Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Audio Line Drivers and Receivers
Analog Devices audio line driver and receiver solutions feature differential-output buffer amplifiers and differential input buffer amplifiers to support a wide range of applications. By using low noise thermally matched thin film resistors and high slew rate amplifiers, these parts maintain the sonic quality of audio systems by eliminating power line hum, RF interference, voltage drops, and other externally generated noise commonly encountered with long audio cable runs. Applications involving this product portfolio include ADC drivers, high performance audio, sine/cosine encoders, and other professional and consumer uses.
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RF Front-End ICs
Analog Devices offers RF Front-End ICs for phased array antenna solutions. These RF Front-End ICsare placed right at the antenna element and can quickly switch between transmit and receive functions in radar applications. The power amplifier on the transmit side is highly efficient operating in short pulse durations. The low noise amplifier on the receive side has a low noise figure with high linearity so that it won’t distort the incoming return signal. The RF Front-End IC also incorporates a high performance switch to toggle between the transmit and receive paths. Highly integrated planar phased array antennae need small form factor solutions, and Analog Devices has integrated the switch, low noise amplifier, and power amplifier into a small surface mount package as well as the decoupling capacitors, providing an optimal solution.
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Small Step Frequency Synthesizer
ZFR Series
ZFR series programmable frequency synthesizers combine multi-octave bandwidth, small step size, low phase noise, fast switching speed, and a compact package size to create a truly versatile synthesizer. The ZFR series can be tailored to the specific frequency range and control interface required, with programmable frequencies to 31 GHz.
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Phase Detectors
CD series
The CD series is a phase detector module. It is possible to detect small level signal and signal buried in noise.
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Low Noise Amplifiers
Our range of ITAR Free, Low Noise Amplifiers (LNAs) cover a wide range of applications but are primarily suited to communication systems including both Data-Link and Satellite Communications (Satcom) systems. Our new K-Band LNA operates over a 19.2 - 21.2 GHz with 1.3 dB Noise Figure at 25°C. It is configured with a waveguide input and 2.92 output connector all in a hermetic package.
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PXI-5402, 14/16-Bit, 20/40 MHz Arbitrary Function Generator
779655-01
20 MHz Bandwidth, 14-Bit PXI Waveform Generator—The PXI‑5402 is a 20 MHz function generator capable of generating standard functions including sine, square, triangle, and ramp as well as other signals like psuedorandom noise and DC signals. This function generator can generate signals from -5 V to +5 V and uses direct digital synthesis (DDS) to precisely generate waveforms.
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Serial Communications Card
104-ICOM-2S
The Model 104-ICOM-2S Serial Communications Card can be installed in a PC/104 stack and provide effective communication on long lines in noisy environments. Data lines are opto-isolated from the computer and from each other to assure communication even when large common mode voltages and noise are imposed.
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47~1200MHz FTTH CATV Optic Receiver
H1224
Hangzhou Huatai Optic Tech. Co., Ltd.
H1224, the operating bandwidth of 47 ~ 1200MHz, is a low power, high performance, cost-effective triple play, FTTH CATV optical receiver. Products with high sensitivity optical receiver tube and special low noise matching circuit.Receiving at high optical power can be adjusted by PAD level, played limiting output, so H1224 within a large dynamic range of the received optical power of +2 dBm ~-19dBm, have excellent characteristics.
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Lock-In Voltage Preamplifier
SR550
Stanford Research Systems, Inc.
The SR550 Voltage Preamplifier is designed to work with any SRS lock-in amplifier. Preamplifiers provide gain close to the experimental detector, before the signal-to-noise ratio is permanently degraded by cable capacitance and pickup
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Saluki SE2031 DSP Lock-In Amplifier
SE2031 Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 1 mHz to 10 MHz. With the advantage of the latest digital signal processing technology and high-speed 16-bit ADC, SE2031 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noise. The performance of SE2031 is as good as other lock-in amplifier brands, even better in some certain parameters, such as measurement accuracy, SNR, dynamic reserve. Otherwise, SE2031 integrates some special functions like multiple harmonic measurement, which meets the needs of scientific research and industrial application well.
