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OPA1652: BODE plot - Balanced input OPA1652 TINA TI

Part Number: OPA1652
Other Parts Discussed in Thread: TINA-TI,

Hello I need some help.

I design a amplifier with filter for preamplifier.

Id like to see the bode plot, but it is only possible when the input is only signle.

I attached my TINA-TI file. please calculate the bode plot from 20Hz to 22000Hz

Thank you!


  • Hello Younggi,

    You can change the filter circuit such that one input generator can be configured to provide a differential output by using two voltage-controlled, voltage sources (VCVS) as seen in the circuit below. The Bode plot is shown with your circuit as an example of the simulated filter response.

    I have modified your OPA1652 TINA file to use this dual VCVS configuration and the new .TSC file is attached. 

    Regards, Thomas

    Precision Amplifiers Applications Engineering