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plz,somebody help me with this problem..

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hanifmoallem

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hi
i have sinusoidal voltage @200khz 2 v peak-peak
i want to amplify it in 4 mode:
first with unity G1.
2nd with G2
third with G3
finally with G4& G4>G3>G2>G1.
do anybody know IC that have this application.
i examine some DVGA but .....
plz help me.it is my university project
 

Search for Variable Gain Amplifiers or Programmable Gain Amplifiers.

Analog Devices has a lot of those, with analog or digital control of the gain you desire.

www.analog.com

You can order samples for free :D

Hope it helped
 

i know but the product bandwidth of this IC are about 40 or 200Mhz.
i want the better way .
 

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