400MHz Receiver using Analog Device's VGA
The following receiver uses an LNA from MAXIM and a VGA from ANALOG DEVICES for a 45dB stage @ 400MHz. This circuit will recieve levels lower than -100dBm and amplify them using the VGA. Also the AD8318 will detect the output and control the output of the VGA. This circuit can be used as an IF stage for high frequency (microwave) receivers.