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VoltmeterFrontEnd DualChannels

oihdesigns

A small, open hardware DMM

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Main components

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Part NumberDescription
MAX1683IC REG CHARGE PUMP 2VIN SOT23-5
LM4040DBZ-2.52.500V Precision Micropower Shunt Voltage Reference, SOT-23

VoltmeterFrontEnd DualChannels schematic

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VoltmeterFrontEnd DualChannels board layout

VoltmeterFrontEnd DualChannels PCB render

Top PCB
Bottom PCB