Proper design of bypass capacitance in wideband operational amplifiers

Wideband operational amplifiers are essential in all signal acquisition and signal manipulation applications. Wide bandwidth operational amplifiers can accept a wide range of analog input frequencies and provide a wide range of outputs. However, improper use of bypass capacitance can degrade the noise and stability performance of wideband amplifiers causing the correct output to be accompanied also but adjacent random outputs, or noise; which can quickly deteriorate the signal to noise ratio. A detailed study on the proper use of bypass capacitance in wideband amplifiers follows with the derivation of a series of design formulas