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THS6212: Can THS6212 be powered by a single power supply?

Jerry Hsueh
Expert 2730 points
Part Number: THS6212


Hi

Can THS6212 be powered by a single power supply?           

If can, what is the maximum voltage of VS+? 

How to connect VS- and GND? Is there a reference design?

Thank you.

Jerry

  • 0
    TI__Mastermind 23226 points
    Hi Jerry,

    Voltage is just a measure of electrostatic potential. If you add 5V or even 500V to every circuit node interfacing with the amplifier, including "GND", it will operate the same. The recommended maximum Vs+ for this part is 28V, so adding 14V to "GND" and every other node is the highest possible single supply operation.

    Best regards,

    Sean
  • 0 in reply to Sean Cashin
    Expert 2730 points
    Hi Sean

    So can use a single power supply? VS+ connects to 28V, GND and VS- to 0V.
    Thank you

    Jerry
  • 0 in reply to Jerry Hsueh
    TI__Mastermind 23226 points

    No, if you add 14V to Vs, you have to add 14V to GND. VS+=28, GND=14V, Vs-=0V.

  • 0 in reply to Sean Cashin
    TI__Genius 15975 points
    Hi Sean/Jerry,

    Yes, it is possible to use the THS6212 with single power supply by connecting VS+ to 28V, GND and VS- to 0V.
    GND pin for the part basically acts as logic control threshold for the bias control pins Bias 1 & 2. Although the GND pin can be connected anywhere to voltages from VS- to (VS+) - 5V, I would recommend it to be connected to the same voltage as VS- for single supply. This just makes using the logic levels for the bias control pins to be easier by referencing the signals with respect to 0V.

    Best Regards,
    Rohit