Electronic circuit

The die from an Intel 8742, an 8-bit microcontroller that includes a CPU, 128 bytes of RAM, 2048 bytes of EPROM, and I/O "data" on current chip.
A circuit built on a printed circuit board (PCB).

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow. It is a type of electrical circuit. For a circuit to be referred to as electronic, rather than electrical, generally at least one active component must be present. The combination of components and wires allows various simple and complex operations to be performed: signals can be amplified, computations can be performed, and data can be moved from one place to another.[1]

Circuits can be constructed of discrete components connected by individual pieces of wire, but today it is much more common to create interconnections by photolithographic techniques on a laminated substrate (a printed circuit board or PCB) and solder the components to these interconnections to create a finished circuit. In an integrated circuit or IC, the components and interconnections are formed on the same substrate, typically a semiconductor such as doped silicon or (less commonly) gallium arsenide.[2]

An electronic circuit can usually be categorized as an analog circuit, a digital circuit, or a mixed-signal circuit (a combination of analog circuits and digital circuits). The most widely used semiconductor device in electronic circuits is the MOSFET (metal–oxide–semiconductor field-effect transistor).[3]

  1. ^ Charles Alexander and Matthew Sadiku (2004). "Fundamentals of Electric Circuits". McGraw-Hill. {{cite journal}}: Cite journal requires |journal= (help)
  2. ^ Richard Jaeger (1997). "Microelectronic Circuit Design". McGraw-Hill. {{cite journal}}: Cite journal requires |journal= (help)
  3. ^ Golio, Mike; Golio, Janet (2018). RF and Microwave Passive and Active Technologies. CRC Press. p. 18-2. ISBN 9781420006728.

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