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Volume Production Oscillators
Volume production oscillators utilize either high performance GaAs Gunn diodes with high Q cavity designs or state-of-the-art FET devices with dielectric resonators to yield excellent phase noise and stability. These oscillators are free running with extremely high frequency and power stability. The oscillators are generally designed and manufactured for fixed frequency applications. However, fine frequency adjustments can be achieved by mechanically tuning the provided self-locking screw. While the below standard models are offered for immediate production release, custom models are also available.
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High-Reliability Voltage Controlled Oscillators
16 Models with Frequency Bands ranging from 10 MHz to 4350 MHz. 0.5" Hermetically Sealed Surface Mount Package. 50 Ohm Internal Matching. Designed to meet MIL-STD-883 and MIL-STD-202 Test Conditions. Wide Voltage Tuning Range from 0.5V to 20V. Phase Noise as low as -120 dBc/Hz @ 10 KHz offset. 2nd Harmonics as low as -25 dBc. RoHS and REACH Compliant. All models are EAR99. These products are used in military electronics, SATCOM, test and measurement and wireless communications.
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PXI Power Supplies
PXI is an abbreviation for PCI eXtensions for Instrumentation. It is based on the PCI architecture, a commonly-used standard in personal computers, with an industrial connector. A second connector adds instrumentation-specific signals to the backplane, like clock and trigger signals. Applicos is providing PXI modules that intend to close a gap in the portfolio of the big players such as National Instruments, Keysight, ADlink and others. We focus on special functions and above average performance. Also in PXI the Applicos culture yields excellence on noise, accuracy and other analog properties.
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NI-9215, ±10 V, 100 kS/s/ch, 16-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
783739-01
±10 V, 100 kS/s/ch, 16-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module - The NI‑9215 performs differential analog input. The module contains NIST-traceable calibration, a channel‑to‑earth ground double isolation barrier for safety and noise immunity, and high common-mode voltage range. It is also offered in two connectivity variants: 10‑position screw terminal or BNC.
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Coaxial Test Contactor
ICON
The ICON™ test contactor designed specifically for maintaining the native impedance of the device-under-test (DUT) through the contactor to the test system, maximizing high frequency power transfer by minimizing signal reflections (Return Loss).The metal body is a Faraday shield/cage, which reduces cross talk (electromagnetic radiation) the primary cause of signal jitter. Along with this, the aluminum body blocks both static and non-static external electric fields (random noise). Featuring exceptional DC and RF performance and excellent thermal management.
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RF Upconverters
SignalCore offers traditional multi-stage and single-stage RF upconverters, and Direct IQ modulators that feature low phase noise, high dynamic range, wide bandwidth, and continuous tuning. SignalCore RF upconverters are compact and built for mechanical robustness and ruggedness. Applications include various test and measurement applications such as those in point-to-point radio, wireless communication, ATE, and software-defined radio. All products are provided with a Graphical User Interface (GUI), driver, and API for easy programming control.
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Chromatic Dispersion Measurement System
CD500
The CD500 is a chromatic dispersion measurement system for use in fiber and cable manufacturing, designed to produce accurate measurements quickly and with confidence. The CD500 uses a temperature-stabilized solid-state monochromator driven by a digitally derived RF frequency signal that allows the wavelength to be set and maintained with picometer precision and stability. Using a digital approach and employing the latest in DSP technology, the CD500 yields fast low noise drift-free results.
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Optical Probes - Low Bandwidth
P6701B/P6703B
Depend on Tektronix to provide you with performance you can count on, and industry-leading service and support.- Broad Wavelength Response 500 to 950 nm or 1100 to 1700 nm- High-bandwidth DC up to 1.2 GHz- High Gain 1 V/mW- Low Noise <11 pW/√Hz- Probe Connects to DPO7000*1 and DPO/DSA/MSO70000*2Series- SONET/SDH and Fibre Channel Reference Receiver Performance
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Infiniium MXR B-Series Real-Time Oscilloscopes
MXR B-Series
Keysight's Infiniium MXR B-Series oscilloscopes have hardware-accelerated, automated analysis tools, extra-low, front-end noise, and uncompromised performance so engineers can test faster, shorten time to market, and design without compromise using an oscilloscope that delivers dependable results.
