Operating amplifier tester

The bachelor's thesis tries to describe the evolution of the device designated for testing of the operational amplifier 1458. The evolution is associated with theoretical preparation useful for future application of obtained knowledge. This knowledge is presented by measuring methods which are suitably chosen and by choice of parts. Consequently, particular coplexes join together and the conception of future operational amplifier 1458 tester is created. The conception of tester in logically connected blocs form leads to creation of electrical scheme and also to smooth transition from theoretical part to practical application of knowledge. The tester is designed as a digital device. The microcontroller becomes the principal control component. The microcontroller defines accurately the final function of device. Tha last part of bachelor's thesis describes the tester manufacturing. The conclusion respresents the summary of knowledge and results of bachelor´s thesis. Functional device, which is the result of bachelor´s thesis, detects the operational amplifier defect in 2 levels - the gain fault and the defect of overcurrents. The tester identifies explicitly whether tested operational amplifier 1458 is defective