Window Comparators

  
In Fig. 104-3(a), when Vin is between reference voltages Vi and Vu, output Vout goes low. If Vin> Vl, IC2 produces a low
Window Comparators - schematic

. Because IC1 outputs low, if V^>VUf both outputs are low and F0ut is low. If Fin < Vl, both IC1 and IC2 are low. Figure 104-3(b) operates the reverse of this; it produces a high when VL




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