Elektor Team
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Window Comparator

Many designs call for a window comparator to determine if a voltage level falls within two voltage thresholds. Linear Technology has produced a single chip solution to the problem with their LTC1042 device (www.linear-tech.com/pdf/lt1042.pdf). This versatile chip is very simple to use and just requires an input voltage level to define the centre of the voltage window (potential divider chain RC1/RC2) and another voltage level to define half of the width of the window (RW1/RW2).
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