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IC_notch_filter

2017-02-27 09:26  
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IC_notch_filter
This circuit shows an LTC1062 and an LT1056 connected to form a notch filter. Figure 7-17B shows the frequency response for a 25-Hz notch filter using values based on the equations of Fig. 7-17A. The optional R2/C2 at the LTC1062 output is used to minimize clock feedthrough. The 1/(6.28R2C2) value should be 12 to 15 times that of the notch frequency. Linear Technology Corporation, Linear Applications Handbook, 1990, p. AN20-9, -10.