Low Pass Filters
Refine signal, allowing the transmission of signal below a specific corner frequency, while attenuating the frequencies above.
See Also: Filters, Filter / Amplifiers, EMI Filters, Programmable Filters
- Pickering Interfaces Inc.
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PXI 32 Channel I/O, High and Low Side Driver
40-413-003
The 40-413 range is available in three configurations, a high side only, a low side only and a combined high and low side (shown here) –each capable of driving 2A loads. Each output is fully protected against over-voltage, over-current and thermal overload, ensuring robust and reliable operation in the toughest test environments.
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Band Pass Filters
High-Pass (HPF series), Low Pass (LPF series) and Band Pass (BPF series) Filters are available, providing desired skirt selectivity and rejection levels with minimum insertion loss in the pass band. The filters are offered in all standard waveguide bands covering 18 to 400 GHz depending on our possibility to fulfil the customers' requirements. Dimensions of filters depends on required specifications. .
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Passive Components
Ducommun millimeter wave products include various passive components including multi-hole directional couplers (PCM), crossguide couplers (PCC), magic tees (PCT), coax power dividers (PPD), bandpass, low pass and high pass filters (PFB, PFL and PFH), waveguide diplexers (PDC), waveguide transitions (PRC and PTW), waveguide to coax adapters (PTC) and waveguide components (PWS, PWE, PWH, PWM and PWT). These passive components cover frequency range from 8.2 to 110 GHz and feature high performance and low cost.
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Low Voltage DC / Battery Powered HV Amplifiers
WMA-01 And WMA-01LF
The Falco Systems WMA-01 is a high voltage amplifier that runs from an 24 - 30V DC power supply and can be battery powered if required, e.g. for use in a Faraday cage. Its internal high voltage generator is inductor-free and hence does not spread magnetic interference in sensitive experimental setups. The output noise is impressively low at 3mVrms. For extremely low noise applications where bandwidth is not an issue, a dedicated WMA-01LF version is available that contains an output low pass filter capacitor which reduces the bandwidth to 50Hz, but makes the noise drop to below 0.1mVrms. This bandwidth-limited amplifier is ideal for MEMS or piezo positioning with manual voltage adjustment.
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ACDC
EA Series
The EA Series of line operated power supplies features near constant efficiency over theentire rated input voltage range. These electrically identical families employ a highly efficient, closed loop ripple regulation circuit, which contains a low pass filter. Each stage, transformer, filter and regulator is engineered for maximum efficiency.
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Programmable, 2-Channel Low-Pass Filter Module
AAF-2Fe
Programmable, 2-Channel Low-Pass Filter Module. The AAF-2Fe may be used with the AAF-3PCI, AAF-3, AAF-2, or AAF-1 filter boards.
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Precision Analog Anti-Alias Low-Pass Filter Board
GSAF-10
The GSAF-10 Gold Series are analog low-pass filter boards that offer the performance required to maintain the maximum accuracy of high-precision 16- and 18-bit A/D converters.
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Spectrum Marker Generator
NSG-2
National RF, Inc. is pleased to announce the production of a new device, the Type NSG-2 Spectrum Marker Generator. The generator is intended to be used with either spectrum analyzers or communications receivers to mark specific frequency intervals in the RF spectrum. When used with receivers, it is essentially a frequency calibrator, thus making it attractive for use with vintage receivers with analog dials. The NSG-2 provides a leveled amplitude output over nearly 100 MHz of RF spectrum, thus m...show more -
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Dual Filter
Trig-TekTM 550D
Two channels with variable high pass and low pass filters in a module 7" high x 2.6" wide
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Clamp Meters
0.001 mA Current Resolution, Comply With IEC61557-13: Class 2, ≦ 30A/m, True RMS Measurement For All Applications, Low Pass Filter Function
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Dual Voltage Buffer with Current Drive
BUF-01
The BUF-01 Voltage Buffer is a dual channel buffer capable of driving up to 50 mA of current on each channel at up to ±10 V output. The buffer has a 2nd order low pass filter with 3 dB point of 119 kHz to remove high frequency noise. The unit’s differential inputs are built to withstand high DC over-voltages up to ±50 VDC and greater than ±100 V transients. Gain of the unit is 1 allowing for minimal insertion issues.
