You can set 1 10 100 1000 times magnification programmable amplifier


Posted on Mar 28, 2007

Because the ball Jiu zoom magnification circuit is inverted feedback circuit voltage division ratio of the number of wells by the clamor of 2 to 5 to determine the partial pres


You can set 1 10 100 1000 times magnification programmable amplifier
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sure ratio of the provision, the magnification selected by an external signal number. For example, If you need to d 10, in order to make partial pressure ratio of 1/10 can be used 90kQ: iokQ resistor divider circuit © in this order for each magnification to calculate the number of the circuit diagram parameters are derived. Since the resistor array selected with the adaptation resistor divider, so when the application objects requiring high precision, the circuit can be used Bong port input crown - and D-, Dz input protection circuit is used in the instrument during surgery circuit also without the crown, and D, Dz, in order to change the feedback circuit song dividing ratio to obtain variable gain, should be used before a small input bias current. FET input type OP soul is in the mouth is a variable gain DC amplifier requires offset condensed whole circuit, the choice of the most




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