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ADA4938-1 single-ended input to differential output power setting

Category: Hardware
Product Number: ADA4938-1


I want to get differential output from 2.4Vpp input and ask whether any components need to be modified or corrected. 

Best Regards,


Parents Reply
  • Hi,

    The 27.2 ohms is the thevenin equivalent of the source and the termination resistance on the other side of the input. It is what the amplifier sees at that node. It is important that the resistors that the input of the amplifiers are seeing is well-matched to avoid offset and gain errors. You can actually combine Rg and Rs to simplify your circuit even more. But again make sure that components on both sides are well-matched to avoid errors. 


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