Design of folded-cascode operational amplifier with 0.6μm CMOS process;

The design of CMOS operational amplifier used for LSI;

Study of method for off-line automatic-test of operational amplifier board in electromechnical computational device;

Then,this paper detailed introduces the features of high-voltage/high-current operational amplifier OPA548,designes hardware circuits of controlling the PEMFC fan with OPA548.

This paper presents a two-stage,compact,power efficient 3V CMOS operational amplifier with rail-to-rail input and output ranges.

Based on SOC application,a Rail-to-Rail CMOS operational amplifier core with constant transconductance is presented.

<Abstrcat> This paper analyses operation accuracy that is influenced by the open input resistance of operation amplifier by means of superposition theorem.

Through anolysis,This chapter prove that the application of operation amplifier in the mechanical equipment velocity regulation system;improve the whole system operformanee make it reach the static and trend fur- get and solve the exact control requirement.

A high precision amplifier circuit which can be used in processing nearly μV signal is introduced, the demand to select an operation amplifier which has high open-loop gain and low drift is discussed, and the problems of temperature and noise influences to the high precision amplifier circuit are explored.

Capacitance Loads of Operational Amplifiers and the Resolvent;

Integral circuits and differential coefficient circuits are usually worked as regulating Spectrometer based on operational amplifiers circuits through feedback network with resistances And capacitances in auto-control system.

In this thesis, analysed and designed the architecture of the new type CMOS Rail-to-Rail operational amplifiers in detail, and successfully designed one of two stage compact CMOS Rail-to-Rail amplifier and the CMOS bandgap reference current source.

A simple equivalent Op Amp model is established,and then the circuit model is transformed into equivalent model based on the methods of bond graph.

An ultra-low voltage two-stage op amp is realized by biasing all the MOSFETs at their bulk terminals.

A new folded differential pair topology based on quasi-floating gate technique is presented, and an ultra-low voltage op amp based on this structure is designed.