S Selectable Active Input Impedance Matching of 50I, 100I, 200I, and 1kI S Programmable VGA Output Clamp S Integrated Selectable 3-Pole 9MHz, 10MHz, 15MHz, ... (max gain), LNA input to ADC Input 40.4 dB Minimum Gain (Low LNA Gain) VGC+ - VGC- = = -3V (min gain), LNA input to ADC input 1.4 dB Gain Range 38.8 dB AA Filter 3dB Corner Frequency. 12,263 HI, ALL, I want to design a high input impedance LNA, i.e. input 2K about, and the output impedance is 50R. The freq band is from 100M to 600M, How to design it? Many thanks. Best, Tony Liu Jul 19, 2016 #2 D.A. (Tony)Stewart Advanced Member level 5 Joined Sep 26, 2007 Messages 7,067 Helped 1,721 Reputation 3,441 Reaction score 1,725. Input connector / impedance: SMA-female, 50 ohms: Output connector / impedance: SMA-female, 50 ohms: Case: milled aluminium: Dimensions (mm) 56 x 44 x 12: Weight: 74 g (typ.) Description. The KU LNA BB 0012650 A has a bandwidth of 10 MHz to 26.5 GHz and is thus suitable for a variety of applications in the radio-frequency (RF) and microwave.