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DAC with an integrated EEPROM or AWG IC

Leonardo Ramalho
Prodigy 45 points
Other Parts Discussed in Thread: DAC8830

Hello everybody,

Does TI have any kind of DAC with integrated EEPROM?

Or any kind of Arbitrary Waveform Genetor IC?

I am working in an application that requires a digital periodic signal to be converted to analog.

Like in the following, where the signal has N samples:

x1,x2,x3, ...,xN, x1,x2,x3...,xN,x1,x2,x3...,xN,x1,x2,x3...xN,x1,x2,...etc

The N samples could be saved in this IC (with SPI, I2C,  or other interface, parallel or serial), and the IC would be responsible to transmit the samples and repeat them like listed above.

I would like to use a sampling rate higher than 500 KHz.

I would greatly appreciate any help or suggestion.

Leonardo Ramalho

  • 0
    TI__Genius 10615 points

    Hi Leonardo,

    Long story short. No, we do not have any DACs that include EEPROM or any device that would do this.

     

    Having said that, it is possible to do this with an MCU and one of our unbuffered DACs. Take for example the DAC8830, this is an unbuffered DAC with a 1us settling time, with an SPI interface that will allow you to continously update the DAC. So in this case the MCU would be responsible for storing and communicating the codes real-time. I understand that this is not as convinient as having the intergrated EEPROM, but is this something that you might be interested in doing?

    I recommended the DAC8830, but there are other device that may better suit your application.

    What is your target resolution?

    What is your output voltage requirement?