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PCI I/O Module for Sound and Vibration
JSV-4461-PCI
2-channel ICP analog voltage inputMaximum sample rate: 204.8KS/s; simultaneous acquisitionAnalog-to-digital converter: delta-sigma, 24 bitsPhase Accuracy < 0.05deg@10KHzMaximum analysis bandwidth：96 KHzInput range from ± 42.4 V to ± 316 mV Coupled Mode: AC, DCDigital filter: user-defined low pass, high pass, band pass, band stopDynamic range: 118 dB; harmonic distortion: -107dB; channel crosstalk: -138dBICP current: 0-4 mA, optional 2-channel analog output range: ±10 V; update rate: 204.8 kS/s
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Precision Low-Loss Multiplexers
Maury’s line of diplexers (DP-series) and triplexers (TP-series) are designed for applications which require combining/ splitting signals at or around harmonic frequencies (nFo) and are connectorized for design-in and test and measurement applications.DP-series diplexers are designed using low-pass and high-pass filters and pass bias between the low-frequency (or Fo) port and the common (or DUT) port.TP-series triplexers are designed using low-pass, bandpass and high-pass filters and pass bias b...show more -
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Low Voltage DC / Battery Powered High Voltage Amplifiers
WMA-005 And WMA-005LF
The Falco Systems WMA-005 is a high voltage amplifier that runs from an 24 - 30V DC power supply and can be battery powered if required, e.g. for use in a Faraday cage. Its internal high voltage generator is inductor-free and hence does not spread magnetic interference in sensitive experimental setups. The output noise is impressively low at 3mVrms. For extremely low noise applications where bandwidth is not an issue, a dedicated WMA-005LF version is available that contains an output low pass filter capacitor which reduces the bandwidth to 50Hz, but makes the noise drop to below 0.1mVrms. This bandwidth-limited amplifier is ideal for MEMS or piezo positioning with manual voltage adjustment.
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Low Pass and Bandpass SMA Coaxial Filters
Fairview Microwave’s bandpass filters were developed for use in various applications including GPS, ISM, RFID and Wi-Fi systems and operate in several bands, some as low as 824 MHz and some as high as 5.875 GHz. Fairview’s low pass filters allow for tailoring of a test setup for a specific application and support upper band edges of 100, 225, 400, 1000, 2000 and 3000 MHz. All of these bandpass filters and low pass filters feature female SMA connectors.
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8-Channel Amplifier and Low-Pass Filter Module
SCS-816
The SCS-816 and SCS-817 amplifier/filter module provides eight 8-pole low-pass filters that can be individually configured for a cutoff-frequency from 0.5Hz to 70kHz(SCS-816) and 0.5Hz to 60kHz(SCS-817). Each of the SCS-816/SCS-817's eight channels features an instrumentation amplifier with software-selectable gains of 1 to 1000 in 1-2-5 steps.
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ACDC
ES Series
The ES Series of line operated power supplies features near constant efficiency over theentire rated input voltage range. These electrically identical families employ a highly efficient, closed loop ripple regulation circuit, which contains a low pass filter. Each stage, transformer, filter and regulator is engineered for maximum efficiency.
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Lowpass Filters
K&L Microwave provides lowpass 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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"Standard" RF Low Pass Filters
Coaxial Dynamics "Standard" line of RF Low Pass Filters offers several models to choose from at CW power ratings of 100 watts and 200 watts. These filters cover operating frequencies from 88 MHz to 400 MHz with less than 0.5 dB insertion loss and attenuation levels of 40, 50 and 60 dB.
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ACDC
EC Series
The EC Series of line operated power supplies features near constant efficiency over theentire rated input voltage range. These electrically identical families employ a highly efficient, closed loop ripple regulation circuit, which contains a low pass filter. Each stage, transformer, filter and regulator is engineered for maximum efficiency.
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1 MHz Bandwidth Voltage Preamplifier with Bandpass Filter
EC6081 mk2 - preamplifier
The EC6081 mk2 (VP2000) is a 1MHz bandwidth voltage preamplifier with bandpass filter that is designed for uses in conjunction with piezoelectric hydrophones. VP2000 offers excellent low-noise performance over the entire frequency range; and adjustable gain selection. A range of 12 high-pass and 12 low-pass filters are available, these allow ideal band pass filter settings.
