Preamplifiers
Detect and strengthen a signal prior to greater amplification.
See Also: Amplifiers, RF Amplifiers, Current Amplifiers, Audio Amplifiers, Voltage Amplifiers, Transconductance Amplifiers, Op Amps, Klystron, Instrumentation Amplifiers, Distribution Amplifiers
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Preamplifiers
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The primary function of a preamplifier is to extract the signal from the detector without significantly degrading the intrinsic signal-to noise ratio. Three basic types of preamplifiers are available: the current-sensitive preamplifier, the parasitic-capacitance preamplifier, and the charge-sensitive preamplifier. ORTEC manufactures a preamplifier to fit your detector, your application, and your budget.
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Preamplifiers
AH-series
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A broad mix of in-line preamplifiers and accessories are offered to enhance hydrophone measurements by increasing the gain, preserving the flatness response, extending the dynamic range, and minimizing reflections.
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Preamplifiers
LNA Series
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Low noise amplifier with 12.5 dB of gain covering the nominal frequency range 1 MHz to 3 GHz and can be used in the range from 200 kHz to 4 GHz. With its high gain and low noise figure, it will significantly increase the sensitivity of virtually all spectrum analyzers and other RF measuring instruments. All measuring instruments have a 'noise figure', which is a measure of how good the instrument is at measuring low level signals, the lower this figure, the better, although the lowest signal level will still be governed by the measurement bandwidth. A typical spectrum analyzer may have a noise figure of 20 dB or more, whereas a typical receiver may have a noise figure of 10 dB. The preamplifier has a noise figure of typically 4 dB, significantly enhancing the low level performance of such instruments, enabling signals that were previously masked by noise to be seen.
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(70×90×12mm) Single Channel Gain Block MSA Compact Pre-Amplifier EDFA Module
SPA4300-GM02
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Hangzhou Huatai Optic Tech. Co., Ltd.
SPA4300-GM02 is a gain block optical Pre-amplifier EDFA module, adopts 70×90×12mm MSA compact package. It is featured with high reliability, superior optical performance and compact reasonable configuration by Industrial standard, creating the most flexible and variable low-cost amplifier in the market. This module is suitable for multiple network application, especially the application that requires 40GB/S transmission speed.
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Instrumentation
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Unholtz-Dickie designs and manufactures a variety of transducer signal conditioners, accelerometers, remote charge preamplifiers, vibration monitors & limiters, transducer testers, buffer amplifiers and other special purpose instrumentation accessories for vibration testing.
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2-Ch Sensor Amplifier
SR-2210
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The SR-2210 sensor amplifier accepts constant-current line drive sensors and connects the signal to analyzers and recorders that would not otherwise be compatible with constant-current sensors.The units connects directly with BNC connectors to ONO's model MI-3111 microphone preamplifiers and NP-3000 series of accelerometers.With compact, light-weight, battery operation, it can save for preparation of measurement.
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Energy Probes
RjP-700 Series
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The RjP-700 Series probes are designed to measure lower pulse repetition rate, longer duration pulses - up to 1msec pulse width at a maximum rep rate of 40Hz. This allows for measurement of pulsed flashlamps and other sources not possible with other probes. The combination of large area detector surface and long pulse width allow for measurements up to several Joules total energy. Integrated preamplifiers allow for longer probe-to-instrument cable runs, useful for manufacturing environments.
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Bias Tees for Radio Amateurs
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Bias Tee for remote power supply of preamplifiers and converters via the coaxial cable.
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Noise Figure Analysis Using NI PXI RF Test Instruments
NI-RFmx Noise Figure
Test Instrument
Measure noise figure, gain, Y-factor, effective temperatures, hot and cold power, and moreOptimized calibration and measurement routines for multi-DUT test using Y-factor and cold sourceSupports the PXIe-5668R 26.5 GHz VSA, the PXIe-5698 26.5 GHz preamplifier, and VSTsDesigned for use with industry-standard noise sources such as the Noisecom NC346 Series
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(70×90×15mm) C-Band DWDM Full Function Pre EDFA Module
WPA4300-FM02
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai Huatai WPA4300-FM02 series with 70 × 90 × 15mm MSA compact package, is a digital control circuit with DWDM full function preamplifier module. Products using the most excellent optical performance, the most advanced electronic control technology and comprehensive software features, has a wide operating wavelength range, low noise, excellent gain flatness characteristics and transient characteristics. Suitable for C-Band 44 or 88 waves DWDM system applications.
