This part is a kind of semiconductor called AD8264.

Function of this product has DC Coupled VGA And Differential Output Amplifier.

Manufacturers : Analog Devices

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Data Sheet Quad, 235 MHz, DC-Coupled VGA and Differential Output Amplifier AD8264 FEATURES GENERAL DESCRIPTION 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 The AD8264 is a quad, linear-in-dB, general-purpose variable gain amplifier (VGA) with a preamplifier (preamp), and a flexible differential output buffer. D [ ... ]

AD8264 PDF Datasheet Download