THEORETICAL TOPICS
• Ideal operational amplifier
• Concept of common mode and differential
voltage • The negative feedback
• Main operational amplifier linear configurations
• Concept of virtual mass
• Inverting and non‐inverting configuration
• Inverting summing amplifier
• Zero and different from zero level detector
• Differential amplifier
• Integrator and derivator
• 741 operational amplifier
• The meaning of CMRR, Vos and slew rate
• Comparators, ramp and square wave generators
• Comparator circuit
• Transfer characteristics
• Inverting Schmitt trigger
• Square wave generator (astable multivibrator with operational amplifier)
• Ramp generator
• 555 integrated circuit as astable and monostable multivibrator
• Fault simulation
CIRCUIT BLOCKS
• Inverting and non‐inverting operational amplifier
• Operational amplifier parameters: CMRR, slew rate
• Offset voltage reduction, differential amplifier, summing amplifier
• Operational amplifier: integrator and shunt
• Comparator: inverting, non‐inverting, with hysteresis (Schmitt trigger)
• Operational amplifier as astable multivibrator
• Ramp generator
• Timer 555 as astable multivibrator
• Timer 555 as monostable multivibrator
Complete with theoretical and practical manual.
Dimensions of the module: 297x260mm.
OPERATIONAL AMPLIFIERS
The design and construction of electronic circuits to solve practical problems is an essential technique in the fields of electronic engineering and computer engineering.
With this board the students can analyze and test all possible configurations of the operational amplifier 741 from the inverting to the ramp generator and study all its peculiar characteristics as CMRR and Slew rate; they can also check the operation of the integrated circuit NE555 used as stable and astable multivibrator.
