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LM239 Single Supply Quad Comparators

2017-08-21 11:09  
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The LM239 was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the LM239 will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators.

LM239 Applications

LM239 Single Supply Quad Comparators

This circuit monitors the voltage of a battery and warns the operator when the battery voltage is below a preset level by turning on an LED. The values are set for a 12V automobile battery. The preset value is 10 volts.