Applying a simple RC compensation network to the STAB pin as optionally depicted in Figure 9-1 enables the end user to optimize the phase and gain margin of the system's stability.

The addition of this RC compensation network introduces 2 poles and 1 zero to the system. Firstly, a low frequency pole is present which can be approximated in more detailed analytical analysis.

The compensation pole frequency, f_p(COMP), is approximated using Equation 14.

where

• C_OTA = 100pF (typical sim)

The compensation zero frequency, f_z(COMP), is approximated by Equation 15.

The open loop gain A_OL is approximated by Equation 16.

where

• g_m(OTA) = 5mS (typical sim)
• R_OTA = 220kΩ (typical sim)