Programmable Attenuators
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POWER ATTENUATORS
TYPE ATF
National RF’s Type ATF Power Attenuators were designed to allow interfacing of linear power amplifiers to RF exciters, where a specific amount of drive to the amplifier is prescribed. Often, however, drive from the RF exciter exceeds this minimum prescribed level and some form of power attenuation must be used in order to not damage the input of the power amplifier. National RF’s type ATF-3 offers 3 dB of power attenuation (1/2 of the power) when used between the exciter and the amplifier and will handle an input power of 132 Watts, RMS (continuous power) while providing about 66 Watts RMS output power, when it is terminated into 50 ohms. In practice, the ATF-3 attenuator will handle exciters achieving Peak Envelope Power levels (PEP) in the area of 200 to 250 Watts while providing half of that power to the load. For less attenuation requirements, the ATF-1 and ATF-2 offer 1 and 2 dB of attenuation, respectively.
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PXI Programmable Resistor Card 2-Channel 3 Ohm to 16.3k Ohm - SPST
40-294-131
These PXI Programmable Resistor modules are available with either two channels of 16-bit, two channels of 12-bit or four channels of 8-bit resistor chains in a single 3U PXI module. The module is ideal for simulating sensors for control and management systems under test, allowing the user to verify system response in design verification or manufacturing test applications.
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PXI 2.5W Programmable Resistor Module, 4-Channel, 2Ω to 52.4kΩ
40-251-033
The 40-251-033 is a programmable resistor module with 4 channels which can be set between 2Ω and 52.4kΩ with 1Ω resolution The 40-251 range provides a simple solution for applications requiring up to 2.5W of power handling per channel. The 40-251 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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Voltage Variable Attenuators
a High Reliability Low Noise Voltage Controlled Oscillator (VCO) which covers a 10 MHz to 20 MHzfrequency band with a voltage tuning range from 0V to 20V. This design features exceptional phase noise performance of -120dBc/Hz @ 10 kHz offset. Supply Voltage is +15V with a generated output power level of +10 dBm and 2nd harmonic output of-11 dBc typical. The assembly is RoHs compliant and available in a compact 0.5 inch SMT package with an industry standardmounting footprint. The bottom surface is copper clad with 2-5 micro inches of immersion Gold over 150 - 250 micro inchesof Electro less Nickel which makes it resistant to oxidation for ease of soldering. The VCO operates over a temperature rangeof -40°C to +85°C and is designed to meet a variety of MIL-STD-202 test conditions including Humidity, Shock, and Vibration.
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PXI Precision Resistor Module 6-Channel, 2.5 to 773k
40-297-043
This 6-channel PXI Precision Resistor Module provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-297 series is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI 2.5W Programmable Resistor Module, 2-Channel, 1.5Ω to 925Ω
40-251-121
The 40-251-121 is a programmable resistor module with 2 channels which can be set between 1.5Ω and 925Ω with 0.25Ω resolution The 40-251 range provides a simple solution for applications requiring up to 2.5W of power handling per channel. The 40-251 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI High Density Precision Resistor Module, 3-Channel, 3.5Ω to 1.51MΩ
40-298-144
The 40-298-144 is a high density programmable resistor module with 3 channels which can be set between 3.5Ω and 1.51MΩ with 2Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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Attenuators
The 01311 attenuator chip series is designed to achieve precision and tight flatness with an attenuation accuracy of ± 0.2 dB on our 1-10 dB pads and ± 0.3 dB on our 11-20 dB pads. SemiGen tests 100% of all attenuator chips prior to shipment to verify that they meet specifications.
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PXI 10W Programmable Resistor Module, 1-Channel, 1.5Ω to 925Ω
40-253-021
The 40-253-021 is a programmable resistor module with 1 channel which can be set between 1.5Ω and 925Ω with 0.25Ω resolution The 40-253 range provides a simple solution for applications requiring up to 10W of power handling per channel. The 40-253 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI/PXIe 15W Programmable Resistor Module
42-254-013
The 40-254-013 (PXI) and 42-254-013 (PXIe) are programmable resistor modules with 2 channels which can be set between 1Ω and 238Ω with 1Ω resolution The 40-254 range provides a simple solution for applications requiring up to 15W of power handling per channel.
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Fixed Attenuators
In circuits are used to lower voltage, dissipate power, and to improve impedance matching. In measuring signals, attenuator pads or adapters are used to lower the amplitude of the signal a known amount to enable measurements, or to protect the measuring device from signal levels that might damage it.
