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DAC5578: DAC with initial high-impedance output(Hi-Z)

Shenhua Zhang
Prodigy 640 points
Part Number: DAC5578
Other Parts Discussed in Thread: DAC53401

Hi expert,

Customer is seeking for DAC with below sepc:

  1. Channel number : >= 4 channel
  2. Output type: current or voltage both OK, for both type, need DAC can sink or source current. For the current output, the sink/source current need be >= 200uA. For the Voltage output type, the max output voltage need > 1.25V.
  3. Output need be in High-impedance after power on reset
  4. I2C interface
  5. 8 bit would be enough for the margin usage
  6. Low cost

Would you please help recommend?

  • 0
    TI__Mastermind 18546 points

    Hi Zhang,

    DAC8578 meets all criteria except the 3rd one which is output at high impedance after power on reset. After power up you need to program the device to be in high impedance state since all the circuits will be active including output stage after POR event.

    Is this for voltage margining application, since you specifically asked for high impedance at power on ? If that's the case we have some new device coming up which is exactly targeting margining application.

    Can you connect me over email so that  we can share relevant information?

    Regards,

    AK

  • 0 in reply to Akhilesh K
    TI__Mastermind 18546 points

    Hi Zhang,

    We have single channel device which by default High Z on power up, DAC53401, which has NVM as well (targeting voltage margining applications)

    http://www.ti.com/product/DAC53401

    We are developing 4 channel variants as well, for margining applications, please connect us with email, so that we can discuss it further.

    Regards,

    AK