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Pre-Amplifiers
MPR, MDA series
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MPR, MDR series provides low noise, high gain and wideband to improve dynamic range for emission testing. We also offer customized model for variable requirments.. Example 30M-1000MHz with band-pass filter Amprifier unit for connecting antenna directly
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Current Sensors
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Our current sensors were designed for a simple, customer-specific construction of niobium wire wound magnetometers, gradiometers or preamplifiers for small current or voltage signals.
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Charge Sensitive Preamplifier-Discriminator
A101
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Model A101 is a hybrid charge sensitive preamplifier, discriminator, and pulse shaper developed especially for instrumentation employing photomultiplier tubes, channel electron multipliers and other low capacitance charge producing detectors in the pulse counting mode. The A101 is widely used in laboratory and commercial applications for mass spectrometers, laboratory and research experiments, aerospace instrumentation, medical electronics, and electro-optical systems.
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Low Noise Prepolarized Microphone
378A04
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The 378A04 is a matched system that is comprised of a high sensitivity microphone and a low noise preamplifier that contains a built-in filter that enables the free-field response to remain flat over a wide frequency range. The system requires a minimum of 4 mA and measures to 6.5 dBA (5.5 dBA typical) within a cost efficient, prepolarized (0V) design. PCB's model 378A04, the industry's first prepolarized low noise microphone and preamplifier system allows you to measure extremely low amplitudes. In the past this was only possible with externally polarized solutions. With a typical noise floor of 5.5dBA, this microphone system delivers all of the benefits commonly associated with prepolarized systems.
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(40×70×12mm) Single Channel Small Form Factor Gain Block Pre-Amplifier EDFA Module
SPA4300-GM01
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Hangzhou Huatai Optic Tech. Co., Ltd.
SPA4300-GM01 is a single channel Gain Block Pre-Amplifier EDFA module , adopts subminiature 40×70×12mm compact package, combined with artistic package and best optic performance, creating the best flexible and variable low-cost amplifier in the market. This module is suitable for multiple network application, especially the application that requires 40GB/S transmission speed.
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TURBO-TENNA 137 MHz Weather Satellite Antennas
WX-137 SERIES
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The WX-137 series of antennas are marine-grade 137 MHz circularly polarized antennas designed to receive weather satellite images from the polar orbiting NOAA and Meteor satellites. Manufactured from stainless steel and ABS plastics, the assemblies are sealed and designed to survive marine service, although they may be used on land as well. Each antenna is available with or without a gasfet preamplifier which provides about 16 dB of gain and is physically located adjacent to the antenna.
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Programmable Current Preamplifier
99539
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The Model 99539 is a modular, multi-channel current preamplifier with parallel, logic level, gain control input. It consists of circuit boards which plug into a 3 1/2" high by 19" wide rack chassis.
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USB Preamplifier, 100 MHz to 26.5 GHz
U7227C
Amplifier
The U7227C, 100 MHz to 26.5 GHz USB preamplifier is designed to bring reliable gain and low noise figure to measurement systems improving the overall system performance and reduce systematic errors; a total solution to the X-Series signal analyzers to perform noise figure measurement
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Low Noise Preamplifier
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The UPL-3001 preamplifier is a high performance solution for the low-noise amplification of ultrasonic signals. Designed for signals ranging from 0.5 to 300 MHz, the small and lightweight, rugged unit is perfect for remote applications. This is ideal for P&C, TT, AUT or TOFD inspection.
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Read-Write Analyzer Systems
4000 TDMR Series
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For Two Dimensional Magnetic Recording (TDMR). The 4000 Series RWA Systems support UP12 preamplifier and the next generation front end cartridge/head amplifier designs on Guzik spinstands. Previous generation of head amplifiers together with UP11M are also supported by RWA-4000 TDMR Systems in one channel mode.
