filtering inverter noise on analog lines

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seyyah

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I have circuit that has an analog output and that analog output is single ended, i mean negative of the analog output is connected to the ground. When an inverter runs with this line connected via a long cable, some noise is conducted through these lines into my circuit. Using a shielded cable mostly prevents the noise but i want to eliminate the noise on the circuit side. Designing the analog output with a different kind of approach may solve the problem but i wonder what can i do in this situation to eliminate this noise and prevent it injecting into the circuit through this line. Thanks.
 

You can try adding a bidirectional filter at the output. (pi or tee RC-filter)

for example **broken link removed**
 

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