Extract an estimation of the transfer function that was used to create the step response shown below. 900mV- 810mV- 720mV- 630mV- 540mV- 450mV- 360mV- 270mV- 180mV- 90mV- 0mV Oms 1ms 2ms 3ms Can the filter be a 1'st order? 4ms 1. What kind of filter is it? 2. 3. Can it be 2'nd order 4. What is the DC, AC, or Midband gain? 5. What is T? (if one can be found) 6. What is the reasonable range of 3 (if one exists)? 7. What are possible forms of the time domain function? 8. What is the form of H(s) of the system? 5ms