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DAC7750: Similar function part in TI to compete with DS4422/DS4424

user4979989
Intellectual 2800 points
Part Number: DAC7750
Other Parts Discussed in Thread: DAC43401, DAC53401, DAC7573

Hi team,

May I have your help to propose a similar TI part with DS4422/4424? (2 and 4 channels)

It seems like we only have DAC7750/7760 are SPI interface, do we have I2C interface and similar function solution with DS4422/4424?

Thank you.

Regards,

Allen 

  • 0
    TI__Mastermind 46290 points

    Allen,

    Most of our buffered current output devices are built with Factory Automation and Control PLC or sensor applications where SPI is much more common. Also designed with the ubiquitous 4-20mA output ranges used by those applications.

    The DS4422/DS4424 meanwhile are more purpose-built for power-supply margining or adaptive voltage scaling functions which appear in a variety of applications. Historically low-current output devices have been used for these applications, but it is also possible to use voltage output products to achieve the same result.

    Recently we have released the DAC53401 (10-bit) and DAC43401 (8-bit) single channel voltage output devices with I2C interface and a number of "hooks" that make them more appropriate than your average voltage-output DAC for these margining or AVS applications.

    There is an application note specific to the DAC53401 you can find here: http://www.ti.com/lit/an/slaa887/slaa887.pdf

    As well, there is a general application note on this function available here: http://www.ti.com/lit/an/slyt777/slyt777.pdf

  • 0 in reply to Kevin Duke
    TI__Intellectual 2800 points

    Hi Duke,

    Thank you.

    Customer is looking the DAC7573 (4-ch), I think it is ok to design for voltage margining circuit, correct?

    Regards,

    Allen

  • 0 in reply to user4979989
    TI__Mastermind 46290 points

    Allen,

    There are some purpose-built functions in the DAC53401 family which are not present in the DAC7573 which may impact the performance of the overall solution. There could potentially be other intersection points with a quad-channel product in the future, but I would suggest we take such a discussion offline. I cannot see your myTI.com information for whatever reason, so I will need you to email me to facilitate that discussion.