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超低噪聲電流放大器LCA-2-10T

超低噪聲電流放大器（Ultra Low Noise Current Amplifier）

產品型號：LCA-2-10T

產品品牌：德國FEMTO

儀器簡介：

 Bandwidth and Frequency Response

Naturally, high gain amplifiers cannot achieve the speed of models with low gain. Due to the special FEMTO amplifier design measurements of extremely low currents can be performed with the LCA-2-10T in real-time. Signal changes can be monitored with a rise time down to 200 ms. For applications where response time is of lower importance the built-in signal filters can be used to further improve the sensitivity and noise performance of the measurement setup. Three filter settings allow adaptation to many different signals and measurement tasks.

Applications

Sensitive Current and Charge Measurements

Spectroscopy

Scanning Microscopy of Very High Impedance Samples (STM, conductive AFM)

Photodiode Amplifier

Characterization of Electronic Components

Preamplifier for Oscilloscopes, A/D Converters, Digital Voltmeters etc.

技術參數：

Extremely Low Input Noise Current of 0.18 fA/√Hz

Variable Gain 1012 V/A and 1013 V/A

Variable Low Pass Filter 2 Hz, 0.3 Hz and 0.1 Hz

Optimized for DC Measurements

主要特點：

High Gain for Low Noise Performance

In order to attain an extremely low noise performance very high gains were chosen for the LCA-2-10T amplifier. A real transimpedance gain of 1012 V/A enables the extraordinary low input noise current of 0.18 fA/√Hz. An additional amplifier stage with a variable voltage gain of x1 and x10 was added to offer greater flexibility for varying applications and signal amplitudes. Like this an unparalleled sensitivity is achieved allowing real-time current measurements from 1 fA up to 10 pA without the need for further signal averaging.