Analog and Digital Ground in 7135 PCB

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3 months 1 week ago - 3 weeks 4 days ago #5 by amplified
Analog and Digital Ground in 7135 PCB was created by amplified
I have to design a PCB layout for a 4.5 digit voltmeter using the ICL7135 chip, and i have problems with the analog and digital ground. Do you know if somebody has made a PCB for this chip?

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Last edit: 3 weeks 4 days ago by delabs.

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3 months 1 week ago #6 by delabs
This thread has been archived here ICL7135 PCB Layout Method



Digital Grounds have Switching Noise or Pulses, Interface Grounds have higher currents. Sensor Low inputs that are not isolated may have potentials and may lift the system ground and also pose hazard. Electrical Earthing and System Grounding are also different things.

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