Citation link:
Authors:
Shoikova, Elena Dikova; Шойкова, Елена Дикова; Pandiev, Ivailo Milanov; Пандиев, Ивайло Миланов
Title:
Improved spice macromodels of instrumentation amplifier with PSRR effects
Date of Issue:
2007
Is Part of:
Proceedings of the Technical University – Sofia, 57(2), 2007, pp. 7-15
Publisher:
TU - Sofia
Identifiers:
1311-0829 [issn]
Type:
Article
Language:
eng
Abstract:
An improved SPICE based macromodels of monolithic instrumentation amplifiers (in-amps) is presented in which the power supply rejection ratio (PSRR) frequency effects are modelled. The simulation models are developed through modifying the existing macromodels employing the mechanism of controlled sources and subcircuits. The macromodels are independent from actual technical realizations and are based upon compromises regarding the representation of exact circuit structures in the models. The equivalent circuits of the models principally contains linear passive RLC elements and controlled voltage and current sources. Model parameters are extracted for the IC AD8221 from Analog Devices and INA114 from Texas Instruments as examples. Simulation results and selected diagrams are compared with the manufacturer’s data.
Description:
Reviewer prof. d-r. Marin Hristov. - Formulas, tables, schemes - References, pp. 14-15