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Microwave Wideband High-power input type PIN Receivers
MR30 (30KHz~100GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR30 series microwave wideband optical receiver, adopts waveguide intergrated PIN photodetector. Within 40KHz~100GHz bandwidth, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue and digital wideband microwave application. MR30 series PIN photodetector products have unsurpassed high-power handing capability. In system application, they can pre-amplify the received optical power by EDFA, favorable responsibility, with high voltage out, avoiding the need for electrical amplification. They are suitable for testing and application in microwave opto-electronics and high speed lightwave area as well as 40Gb/s (OC-768, STM-256) high-speed communication system.
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Multi Channel Analyzer
BOSON
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Baltic Scientific Instruments, Ltd
Spectrometric device BOSON acquires and displays spectra with overlapping by energy up to 1000 timesNo resolution deterioration at operation in the beginning of spectrum energy rangeStable operation with preamplifiers of TPR type with output voltage swing up to +/- 10 V and reset duration up to 250 usAutomated P/Z adjustmentImproved dead time correctionSoftware-based spectrum stabilizationSetting and control of all parameters using colour LCD display with touch screenComplete remote control of Boson via software on PCAuto BLRAnalogue time dependent shapingSpectrum stabilizationDead time correctionOperation with preamplifier TPR
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C-Band DWDM Pre-Amplifier EDFA (WPA-C)
HWA4300 (With SNMP)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HWA4300 series, is designed for C-Band 44 waves or 88 waves DWDM system design Pre-Amplifier gain flatness. Products using the most excellent optical performance, the most advanced electronic control technology and comprehensive software features, has a wide operating wavelength range, Low noise, excellent gain flatness characteristics and transient characteristics.
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Components for System Integration
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Bh offers a wide range of accessories to improve your photon counting experiment such as experimental control modules, optomechanics or implantable fiber probes for in-vivo applications. For PMTs and MCPs we offer different preamplifiers and a variety of routing devices for multi-detector operation. For a perfect SYNC signal, trigger modules and a SYG are available.
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Current Preamplifier
1211
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The model 1211 Current Preamplifier was designed to provide all of the features required of a modern laboratory preamplifier. It measures cur rents with full scale sensitivity ranging from 10 to 10 amperes.
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Hydrophone
RESON TC 4035
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The TC4035 is a miniature probe hydrophone specifi cally designed as a standard reference hydrophone for sound measurements in the frequency range 100 to 500kHz. The hydrophone incorporates a 10dB low-noise preamplifier, which includes an insert calibration circuit for convenient electrical testing of the hydrophone condition. The pre-amp has a drive capability for cable length up to 25 meters.
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X-Ray And Gamma Detector Systems
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The XR-100CR is a new high performance x-ray detector, preamplifier, and cooler system using a thermoelectrically cooled Si-PIN photodiode as an xray detector. Also mounted on the 2-stage cooler are the input FET and a novel feedback circuit. These components are kept at approximately -55 °C, and are monitored by an internal temperature sensor. The hermetic TO-8 package of the detector has a light tight, vacuum tight thin Beryllium window to enable soft xray detection. The XR-100T-CdTe represents a breakthrough in xray detector technology by providing “off-the-shelf” performance previously available only from expensive cryogenically cooled systems. The XR-100-CdTe is also suited for measuring gamma rays.
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(40×70×12mm) Full Function Single Channel Small Form Factor Pre-Amplifier EDFA Module
SPA4300-FM01
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Hangzhou Huatai Optic Tech. Co., Ltd.
SPA4300-FM01 is a full-function single channel Pre-Amplifier EDFA module with digital control electronics, adopts subminiature 40×70×12mm compact package, combined with artistic package and best optic performance, creating the best flexible and variable low-cost amplifier in the market. This module is suitable for multiple network application, especially the application that requires 40GB/S transmission speed.
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Noise Figure Analyzer, Multi-touch, 10 MHz to 26.5 GHz
N8975B
Low-Frequency Noise Analyzer
The N8975B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8975B.
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FieldFox Handheld Microwave Signal Analyzer, 32 GHz
N9960B
Signal Analyzer
A lightweight, durable, software-enabled, microwave signal analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