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PCI High Density Pecision Resistor Card, 4-Channel, 3Ω To 26.7kΩ
50-298-132
The 50-298-132 is a high density programmable resistor card with 4 channels which can be set between 3Ω and 26.7kΩ with 0.5Ω resolution The 50-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI 2.5W Programmable Resistor Module, 1-Channel, 2.5Ω to 395kΩ
40-251-142
The 40-251-142 is a programmable resistor module with 1 channel which can be set between 2.5Ω and 395kΩ with 0.5Ω resolution The 40-251 range provides a simple solution for applications requiring up to 2.5W of power handling per channel. The 40-251 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI High Density Precision Resistor Module, 9-Channel, 3Ω to 13.6kΩ
40-298-031
The 40-298-031 is a high density programmable resistor module with 9 channels which can be set between 3Ω and 13.6kΩ with 0.25Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI 2.5W Programmable Resistor Module, 1-Channel, 2.5Ω to 1.51MΩ
40-251-144
The 40-251-144 is a programmable resistor module with 1 channel which can be set between 2.5Ω and 1.51MΩ with 2Ω resolution The 40-251 range provides a simple solution for applications requiring up to 2.5W of power handling per channel. The 40-251 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI High Density Precision Resistor Module, 9-Channel, 2Ω to 31.5Ω
40-298-110
The 40-298-110 is a high density programmable resistor module with 9 channels which can be set between 2Ω and 31.5Ω with 0.125Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PCI Precision Resistor Card 9-Channel, 1Ω To 31.5Ω
50-297-110
The 50-297 provides a simple solution for applications requiring accurate simulation of resistive sensors. The 50-297 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI High Density Precision Resistor Module, 3-Channel, 4Ω to 11.4MΩ
40-298-153
The 40-298-153 is a high density programmable resistor module with 3 channels which can be set between 4Ω and 11.4MΩ with 1Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PCI Precision Resistor Card 9-Channel, 1.5Ω To 472Ω
50-297-020
The 50-297 provides a simple solution for applications requiring accurate simulation of resistive sensors. The 50-297 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI Precision Resistor Module 9-Channel, 1 to 470
40-297-114
This 9-channel PXI Precision Resistor Module provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-297 series is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI High Density Precision Resistor Module, 18-Channel, 2Ω to 62.1Ω
40-298-011
The 40-298-011 is a high density programmable resistor module with 18 channels which can be set between 2Ω and 62.1Ω with 0.25Ω resolution The 40-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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Low Voltage Attenuator
2-20
Take advantage of excellent attenuators at a low price. These low voltage units have excellent microwave characteristics and are ideal as an inexpensive low voltage unit for use with our 142 series high voltage precision attenuators while still providing a very respectable and clean 20 ps output risetime.
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PXI 5W Programmable Resistor Module, 4-Channel, 1Ω to 31.5Ω
40-252-010
The 40-252-010 is a programmable resistor module with 4 channels which can be set between 1Ω and 31.5Ω with 0.125Ω resolution The 40-252 range provides a simple solution for applications requiring up to 5W of power handling per channel. The 40-252 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. Each channel is able to simulate short or open circuit conditions that can be experienced in a system caused by faulty wiring or sensors.
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PCI Programmable Resistor Card 2-Channel 3 Ohm To 32.7k Ohm - SPST
50-294-132
The 50-294 series of PCI Programmable Resistor cards are available with two channels of 16-bit, two channels of 12-bit or four channels of 8-bit resistor chains in a single card. These cards are ideal for simulating sensors for control and management systems under test, allowing the user to verify system response in design verification or manufacturing test applications.
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Fixed Attenuators
ZTS provides 2 to 1000 Watts fixed attenuators with many types of connectors to choose from, maximum frequency would reach 67 GHz, we also provide custom or calibrated service as per your request.
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PCI High Density Pecision Resistor Card, 6-Channel, 4Ω To 5.82MΩ
50-298-052
The 50-298-052 is a high density programmable resistor card with 6 channels which can be set between 4Ω and 5.82MΩ with 0.5Ω resolution The 50-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors. The 40-298 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI/PXIe High Density Precision Resistor Module
42-297A-020
The 40-297A-020 (PXI) and the 42-297A-020 (PXIe) are 9-channel programmable resistors with a range of 1.5 Ω to 472 Ω. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PXI 5W Programmable Resistor Module, 2-Channel, 1Ω to 239Ω
40-252-113
The 40-252-113 is a programmable resistor module with 2 channels which can be set between 1Ω and 239Ω with 1Ω resolution The 40-252 range provides a simple solution for applications requiring up to 5W of power handling per channel. The 40-252 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. Each channel is able to simulate short or open circuit conditions that can be experienced in a system caused by faulty wiring or sensors.
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