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THS4520: Common Mode with single 5V supply

Hans
Genius 12865 points
Part Number: THS4520


Hello Team,

does the CM voltage shift accordingly to +1.2V and +4.25V if I use a 5V single supply instead of +/-2.5V?

I think the opamp doesn't care, correct? Or do I really need the circuit shown in figure 63, THS4520 data sheet? This circuit shows more how to convert a single ended into a differential signal, correct?

Thanks and Best Regards,

Hans

  • 0
    TI__Genius 15975 points
    Hi Hans,

    Yes, the CM voltage will shift accordingly to +1.2V and +4.25V if you use a 5V single supply instead of +/-2.5V.

    I think the Figure 62 in the THS4520 datasheet is more relevant in-terms of converting a single ended signal to differential signal on a single 5V supply. You would need the circuit in Figure 62 so that the input common-mode voltage is within the limits while operating the device on single 5V supply for DC coupled application.

    Best Regards,
    Rohit