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Handheld Digital Multimeter, 4 digit, Water and Dust Resistant
U1271A
Feature sets that meet traditional industrial requirements and improve productivity and safety Improved accuracy and resolution to meet traditional industrial requirements (30,000 counts resolution with 0.7% for ACV accuracy)Intelligent features to improve productivity and safety (selectable Low Pass Filter LPF and quick signal type identification Qik-V)Better grip Both visual and audible continuity indication in noisy environments Easy access to fuse for simplified maintenance Easy connectivity...show more -
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8-Channel Amplifier and Low-Pass Filter Module
SCS-814
The SCS-814 and SCS-815 amplifier/filter module provides eight 8-pole low-pass filters that can be individually configured for a cutoff-frequency from 0.5Hz to 70kHz(SCS-814) and 0.5Hz to 60kHz(SCS-815). Each of the SCS-814/SCS-815's eight channels features an instrumentation amplifier with software-selectable gains of 1 to 1000 in 1-2-5 steps.
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Industrial Clamp Meters
*Measures AC+DC current*AC and AC+DC voltage measurements with digital low pass filter for accurate readings on variable frequency drives*Also measures DC voltage, resistance, capacitance and frequency*Tests continuity and diodes*Flashlight inside clamp jaw for easier work in dark locations*Backlight & relative mode for added versatility*Peak-RMS measures motor inrush current*AmpTip™ increases accuracy on small wires and low current*Two voltage detection modes - non-contact or using a single test lead*Data hold*Recording of Maximum, Minimum, and Average readings*Crest (peak hold) feature captures current or voltage peaks as short as 5 milliseconds
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PXI I/O Module for Sound and Vibration
JSV-4498-PXI
16-channel ICP analog voltage input Maximum sample rate: 204.8KS/s; simultaneous acquisition Analog-to-digital converter: delta-sigma, 24 bits Phase accuracy < 0.02deg@10KHz Maximum analysis bandwidth：96KHz Input range from ± 10 V to ± 316mV Coupled mode：AC Signal conditioning: anti-aliasing filter Digital filter: user-defined low pass, high pass, band pass, band stop Dynamic range：114 dB ICP Current：0-4 mA, optional Overload indication: software displa
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2- to 8-Channel Anti-Alias Low-Pass Filter and Instrumentation Amplifier Card
AAF-3PCI
The AAF-3PCI is a 2- to 8-channel anti-alias low-pass filter and instrumentation amplifier PCI bus plug-in board for front-end signal conditioning in PC-based data acquisition systems.
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Filter Building Blocks
Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) filter building blocks. These devices were designed to simplify the implementation of band-pass, high-pass, low-pass, notch, or all-pass filters using classical filter realizations (such as Butterworth, Cauer, Bessel, and Chebyshev).
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Dual Channel 180 MS/s Digitizer PXI / PXIe Card
GX2482
The GX2482 series are a high performance, dual differential channel, 16-bit digitizer offering high dynamic range and excellent SFDR. The module’s differential inputs, coupled with its low distortion makes it an ideal instrument for analyzing high performance or low level analog signals. Each channel offers 3 selectable low pass filters, a 16 bit, 180 MS/s ADC, and 64 M words of memory for each channel.
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Frequency Counters
-Frequency Range : 0.2Hz to 5.5GHz Built-in CMOS Gate Array Fast, High-Resolution, 10 Digits Green LED Display Microprocessor Controlled Reciprocal Technique for Low Frequency Resolution Self Diagnosis Routine Total, RPM Function, Period Low Pass Filter(100KHz, -3dB) Rs-232c Interface(Option)
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Dual 10th Order Lowpass Filter
64-VBF
The 64-VBF 10th order Lowpass Filter is a dual channel filter with independent switch settable Cutoff Frequency (Fc). The filter has a linear phase DC accurate root raised cosine response. The unit’s differential inputs are built to withstand high DC over-voltages up to ±50 VDC and greater than ±100 V transients. Gain of the unit is 1 allowing for minimal insertion issues. The output can drive a high speed DAQ multiplexer with its fast settle and capacitive drive capability.
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Amplifier/Filter Module
SCS-818
The SCS-818 and SCS-819 amplifier/filter module provides eight 4-pole low-pass filters that can be individually configured for a cutoff-frequency from 0.5Hz to 70kHz(SCS-818) and 0.5Hz to 70kHz(SCS-819). Each of the SCS-818/SCS-819's eight channels features an instrumentation amplifier with software-selectable gains of 1 to 1000 in 1-2-5 steps.
