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1. Re: DAC
devendra.gajjar Jun 5, 2014 1:52 AM (in response to manuel.julian.moron)i have same problem if you get any hint please help me also
i dont get perfect 3.3 and 0 voltage on analog pin by using DAC
actually when i enter 0 offset i its function { DAC8_1_WriteBlind(BYTE bOutputValue);} it should give me 0 volt output but it give 0.38 volt and when i set 254 offset it gives me 2.95 volts,it should give me 3.3 volt
i am using this chip on 3.3 voltage.. -
2. Re: DAC
devendra.gajjar Jun 5, 2014 2:07 AM (in response to manuel.julian.moron)i think you need to select
ref mux =(Vdd/2)+/-(Vdd/2)
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3. Re: DAC
user_14586677 Aug 18, 2014 7:07 AM (in response to manuel.julian.moron)Do you have OpAmp Bias andA_Buff_Power, global resources, set
to high power ? The CM range of analog amps is affected by their
bias. Datasheet covers this in specs.
Also depends on what part you are using. See V swing analog buffer
below.
http://www.cypress.com/?rID=2746 AN13666
Regards, Dana.