Pasternack has introduced a new line of broadband log video amplifiers that cover multi-octave bandwidths from 0.5 GHz to 18 GHz. This new series includes five models in which four are Successive Detection Log Video Amplifiers (SDLVA), and one is Detector Log Video Amplifier (DLVA). They offer a wide input dynamic range, high signal sensitivity, fast recovery times, and excellent temperature stability. These log amplifiers are used to measure widely varying signals at high frequencies in applications where rapid and precise tracking is required across the entire frequency band. They can be used in radar and EW systems for direction finding and power monitoring, and also in laboratory measurement and test equipment as well as telecommunications and data communications systems.
Signals with high density pulses, narrow pulse widths and large amplitude variations are compressed into an output video voltage response that increases linearly with increasing input power. The new logarithmic video amplifiers utilize GaAs semiconductor technology which is beneficial for high speed applications while maintaining flatness and accuracy throughout the desired frequency band. These log amplifiers can process up to 75 dB of dynamic range and have log linearity that ranges from ±1 to ±2.5 dBm. The log slope ranges from 20 to 50 mV/dB and they also boast fast recovery times ranging from 40 to 150 nanoseconds. The 50 ohm hybrid circuit assemblies are enclosed in rugged metal packages with SMA connectors. They are highly reliable and designed to meet MIL-STD-202F environmental conditions.
The series consists of the following amplifiers: PE15A2000, PE15A2001, PE15A2002, PE15A2003 and PE15A2004.
