AD8334-EVALZ

ANALOG DEVICES  AD8334-EVALZ  评估板, AD8334 ROHS

The is an evaluation board for evaluating the performance of AD8334 quad channel, ultra low noise variable gain amplifier VGAs. Optimized for ultrasound systems, they are usable as a low noise variable gain element at frequencies up to 100MHz. The AD8334 includes an ultralow noise preamp LNA, X-AMP VGA with 48dB of gain range and a selectable gain postAmp with adjustable output limiting. The LNA gain is 19dB with a single ended input and differential outputs. Using a single resistor, the LNA input impedance can be adjusted to match a signal source without compromising noise performance. The board is shipped assembled and tested, so that user can simply connect an input signal, VGAIN source and a 5V power supply.

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Low power of 145mW/channel

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Wide gain range with programmable postAmp

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Low output referred noise of 48nV/√H

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Active input impedance matching

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Optimized for 10bit/12bit ADCs

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Selectable output clamping level

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Single 5V supply operation