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DAC7724: Comparison between DAC8412FPCZ (non TI) and DAC7724N (TI)

Gerald
Genius 9570 points
Part Number: DAC7724

Hi Experts,

Our customer is planning to replace DAC8412FPCZ (non TI) with a TI part- DAC7724N. They have done some preliminary analysis and they could understand that the pin outs are similar and both the selected devices are PLCC packages.

The IC is used in dual supply mode with +/-12V as the VDD and VSS and Vlogic of +5V in their cards. They feel the two IC's are compatible with each other and can be a drop-in replacement. But they want to understand if there are any architecture differences between the two IC's and wants a detailed analysis between the two from us.

Please let me know if it is fully compatible and would want to get confirmation if there is any major impact on HW and SW.

Kindly help us with the best possible analysis, if they can go ahead with the change. Thank you.

Best regards,
Gerald

  • +1
    TI__Mastermind 42163 points

    Hi Gerald, 

    I am not an expert in the DAC8412 device, so I would still recommend reviewing both datasheets in detail to make sure that any differences in the performance specifications that are different. 

    Make sure the reference also falls within the DAC7724 maximum ratings. The other voltages (VDD, VCC, and VSS are fine). 

    It looks like the logic truth tables are exactly the same as well so the software functionality you have for the DAC8412 should also work:

    Double check the timing requirements as they are slightly different. One difference I see is that the DAC7724 has a longer timing minimum for CS to be held low for a read. Everything else looks the same or compatible. 

    They should be able to go through with the change if there are ok with any performance differences and the small timing differences are not violated by the current software. 

    Best,

    Katlynne Jones