超低噪声电流放大器LCA-2-10T
超低噪声电流放大器（Ultra Low Noise Current Amplifier）
产品型号：LCA-2-10T
产品品牌：德国FEMTO
德國FEMTO 公司是一個世界低噪聲放大模塊的領導者. FEMTO 公司的產品具有很寬的產品範圍包括：電流放大器、電壓放大器、鎖相放大器和光電接收器等。
仪器简介：
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.
技术参数：
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
主要特点：
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.
