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VoltmeterFrontEnd PlainCircuit

oihdesigns

A small, open hardware DMM

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Main components

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Part NumberDescription
LM4040DBZ-2.52.500V Precision Micropower Shunt Voltage Reference, SOT-23

VoltmeterFrontEnd PlainCircuit schematic

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VoltmeterFrontEnd PlainCircuit board layout

VoltmeterFrontEnd PlainCircuit PCB render

Top PCB
Bottom PCB