Stable amplification 1001 times chopper amplifier


Posted on Mar 28, 2007

MAX420 is a monolithic chopper OP amplifier supply voltage is 15 V (ICL76s0 supply voltage of i5V), with good input characteristics. Input offset voltage l V.


Stable amplification 1001 times chopper amplifier
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One input drift 0. 02 FtV / oC ', _, input bias current lOpAtr ,, input resistance loloQ, open loop gain isodB, these are 25 C standard parameters, ordinary differential amplifier is not so the parameter value. Instead, it's not very good opening characteristic AC conversion rate of 0. 5V / Us, GB volume of sookHz, the input conversion noise is in DC ~ 10Hz narrowband taken off, the level of 1 - iuv, - , (. ,,, 1 plus low-pass filter for the crossing is a prerequisite.




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