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ADA4898 in Summing amplifier Mode

Question asked by selvakumar.sonai on Oct 3, 2016
Latest reply on Oct 6, 2016 by rvieja

Dear All,


 I required a 20Vpp (+/-10Vp) from the ADA4898 Amplifier.

 Here with i attached a Simulation Circuit of ADA4898 in inverting summing amplifier.

 Here the input is sine wave with -10Vpp and it is added with DC offset +10V.

 The gain for sine wave input is two and the DC offset input have gain as one.

  I had doubt whether the signal added first then gained by operational amplifier ? or Gained by opamp first then it is added on the output.?


With regards,

Selvakumar s