Description: Program-controlled amplification in a number of occasions the need, if you use ordinary amplifier, when to change the magnification, you need an external resistor with switching means, each gain in this way requires a different set of resistors, and can therefore only have a limited Several gain, the circuit structure and the switching process is more complicated and slow to switch to use is not easy to switch the resistance of different input impedance of the amplifier can also make a change, thus affecting the accuracy of a current paper introduces a high precision, broadband, Variable gain amplifier AD603, program-controlled amplification of the occasion required, it can show off their capabilities a
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