Datasheet

2.0 Modes of Operation (Continued)
MODE 3: Highpass, Bandpass, Lowpass Outputs
(See
Figure 11 )
MODE 3a: HP, BP, LP and Notch with External Op Amp
(See
Figure 12 )
DS005645-5
*
In Mode 3, the feedback loop is closed around the input summing amplifier; the finite GBW product of this op amp causes a slight Q enhancement. If this is a
problem, connect a small capacitor (10 pF−100 pF) across R4 to provide some phase lead.
FIGURE 11. MODE 3
LMF100
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