Abstract
New simple and easy methods measuring the parameters of operational amplifiers (OA's) are presented with newly constructed testing circuits and setups. Firstly, it is shown that the transition frequency and dominant-pole frequency are derived from a relaxation or harmonic oscillator in which the OA under test is used as an element of the circuit. Secondly, it is shown that other parameters such as the open-loop gain, the input and output resistance, the input offset voltage, the input bias current, and the input offset current are obtained easily from the new circuits.
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