Honored ContributorHello Guys,
I am familiar with ADC0809, 0804 chips with 8051 controllers. Similarly i want to try on Cyclone III device.Can it be done? Or i need to change the ADC Chip. For your info my board is custom made. Regards Kiran
Honored ContributorHi,
There is no problem to connect ADC with FPGA, only the interface pins of ADC should match with FPGA I/O Levels. -- Regards, ChanderHonored ContributorYa. i understood. So in this i cant use ADC0809(IO levels are 5V) Can you suggest me IO levels of 2.5-3.3V
Regards KiranHonored ContributorYou Can use Level Translator 5v to 3.3v.
Just see this part no. SN74LVC4245ADWHonored ContributorYa thanks dude. You solved my major problem.But ADC0804 has 8 data lines and 3 control lines.(RD,WR,INTR). So i need to use one more LVC4245. Or is there any more no.of data lines available chip.
regards KiranHonored ContributorSN74LVC4245ADW has 8-bit bidirectional transceiver bus. For select line you have to use another. As ADC select line will be output from FPGA, but 8-bit output Bus of ADC will be Input to FPGA.
Honored Contributor
