Design an opamp circuit with this transfer function on 3 voltage inputs

[DaniilMP3]

TL;DR Summary: Build a circuit of given operation on voltages

I'll appreciate any help.
I need to create circuit of this operation on three voltages:

We'll use circuit of voltages summer:

The third term is the integral of U_3, so we'll use integrator:

Than, calculate capacitance:

And on this step we have negative capacitance. Is it possible? Or I did something wrong?
Next, we calculate R_1, R_2.

And here we have -44 kilo Ohm for R_2.

 

[Baluncore]

Welcome to PF.

Is this homework?

The negative sign comes from the simple op-amp based Miller integrator inverts the signal. If you want to cancel the negative sign, you will need to invert the signal in that branch, before or after the integration.

 

[DaniilMP3]

Hi, yes. This is homework. Thank you for your response.

 

[berkeman]

Hi, yes. This is homework.

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