[quote user="Chuck Davenport"]
Hello Ki,
Based on your description, I believe you are looking for a device with a DAC which would provide the analog output you are needing. The Hercules line of MCUs do not support analog/DAC outputs as we only have ADC's (analog to digital inputs) implemented on the Hercules devices. If you do not need ISO61508 levels of safety, I would suggest you investigate one of the other lines of MCUs offered by TI such as Tiva, MSP430, or C2000. I am fairly certain that the MSP430 and C2000 lines offer solutions with analog outputs so these might fit your needs. Other options would be to implement teh DACs outside of the MCU in which case the Hercules MCUs might work for you.
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Thanks a lot for your reply. May I ask what is ISO61509 level of safety, what is that for? Sorry that I don't have much experience on that :)