line driver

{{short description|Type of electrical circuit}}

{{distinguish|text = line drive, a type of batted ball in baseball or softball}}

File:Philips BDP3280-12 - Texas Instruments DRV632-1777.jpg

A line driver is an electronic amplifier circuit designed for driving a load such as a transmission line. The amplifier's output impedance may be matched to the characteristic impedance of the transmission line.

Line drivers are commonly used within digital systems, e.g. to communicate digital signals across circuit-board traces and cables.{{cite book|last1=Bishop|first1=Owen|title=Electronics - Circuits and Systems|date=2011|publisher=Routledge|isbn=9781136440434|page=250|url=https://books.google.com/books?id=PdEsBgAAQBAJ&q=%22line+driver%22+termination+characteristic+impedance&pg=PA250|accessdate=18 April 2016}}

In analog audio, a line driver is typically used to drive line-level analog signal outputs, for example to connect a CD player to an amplified speaker system.