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DAC081C081: May DAC081C081 can support I2C in and output 25KHz square waveform output?.

Chen Bogey8
Mastermind 9990 points
Part Number: DAC081C081
Other Parts Discussed in Thread: DAC081S101

Hi Sir 

May DAC081C081 can support I2C in and output 25KHz square waveform output?.

                                             Bogey

  • 0
    TI__Genius 14220 points

    Hi Chen,

    Thank you for your query. The settling time of DAC081C081 is 4.5us max and the I2C frame length will be < 35us at 1MHz clock frequency. This will give an I2C update rate a bit higher than 25kHz. But the problem is that getting a 1MHz clock frequency in I2C can be a challenge if there are multiple devices on the bus. It is a good idea to go for an SPI device for your requirement. For example, you can use DAC081S101.

    But if you want a short answer, it is possible to get 25kHz output from this part.

    Hope that answers your question.

    Regards,

    Uttam Sahu

    Applications Engineer, Precision DACs