I have built a few analog filters (LPF, HPF, etc), after the filters, there are some amplifiers, MUX, and it goes to a ADC. For this project I am suppose to have as much of a linear system as possible. So I am wondering how I can measure the phase response of this system (0-60KHz, from the input, which could be a coil or some type of sensor to the ADC) with a 200MHz scope, and some cheap function generators (cannot afford spectrum/network analyzers) so that I can try to build lattice filters or use the DSP afterwards to try and fix the phase response.
Thank you for any advice.