote on an existing design or to provide specifications for a custom design.
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Product
Capacitor for DC Filtering
FIL1
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Lifasa - International Capacitors, SA
FIL condensers are specially designed for use in direct current sources and their functions are to filter the alternating output ripple and protect the line from instantaneous peaks and surges of tension.
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Product
Anechoic Chamber Filters
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RF leakage through Ethernet and USB cables can destroy even the best RF enclosures and chambers. The need for filtering in the ever congested RF environment requires special filters that can pass USB 2.0 and 10/100/1000 Mbps Ethernet signals and filter out unwanted higher frequencies such as cellular and WiFi. The Adaura Technologies USB/Gigabit Filters provide one GigE and one USB 2.0 pass-through connections while filtering out other RF up to 8GHz. It has a small form factor to allow easy installation. It is a most cost effective solution for a clean chamber set up. In a typical chamber, WiFi signals are reduced to <-100dBm with this filter installed.
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Product
High-Pass Filters
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is an electronic filter that passes signals with a frequency higher than a certain cutoff frequency and attenuates signals with frequencies lower than the cutoff frequency.
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Product
Semrock Optical Filters
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IDEX Health & Science offers a comprehensive line of Semrock optical filters. We set the standard in performance, quality, and reliability for the life science, point-of-care, clinical diagnostic, and analytical instrumentation industries. We have applied patented design techniques to create some of the most spectrally sophisticated optical filters on the market. Whether you select from our extensive catalog or we design a custom filter to your exact specifications, you can be confident of our uncompromising quality, reliability, and reproducible results.
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Product
Gas Filters
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WITT gas filters enable the finest filtering of impurities in technical gases such as acetylene, argon., oxygen, hydrogen, methane, carbon dioxide, helium, compressed air and ethylene. They thus protect downstream equipment and systems. Some gas filters are also referred to as gas cleaners.
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Product
Broadcast Filters UHF
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RFS Waveguide UHF filters are now 4th generation products designed for global combining and filtering applications associated with DTV and analog television transmissions.
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Product
Low-Pass Filters
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Is a filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. The exact frequency response of the filter depends on the filter design.
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Product
Switched Filter Banks
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K&L Microwave provides Switched Filter Bank (SFB) products built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications. Use the quote cart to request a quote on an existing design or to provide specifications for a custom design.





























