GENERAL DESCRIPTION
The AD8366 is a matched pair of fully differential, low noise and low distortion, digitally programmable variable gain amplifiers (VGAs). The gain of each amplifier can be programmed separately or simultaneously over a range of 4.5 dB to 20.25 dB in steps of 0.25 dB. The amplifier offers flat frequency performance from dc to 70 MHz, independent of gain code.

FEATURES
   Matched pair of differential, digitally controlled VGAs
   Gain range: 4.5 dB to 20.25 dB
   0.25 dB gain step size
   Operating frequency
      DC to 150 MHz (2 V p-p)
      3 dB bandwidth: 600 MHz
   Noise figure (NF)
      11.4 dB at 10 MHz at maximum gain
      18 dB at 10 MHz at minimum gain
   OIP3: 45 dBm at 10 MHz
   HD2/HD3
      Better than −90 dBc for 2 V p-p output at 10 MHz at
         maximum gain
   Differential input and output
   Adjustable output common-mode
   Optional dc output offset correction
   Serial/parallel mode gain control
   Power-down feature
   Single 5 V supply operation

APPLICATIONS
   Baseband I/Q receivers
   Diversity receivers
   Wideband ADC drivers