德国FEMTO公司是一个研发并生产低噪声放大模块的。FEMTO公司具有很宽的产品范围，包括：电流放大器、电压放大器、锁相放大器和光电接收器等。

Specifications	Test Conditions      Vs = ± 15 V, Ta = 25°C, System Impedance = 50 Ω
Gain	Gain Values 20, 30, 40, 50, 60 dB Gain Accuracy ± 0.1 dB (between Settings) ± 1 dB (Overall) Gain Flatness ± 0.15 dB
Frequency Response	Lower Cut-Off Frequency 1 kHz Upper Cut-Off Frequency 1.2 GHz Upper Cut-Off Frequency Rolloff 40 dB/Oct.
Time Response	Rise / Fall Time (10% - 90%) 380 ps Group Delay 2.2 ns
Input	Input Impedance AC 50 Ω Input Impedance DC 100 kΩ Input VSWR (@ 20 dB Gain) 1.12 : 1 (f < 1 GHz) 1.7 : 1 (f < 2 GHz) Input VSWR (@ 30 – 60 dB Gain) 1.2 : 1 (f < 1 GHz) 1.75 : 1 (f < 2 GHz) 50 Ω Noise Figure 3.0 dB (@ 60 dB Gain) 3.5 dB (@ 30 – 50 dB Gain) Equivalent Input Voltage Noise 450 pV/√Hz (@ 60 dB Gain) 500 pV/√Hz (@ 30 – 50 dB Gain) 1/f-Noise Corner 40 kHz
Output	Output Impedance 50 Ω Output Power P1dB 13 dBm (@ 100 MHz) 10 dBm (@ 500 MHz) Output Peak-Peak Voltage for linear Amplification 2 V (@ 100 MHz) 1.7 V (@ 500 MHz) Output VSWR 1.77 : 1 (f < 1 GHz) 2.0 : 1 (f < 2 GHz) Third Order Intercept Point IP3 21 dBm Reverse Isolation 80 dB Dynamic Range (w/o Average) 70 dB (P1dB – Min. Detectable Signal)
Monitor Output	Monitor Output Gain 1 Monitor Output Voltage Range ± 10 V Monitor Output Current ± 25 mA Monitor Output Bandwidth DC ... 100 kHz
Digital Control	Control Input Voltage Range Low: - 0.8 ...+ 0.8 V High: + 1.8 ... + 12 V
Power Supply	Supply Voltage ± 15 V Supply Current + 350 / -100 mA Stabilized Power Supply Output ± 12 V / max. 100 mA, + 5V / max. 50 mA
Case	Weight 510 gr. (1.2 lbs) Material AlMg4.5Mn, nickel-plated
Temperature Range	Storage Temperature -40 ... +100 °C Operating Temperature 0 ... +60 °C
Absolute Maximum Ratings	Signal Input Power + 13 dBm (f > 1 kHz) Signal Input DC Voltage ± 16 V Signal Output Reverse Power + 20 dBm Signal Output Reverse DC Voltage + 20 V / - 12 V Control Input Voltage + 16 V / - 5 V Power Supply Voltage ± 17 V

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