VGA Provides 700 MHz Of Bandwidth

The AD8370 differential, digitally-controlled, variable-gain amplifier (VGA) features a 700-MHz bandwidth (-3 dB), making it suitable for use at intermediate frequencies up to 380 MHz. Users can select between two gain control ranges: a high-gain mode adjustable from +6 to +34 dB and a low-gain mode adjustable from -11 to +17 dB. The ranges are selectable via a 3-bit serial interface. Gain can be trimmed with a resolution of