Wednesday, June 15, 2016

Digilent Pmod ADC

The new Digilent Pmod ADC1 has arrived!

Useful Links:
http://store.digilentinc.com/pmodad1-two-12-bit-a-d-inputs/
https://reference.digilentinc.com/_media/pmod:pmod:pmodAD1_rm.pdf
https://reference.digilentinc.com/_media/pmod:pmod:pmodAD1_sch.pdf

When connecting the Analog Discovery to the chip, refer to the following link:
https://reference.digilentinc.com/_media/analog_discovery:analog_discovery_pinout.pdf

The datasheet for the Pmod explains that the external power provided to the chip must be within 2.35 to 5.25 volts.

Note: The sampling rate is 1 million samples per second and  will provide 12 bits of information through 16 clock cycles.

The issue of testing this chip is the software. It appears that the pins of both the Maxim ADC and the Digilent ADC are the same so the hardware and the pmod interface should be the same as well. However, the maxim code only recognizes the maxim chips and the code on the blog from last summer that allowed us to read in a code using a function generator and the Max11205 does not work either. It is possible that there is an error in the code because the computer crashed the last day and it is possible that the final code was not saved.

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