GENERAL DESCRIPTION
The AD8264 is a quad, linear-in-dB, general-purpose variable gain amplifier (VGA) with a preamplifier (preamp), and a flexible differential output buffer. DC coupling, combined with wide bandwidth, makes this amplifier a very good pulse processor.
   
FEATURES
    Low noise
        Voltage noise: 2.3 nV/√Hz
        Current noise: 2 pA/√Hz
    Wide bandwidth
        Small signal: 235 MHz (VGAx); 80 MHz (output amplifier)
        Large signal: 80 MHz (1 V p-p)
    Gain range
        0 to 24 dB (input to VGA output)
        6 to 30 dB (input to differential output)
    Gain scaling: 20 dB/V
    DC-coupled
    Single-ended input and differential output
    Supplies: ±2.5 V to ±5 V
    Low power: 140 mW per channel at ±3.3 V
   
APPLICATIONS
    Multichannel data acquisition
    Positron emission tomography
    Gain trim
    Industrial and medical ultrasound
    Radar receivers