Current Amplifiers
See Also: Amplifiers, RF Amplifiers, Preamplifiers, Audio Amplifiers, Voltage Amplifiers, Transconductance Amplifiers, Op Amps, Klystron, Instrumentation Amplifiers, Distribution Amplifiers
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Variable Gain Amplifiers
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Macom Technology Solutions Holdings Inc.
At MACOM we design, manufacture, and support a broad family of Variable Gain Amplifiers (VGAs) for RF, microwave, and millimeter wave applications. Our VGAs cover frequencies from 50 MHz to 40 GHz and are used in a variety of Network, Commercial and Aerospace and Defense applications. These products are available in industry standard plastic packaging and are designed for both 50 Ohm and 75 Ohm applications.
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Product
1000 Amp High Accuracy Current Probe
HA1000
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The HA1000 is our most accurate current probe. The HA1000 clamp-on current probe measures from 1 to 1000 amps AC.
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Portable Eddy Current Flaw Detectors
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Portable eddy current (EC) flaw detectors inspect metallic parts and perform highly reliable and advanced flaw detection of surface and near-surface defects. Olympus offers portable eddy current equipment to meet a broad range of applications, including the detection of surface or near-surface defects, and the inspection of bolt holes.
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Lightning Current Generator
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Shanghai Guantu Technology Co., Ltd.
The lightning wave impulse current generator is an impulse current generator that generates a simulated lightning current waveform . Its working process is as follows: first, the transformer charges the capacitor bank through the silicon pile, when the charging voltage reaches a predetermined value, the spark gap is triggered, and the capacitor is discharged through the total inductance and total resistance of the circuit. When the resistance is greater than or equal to the critical damping value, a unidirectional impulse current wave is generated in the circuit. When the resistance is less than the critical damping value, an oscillating impulse current wave is generated. The magnitude of the impact current amplitude is related to the circuit parameters. When the capacitance value and charging voltage are the same, the smaller the inductance value, the greater the current amplitude. In order to obtain as much current as possible, a pulse capacitor with a small inductance value is usually selected, and the total length of the connecting line should be as short as possible when arranging the main capacitor, so that the total loop inductance value can be reduced as much as possible.
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Product
Programmable Gain Amplifiers
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Analog Devices programmable gain amplifiers (PGAs) provide excellent gain accuracy, channel-to-channel matching specifications, and low 1 ppm/°C drift. Set your gain with a simple serial or parallel interface from 1 V/V to over 4000 V/V.
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Product
Current Preamplifier
1212
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The Model 1212 Current Preamplifier is designed as a low cost, gerenal purpose, benchtop instrument to provide a high performance detection system for small ac and dc currents. The 1212 operates with a virtual ground at its input which mitigates unpredictable high frequency rolloff due to input cables and stray capacitance.
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Product
Current Probe Calibrator
KSZ
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PMK Mess- und Kommunikationstechnik GmbH
Since Current Probes are often exposed to hard working conditions, a performance check is recommendedbefore every use. These Current Probe Calibrators generate square wave pulses from 0.05 A to 1000 A with an accuracy better 1%. They qualify for calibration and adjustment of Current Probes.
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Product
High-Voltage Isolation Amplifier
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Knick Elektronische Messgeräte GmbH & Co. KG.
Measurement of DC or AC voltages up to () 3600 V and of large DC currents to about () 20 kA with shunt resistor or directly in the device to () 5A DC and AC. Variants with calibrated range selection.
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Product
Current Clamps and Sensors
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Are designed for measuring leakage current diverted towards the earth. It enables the fault to be located or anticipated without disconnecting the equipment linked. It is specially designed to detect low fault currentson power circuits.
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Product
Current Recorders
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A range of Low Cost Voltage, Current and Energy Recorders (Analysers, Analyzers) allows users to check loading and voltage performance, as well as Power and Energy surveys. A great replacement for a Hawk 5000 Meter.
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Product
Split type Pulse Current Sensor
CTF-05T
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MULTI MEASURING INSTRUMENTS Co., Ltd.
For detecting current pulse with open collector output (for power pulse)
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Product
Portable Power Amplifier
PA30Bip
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PA30Bip portable power amplifier is designed with linear amplifier principle. It is very light portable solution with three channels of current output and four channels of voltage output.
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Product
Digital Quad-channel High-frequency Lock-In Amplifier -
eLockIn 204
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Digital quad-channel high-frequency Lock-In Amplifier.
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Product
Ultra-broadband Power Amplifier Systems
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Chengdu KeyLink Microwave Technology Co., Ltd.
Keylink provides ultra-broadband power amplifier systems in rack-mounted configuration with output power capacity from 50-Watt to 2000-Watt for applications including EMC testing, communications, and TWT replacement.
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Zero-Drift Op Amplifiers
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The zero-drift amplifiers from Analog Devices combine both auto-zero and a chopper to self-correct continuously for dc errors over time and temperature, enabling the amplifier to achieve microvolt-offsets and nanovolts per degree Celsius drift. By design, the zero-drift amplifier has no 1/f noise nor does it suffer from long-term drift.
