**Part Number:**OPA657

**Other Parts Discussed in Thread:**OPA659, TINA-TI, OPA695

Hello

I have studied some papers to understand how I should calculate the phase margin of Amplifiers based on RosenStark method and it was so useful bcoz the common methods failed to calculate the correct PM.

now I want to design a TIA with OPA657 to have the Bessel frequency response.

could you please help me to calculate the phase margin of TIA based on RosenStark method?

Regards