449-0390/01 – Modern amplifier structures (MZS)

Gurantor departmentDepartment of Theoretical Electrical EngineeringCredits5
Subject guarantordoc. Dr. Ing. Josef PunčochářSubject version guarantordoc. Dr. Ing. Josef Punčochář
Study levelundergraduate or graduateRequirementOptional
Study languageCzech
Year of introduction2006/2007Year of cancellation2007/2008
Intended for the facultiesFEIIntended for study typesFollow-up Master
Instruction secured by
LoginNameTuitorTeacher giving lectures
PUN10 doc. Dr. Ing. Josef Punčochář
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Credit and Examination 2+2
Part-time Credit and Examination 0+16

Subject aims expressed by acquired skills and competences

After completing this course, the student should be able to analyze and construct linear circuits (amplifiers, filters, oscillators) with real active circuit elements: operational amplifier; transconductance amplifier; transimpedance amplifier; current conveyor

Teaching methods


Basic properties of active tripoles(BJT, JFET, MISFET). Description of basic modern op amps function blocks (differential input amplifier, current mirror as an active load, modern complementary follower)-their application in modern amplifier structures (voltage feedback amps - VFA, current feedback amps - CFA, transconductance amps - OTA, VFA based on CFA,current conveyors - CC, etc.) - their basic application circuits.

Compulsory literature:

Punčochář,J.: Operační zesilovače v elektronice. BEN, Praha 2002 (5. vydání) Punčochář,J.: Operační zesilovače - historie a současnost. BEN, Praha 2002 Punčochář, J.: Low-Pass Filters SALLEN and KEY With Real Operational Amplifiers. In elektrorevue (elektronický časopis), 2005

Recommended literature:

Dostál, J.: Operační zesilovače. BEN, Praha 2005 Punčochář, J.: Lineární obvody s elektronickými prvky. Skriptum, VŠB-TU Ostrava 2002 Mohylová, J.: Lineární obvody s elektronickými prvky -Sbírka příkladů, VŠB-TU Ostrava 2002 Vobecký, J. - Záhlava, V.: Elektronika (součástky a obvody, principy a příklady). Grada, Praha 2001

Way of continuous check of knowledge in the course of semester

Verification of study: tests laboratoriesproject Conditions for credit: Student must work out three tests. Student can receive up to 6 points for each of tests. Maximum number of points student can gain through tests is 3 * 6 = 18 points. Student can gain up to 6*2= 12 points from the laboratories.Student can gain up to 14 points from the project. To pass the excercises part of course student has to gain at least 26 points. Student can gain up to 56 points from the final exam (circuit work - 32 points, oral part - 24 points). To pass the course student has to gain at least 51 points.


Other requirements


Subject has no prerequisities.


Subject has no co-requisities.

Subject syllabus:

Lectures: OPA history; tubes, BJT, FET. Basic transistor circuits; current mirror as an active load. Voltage feedback OPA ( VFA; limitation current sources in the input stage). Current feedback OPA (transimpedance - CFA). VFA based on CFA. Linear VFA applications. Linear CFA applications. Nonlinear OPA applications. Principle of OTA, CCII, Northon amplifier. Princip vzorkovacích struktur. Principle of stabilized voltage sources; bandgap reference. Principle A/D and D/A convertors. New amplifiers 1. New amplifiers 2. Exercises: Basic properties of the input OPA differential stage; middle stage - frequency compensation; output follower - classical. CFA input stage; modern follower. Input stage of "VFA based on CFA" - module and phase responses. Operational networks with ideal op amps (inverting, noninverting, integrator, derivator). Examples of operational networks with nonidel OPA. Examples of nonlinear operational networks - rectifier, logarithmic amplifier. Definition and discussion - project. Laboratories: Determination of input offsets (voltage, current) influence on output voltage (small input signals); application of data sheets. Measuring of OPA transient frequency. Measuring of OPA slew rate. Measuring of OPA large - signal bandwidth (output voltage amplitude is parameter). Measuring of feedforward transmission in the 1. order operational network. Current consumption as function of signal frequency and amplitude. Project - discussion about solutions. Projects: EXAMPLE: Analysis of feedforward transmission in the 1. order operational network.

Conditions for subject completion

Full-time form (validity from: 1960/1961 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Exercises evaluation and Examination Credit and Examination 100 (100) 51
        Exercises evaluation Credit 44 (44) 0
                Laboratory work Laboratory work 12  0
                Project Project 14  0
                Written exam Written test 18  0
        Examination Examination 56 (56) 0
                Written examination Written examination 32  0
                Oral Oral examination 24  0
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.ZaměřeníFormStudy language Tut. centreYearWSType of duty
2007/2008 (N2649) Electrical Engineering (2612T015) Electronics P Czech Ostrava 2 Optional study plan
2007/2008 (N2649) Electrical Engineering (2612T015) Electronics K Czech Ostrava 2 Optional study plan
2006/2007 (N2649) Electrical Engineering (2612T015) Electronics P Czech Ostrava 2 Optional study plan
2006/2007 (N2649) Electrical Engineering (2612T015) Electronics K Czech Ostrava 2 Optional study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner