High-Speed Operational Amplifier with Nonlinear Transient Correction Circuits in the Input and Intermediate Stages
Dmitriy V. Kleimenkin, Nikolay Nikolayevich Prokopenko, Vladislav E. Chumakov, Marsel Sergeenko · 2023
Circuitry techniques are considered that provide an increase in the maximum output voltage slew rate of operational amplifiers in the structure of embedded microelectronic systems for various purposes, containing in their structure a cascode input stage with a common-mode servo circuit and an intermediate stage based on a " folded" cascode. The results of computer simulation of the op amp are presented, showing that the introduction of two nonlinear corrective circuits into the original circuit increases SR by more than 5 times, and the use of additional differentiating correction circuits in the input stage of the Op-Amp increases its limiting values of SR by more than 10 times to the level of 4000 V / µs.