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build a pin driver circuit by seperated component

Category: Hardware
Product Number: Max9972

Dear Sir/Madam,

I want to expand the drive voltage range to ±5V. But no current pin drver IC suit for this.

Is that possible to build a pin driver circuit by choosing “Analog Multiplexer” and “Amplifier” and "DAC".

Output level want to be ±5V, and drive frequency up to 60MHz.

Thanks a lot

Top Replies

    •  Analog Employees 
    •  Super User 
    +1 verified

    Hi Laofuzi,

    To understand your question better: For example, MAX9979 can do VDL to VDH levels of -2.5V to +7.5V. If I understand correctly: You're asking if there is any device within ADI portfolio that…

  • Hi Laofuzi,

    To understand your question better: For example, MAX9979 can do VDL to VDH levels of -2.5V to +7.5V. If I understand correctly: You're asking if there is any device within ADI portfolio that can do the VDL and VDH levels of -5V to +5V.

    I suppose one could put together a fast level shift circuit to transpose the -2.5V to +7.5V range to -5V to +5V instead. I've shown this in the example circuit below where a high slew rate device is used to create the ~-5V to ~+5V output transitions.

    Ideally, you'd want a very fast slew rate device with supply voltages that can accommodate the +/-5V output range. LT6553 is the one I found that has a model in LTspice (so I chose LT6553 - but you'd want something with a higher supply voltage range). So, the example simulation above is limited in voltage range because of LT6553's limiation.

    Here is the simulation file if you'd like to work with it:
    LT6553 PIN Driver 4_4_23.asc

    If I've not answered your question properly, please let me know.

    Regards,

    Hooman

  • Dear Hooman,

        Thank you very much for your reply.

        This is one of the solution I've been think about. That's a good way to solve my current problem.

         I just still want to build something with some basic component.

         I found there's something called transmission gate. Is there any product of this from ADI?

        Thanks again.

  • Hi Laofuzi,

    Unfortunately I don't have any expertise with Transmission Gates to guide you. Looking on the web, they look to be similar / related to analog switches (but I could be wrong). This probably does not answer your question, but I'm sharing the analog switches / multiplexers Parametric search page (just in case):

    https://www.analog.com/en/parametricsearch/10624#/

    Regards,

    Hooman