|Autors: Pandiev, I. M.|
Title: BEHAVIORAL MACROMODELING OF VOLTAGE FEEDBACK AMPLIFIERS
Keywords: analog circuit design, voltage feedback amplifier, behavioral modeling, simulation
Abstract: This paper presents a new voltage feedback amplifier macromodel at behavioral level. It accurately models basic differential-mode and common-mode electrical characteristics, the input offset voltage and current, the differential-mode and common-mode amplification, the input voltage noise, the output voltage swing, short-circuit current and the input and output impedances. For creating the model, simplification and build-up techniques known from modeling operational amplifiers have been adapted. Model parameters are extracted for the OP177F from Analog Devices as an example. To confirm the validity of the proposed macromodel, simula- tion results are compared with the manufacturer’s data and with the behavior of the SPICE-based macromodel OP177F/AD from the standard library. The proposed be- havioral macromodel leads to a low analysis time and with higher accuracy.
Вид: статия в списание, публикация в реферирано издание