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Fast_12_bit_A_D_converter

2014-11-22 19:49  
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Fast_12_bit_A_D_converter
This circuit shows a DAC and comparator that is used with an SAR to form a 12-bit A/D converter. The analog input (0 to +10 V) is applied at the 4805 comparator noninverting input. Both parallel and serial digital outputs are available VREF can be trimmed for zero. Full-scale is trimmed by adjustment of the REF-01.