English

6

Not applicable.

After the course the student is able to:
- design a simple analog system (trained on analog circuitry for a switching power supply source controller)
- understand, explain and perform design and analysis of accurate analog integrated circuit (precise operational amplifier, precise voltage reference, precise current reference)
- design, analyze and optimize analog integrated circuit with regard to low noise requirements
(Emphasis will be placed on practical skills (engineering calculation, verification simulation).

As the minimum, the knowledge on the Bachelor´s degree level is requested. Students should be able to explain and work with the basic electrical engineering principles and laws, in particular the theory of circuits (circuit variables, Ohm's law, Kirchhoff's laws). The prior completion of the course AIO (design and analysis of current mirrors, operational amplifiers, voltage bandgap references, etc.) is also supposed, or eventually, appropriate good knowledge of the problematics.

Not applicable.

Techning methods include lectures and numerical laboratories including computer simulations.

- max. 30 points for two written tests during semester
- max. 70 points for the final exam (written test + oral correction)
Requirements for completion of a course can be slightly updated by a regulation issued by the responsible lecturer at the start of the course.

1) PWM OSCILLATOR CONTROLLER BLOCK

- BG reference
- Current reference
- Vcc clamp (parallel controller)
- V-> I converter with thermally stable offset
- Double-ramp oscillator with VCO characteristics
- Vcc reset
- Vcc management (UVLO circuits)
- Error circuits


2) THE BASIS OF THE PRECISION CIRCUITS DESIGN

- The main concept of the precise design
- Basic equations for error calculation in analog circuits
- Method of Monte Carlo
- Precise transistor pair
- Accurate current mirror
- The precise differential stage (MOS / bipolar, resistive/active load)
- Accurate two-stage operational amplifier
- Error Calculation using the match nomogram



3) NOISE

- Definition of noise density and integral noise value and their relationship
- Correlated and uncorrelated noise contribution
- Noise characterization of active element
- Resistor noise and BJT noise
- The equivalent bipolar transistor input noise
- MOS transistor noise, equivalent MOS transistor input noise
- Basic concept of low-noise design
- Designl of a low-noise differential stage (MOS, bipolar)
- Noise of the differential stage with active load


4) DESIGN OF THE PRECISE LOW-NOISE OPERATIONAL AMPLIFIER

- Calculation / simulation of the precise OPAMP minimum offset in MOS and BJT process
- Calculation / simulation of the precise OPAMP minimum noise in MOS and BJT process
- Design of the precise OPAMP second stage (parallel / Miller frequency compensation)
- Calculation of the noise and errors of the OPAMP second stage
- Design of the precise OPMAP first stage
- Frequency compensation, phase margin optimization

Not applicable.

The aim is to provide students with the orientation of advanced design methods of modern analog functional blocks for integrated circuits. Emphasis is put on the design of the precise low noise circuits and the appropriate analysis. Students also learn to work with a professional design environment CADENCE at such a level that they will be able to design and draw a basic analog circuits and simple systems and simulate them using basic types of analysis.

Computer exercises are mandatory. Properly excused absence from seminars can be replaced by appointment with the teacher.

Not applicable.

Not applicable.

Baker, J., R.: CMOS circuit design, layout and simulation, IEEE Press a Wiley Interscience, 2019, ISBN: 978-1-119-48151-5 (EN)
Razavi, B.: Design of analog integrated circuits, 2nd edition, McGraw-Hill, 2017, ISBN: 978-0-07-252493-2 (EN)
Sedra,A., Smith, K.: Microelectronic Circuits - 8th edition, Oxford Univ. Press, 2019, ISBN: 978-0190853464 (EN)
Holberg, D., R., Allen, P., E.: CMOS Analog Circuit Design, 3rd edition, 2013, ISBN: 978-0198097389 (EN)

Not applicable.

39 hours, compulsory