GENERAL DESCRIPTION
The AD8368 is a variable gain amplifier (VGA) with analog linear-in-dB gain control that can be used from low frequencies to 800 MHz. Its excellent gain range, conformance, and flatness are attributed to the Analog Devices, Inc., X-AMP® architecture, an innovative technique for implementing high performance variable gain control.

FEATURES
   Analog variable gain range: −12 dB to +22 dB
   Linear-in-dB scaling: 37.5 dB/V
   3 dB bandwidth: 800 MHz @ VGAIN = 0.5 V
   Integrated rms detector
   P1dB: 16 dBm @ 140 MHz
   Output IP3: 33 dBm @ 140 MHz
   Noise figure at maximum gain: 9.5 dB @ 140 MHz
   Input and output impedances: 50 Ω
   Single-supply voltage from 4.5 V to 5.5 V
   RoHS-compliant, 24-lead LFCSP

APPLICATIONS
   Complete IF AGC amplifiers
   Gain trimming and leveling
   Cellular base stations
   Point-to-point radio links
   RF instrumentation