Simple Voltmeter schematic using Maxims ADC with LED driver

  
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Using MAX1496 an ADC with LED drivers, you can make your own 3 1/2 digit voltmeter with just a handful of components. It even has external/internal Vref, HOLD and PEAK as well as 200mV, 2V rangs..
Simple Voltmeter schematic using Maxims ADC with LED driver - schematic




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