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Altera_Forum
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15 years ago

High analog input for DE1

Hi Doe's anybody knows how can analog signal that is higher than 3.3V be connected to the FPGA input? (without additional HW beside the DE1). Thanks Eyal
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi

There is a technic to perform ADC on FPGA (Sigma Delta converter) but I need something else.

I need to receive digital input of 5V or higher (digital signals from various boards). I don't need analog input (sorry for misleading).

Do you know if it possible to inject 5V to the FPGA input?

Eyal