When integrating analog drivers, designers are often faced with unwanted oscillation caused by instability. Apex Microtechnology will share simple techniques for managing closed and open loop gain relationships to maintain a stable circuit.
In this presentation, we will discuss Loop Stability and examine the following issues:
Why capacitive loads create stability problems in standard op amp circuits.
Closed loop gain (1/ß) and open loop gain (AOL) and their relationships to stability.
How capacitors impact the open loop gain (AOL) curve.
Multiple ways to adjust the closed loop gain (1/ß) and the open loop gain (AOL) responses to regain phase margin and stability, along with the advantages and disadvantages of each technique.
