why voltage gain in op amp decrease with the frequency

 

Hello,

Take a look at the following PDF:
sloa011Understanding Operational Amplifier Specifications.pdf

Bertus

 

thanks very much for your help but can you tell me from your understanding of op amp why gain decrease with frequency because i still do not know why
thanks

 

Hello,

Take a look at this PDF:
sboa092a_handbook_of_operational_amplifier_applications.pdf

From page 31 and on is about the frequency dependency.

Bertus

 

Simplest answer: capacitance.

Capacitance exists in chips and current is required to charge and discharge capacitors. Going ever faster finally leads to current starvation.