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High Voltage Amplifier
HA-205
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*2500V/uS Super High Speed Model *170Vp-p (±85V DC) *900mAp-p (±450mA DC) *Bandwidth: 3MHz / 100Vp-p *Gain (AMPL): 0~35 (10 Turn VR+SW) *Microprocess Control Protection
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High Current DC Load
3350F Series
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3350F has its own control and display panel, CC/CR/CV/CP/Dynamic modes, 150 sets Store/Recall memory which provides load set-up more efficiently, also can be remote controlled via GPIB, RS232、USB and LAN interface.
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Product
Current Source-Sink D/A Converters
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Analog Devices’ current source D/A converters (DACs) portfolio is ideal for photonics control applications where low current noise density, low dropout voltage, and high power efficiency, in addition to high channel density, is critical to system performance. The flexibility of the configurable current source D/A converter outputs, and 300 mA current delivery, make them suitable for resistive heaters and proportional solenoid drive.
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Slim & High-Performance Charge Amplifier
6001-A, 6002-A
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Measuring a wide variety of vibration: automotive, rail transportation equipment vibration, motor/pump vibration, vibration response during vibration test. Also available for a vibration test device for calibration of equipment.
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Product
RF Benchtop / EMC Amplifier
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RF-Lambda is a world leader in the design and manufacture of high-power, solid-state, broadband AC-powered EMC power amplifiers.
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Product
Bulk Current Monitoring Probe
MP-50
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The Current Monitoring probes may be used whenever RF current measurements are required. Current measurements are made by placing a current carrying conductor within the “sensing” window of the probe and measuring the probe’s output voltage with an RF detector. Calibration of the probe permits the conversion of the voltages measured to current. Current measurements can be made over the frequency range shown in the transfer impedance curve furnished with each probe. There is virtually no loading of the circuit and the technique permits normal operation of the device under test during measurements. The MP-50 can be used for the procedure for clamp injection when the common- mode impedance requirements cannot be met given in chapter 7.4 of IEC/EN 61000-4-6 „Immunity to conducted disturbances, induced by radio frequency fields”. The MP-50 can also be used as current monitor for BCI testing as per ISO11452-4, RTCA/DO-160 section 20, MIL-STD-461 and various automotive standards.
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Product
Low-noise High-voltage Amplifier For Tube-scanners -
HV200/5
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The HV200/5 is a high-precision HV-amplifier designed for the control of tube scanners. It takes three input voltages In X, In Y and In Z (-10 V to + 10 V), amplifies them separately (input gain switches: x1, x2, x5, x10, x20) and adds an offset voltage between -10 V and +10 V. In a 2nd stage, the signal is amplified by a factor of 20. This enables its use as HV amplifier in scanning image acquisition applications, such as STM or AFM, with the capability to shift the scan range in high resolution imaging.
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Product
Mini AC Leakage Current Clamp Tester (CE)
M-140
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*40mmφCT window and ultra compact size.*Least affection from the external magnetic field.*Wide current measurements.(AC0.01mA-300A)
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System Amplifiers
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The perfect combination of high performance, wide bandwidth and low noise
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Current Differential Relay
SEL-587
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Schweitzer Engineering Laboratories, Inc.
The SEL-587 Current Differential/Overcurrent Relay provides protection for any two-input apparatus, such as transformers, motors, generators, and reactors. Apply it for differential and overcurrent protection and use event reports for quick post-event analysis.
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Split Type AC Current Sensor
CTF-16
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*For AC current and power measurements.*Wide measuring range (AC 0.1～100A).*Compliant with RoHS drective.
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Product
ACP Portable Electrical Current Transformer Test,CT/PT Analyzer
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Chongqing Assen Power Equipment Co., Ltd
ACP portable Current transformer analyzer is mainly used for field or lab testing, it can finish the measurements (M) and protection (P) class CT, PT and TYP class CT. Adopt 7 inch touch TFT LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to dump data. The CT PT Analyzer is the most complete and easy-to-use testing system for protection and metering CTs according to IEEE and IEC standards.
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Product
Basic Quad J-Type Analog Thermocouple Amplifier
SEN-30103-J1
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Analog thermocouple amplifier board based on the AD849x from Analog Devices (successor of the AD597). This quad-channel thermocouple board converts the very low voltage signal from a thermocouple to a highly-linear, 0.005V/C output with either 0V or 1.245V offset (both configurations stocked) while removing unwanted noise from the signal. Many supply and output configurations are available with this board, though the PCB was designed with Arduino in mind. Specifically, the output header will plug directly into a standard Arduino Uno or Mega, with a pin-for-pin match for power supply, ground and analog outputs. With a 5V Arduino, temperatures from 0C to 1,000C are possible with the 0V offset board and -249C to 750C with the 1.245V offset board. If using a 3.3V microcontroller (Due, etc), the board must be supplied with no more than 3.3V to avoid damaging the microcontroller. Temperature measurement range is dependent on the supply voltage. It is possible to supply the board with higher voltages to allow temperature measurement over the entire operating range of the K-Type and J-Type thermocouples, allowing use with more capable data acquisition equipment.