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sbRIO-9253, Non-Enclosed, 50 kS/s/ch, 24-Bit, 8-Channel C Series Current Input Module
787433-01
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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NI-9253, 50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module
785989-01
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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6 GHz ProLink Differential Probe with Adjustable Tip
D600A-AT-PL
- Choice of 4 GHz or 6 GHz bandwidth models- Up to 5 Vpk-pk dynamic range with low noise- ±3 V offset range- Low loading and high impedance for minimal signal disturbance- Ideal for DDR2, DDR3, LPDDR2- Deluxe soft carrying case- Innovative QuickLink architecture- Wide variety of tips and leads-- Solder-In Lead-- Optional Positioner (Browser) Tip-- Quick Connect Lead-- Square Pin Lead-- HiTemp Solder-In Lead
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ATE System Power Supplies
N8700 Series
The Keysight N8700 Series ATE system power supply delivers high current with low noise in a compact two unit package. Airflow moves front to back, so no additional space is required above or below the power supply in your automated test equipment (ATE) rack. This series of programmable power supplies sources up to 3300 or 5200 W. Get output voltages from 8 to 600 V and 5.5 to 400 A.
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PH / ORP Monitor / Controllers
720 Series II
The advanced “isolated” circuitry of the 720 Series II pH/ORP Monitor/ controllers guarantees accurate and reliable measurements — completely eliminating ground-loop and noise issues. The unique sensor preamp allows for longer distances between the sensor and the Monitor/controller without the loss of accuracy or reliability.
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Broadband Planar Tunnel Diode Detectors
KRYTAR Broadband Planar Tunnel Diode Detectors are specifically designed for use in today's high-performance microwave instrumentation and systems. KRYTAR detectors are designed for such applications as power measurements, analyzing radar performance, leveling pulsed signal sources, AM noise measurements, system monitoring and pulsed RF measurements in ultra-broadband and mm-Wave applications.
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Workstation For Acoustic & Vibration Engineering
imc WAVE 2022
imc WAVE is a modular, powerful software platform for noise and vibration analysis (NVH analysis). From noise investigations in road tests to structural analyses on the test bench and vibration tests on machines: with different imc WAVE analyzers, you can evaluate a wide range of applications without having to be an expert yourself. In this way, you can also easily and reliably obtain standard-compliant analysis from the fields of noise and sound power analysis, structure analysis as well as the evaluation of the analysis of vibrations and of rotating machines. imc WAVE guides you step by step through the settings, from device configuration to calibration and measurement. In the end, you evaluate your data professionally and then receive a report that is ready to print. The modular software specializes in the following topics.
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PROBE MICROPHONE ICP
377B26
Open Circuit Sensitivity (at 250 Hz)Frequency Range (+2.2/-4.9 dB)2 to 20000 HzLower Limiting Frequency (-3 dB)Inherent Noise<45 dB(A) re 20 Pa Dynamic Range(3% Distortion Limit)EnvironmentalTemperature Range (Operating)-40 to +158 F-40 to +70 C[5]
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NI-9237, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module
779521-01
50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module - The NI‑9237 includes all the signal conditioning required to power and measure up to four bridge-based sensors simultaneously. The module provides strain or load measurements with zero interchannel phase delay. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety. You can program the NI‑9237 for use with half-bridge and full-bridge sensors with built-in excitation. The four RJ50 jacks provide direct connectivity to most torque or load cells and offer custom cable solutions with minimal tools.
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Noise Receiver Modules And Noise Switching Modules
MT7553 Series
Noise Parameters are the non-50Ω extensions of Noise Figure, and are an important modeling and model validation tool to understand how a device-undertest’s performance changes as a function of source impedance. Noise Parameter measurements are typically performedusing a Vector Network Analyzer (VNA) to measure the S-Parameters of the DUT, and a Noise Analyzer (either Noise Figure Analyzer NFA or Spectrum Analyzer SA) to measure the noise power of the DUT. Noise parameters are calculated from a combination of knownsource impedances, S-parameters and noise powers.
