Devices that include invertersamplifier, are widely used in everyday life and production. Schemes using this element serve to amplify / attenuate analog signals, are used in many household appliances: tape recorders, televisions, radios, etc. In production, the inverting amplifier is widely used in control circuits, protection or control of the operation of various units and mechanisms. It is indispensable for many devices that work in environments where maximum performance is required. Good performance has made it a key element in many electronic circuits. The device is compact, has built-in protection against overloads and operates in a fairly wide temperature range.
Unfortunately, in practice the work of the devicediffers from ideal. The main problem is the drift of the output signal in the vicinity of zero. This occurs when the device is unbalanced or unstable, or when the temperature of the device changes.
Good performancehas an inverting operational amplifier. This is a modern small-sized device, assembled according to certain principles. It is widely used in amplifying cascades of various purposes. In particular, he showed himself well in the devices controlling the electric drive. The operational amplifier, which is used in the creation of this device, has a high gain, which makes it possible to realize the boldest ideas. Also note the high input and low output resistance of the device.
A special place is occupied by the measuring amplifier. It implements the classical subtraction / summation scheme, it can be assembled on the basis of an operational amplifier.
Despite the emergence of digital devices,Operational amplifiers continue to be actively used in the design of various circuits. The main criteria for this are the following: high reliability in operation, simplicity in installation and repair, low cost of the device.