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Good day, everyone. I am designing a differential OTA with common mode feedback(CMFB) and common mode feedforward(CMFF). The schematic can be seen below:
The details of the circuit are the following:
M1-M4: the differential OTA
M5-M8 and M11-M16: the CMFB
M9-M10 and M13-M16: the CMFF
the CMFB: Shunt-Shunt Feedback topology
Since I am new in IC Design, I am having trouble in designing the feedback loop specifically finding the following equations:
1) The loop gain equation
2) The Beta (Feedback Factor)
3) How to transform the common mode feedback itself into a practical shunt-shunt feedback schematic diagram.
4) Finding the Closed-Loop Gain Transfer Function
Can anyone please please help me about this? I am really stuck.
The details of the circuit are the following:
M1-M4: the differential OTA
M5-M8 and M11-M16: the CMFB
M9-M10 and M13-M16: the CMFF
the CMFB: Shunt-Shunt Feedback topology
Since I am new in IC Design, I am having trouble in designing the feedback loop specifically finding the following equations:
1) The loop gain equation
2) The Beta (Feedback Factor)
3) How to transform the common mode feedback itself into a practical shunt-shunt feedback schematic diagram.
4) Finding the Closed-Loop Gain Transfer Function
Can anyone please please help me about this? I am really stuck.
