I'm thinking of building a digital voltmeter using a MCP3550 22-bit sigma-delta ADC interfaced with a PIC and a LCD display.
How complex this could be?
I know that I need a stable reference voltage beside theese chips.
My consideration is about the noise.
Is it possible to build souch a device in DIY conditions ( only 2 sided PCB, limited resolution on routing), and not destroy the initial precision of the ADC by surrounding noise?
I have low expirience on ADC-s beyond 12-bits.
How complex this could be?
I know that I need a stable reference voltage beside theese chips.
My consideration is about the noise.
Is it possible to build souch a device in DIY conditions ( only 2 sided PCB, limited resolution on routing), and not destroy the initial precision of the ADC by surrounding noise?
I have low expirience on ADC-s beyond 12-bits.
Last edited: