GENERAL DESCRIPTION
The AD8370 is a low cost, digitally controlled, variable gain amplifier (VGA) that provides precision gain control, high IP3, and low noise figure. The excellent distortion performance and wide bandwidth make the AD8370 a suitable gain control device for modern receiver designs.

FEATURES
Programmable low and high gain (<2 dB resolution)
  Low range: −11 dB to +17 dB
  High range: 6 dB to 34 dB
Differential input and output
  200 Ω differential input
  100 Ω differential output
7 dB noise figure @ maximum gain
Two-tone IP3 of 35 dBm @ 70 MHz
−3 dB bandwidth of 750 MHz
40 dB precision gain range
Serial 8-bit digital interface
Wide input dynamic range
Power-down feature
Single 3 V to 5 V supply
APPLICATIONS
Differential ADC drivers
IF sampling receivers
RF/IF gain stages
Cable and video applications
SAW filter interfacing
Single-ended-to-differential conversion