So when you look at a "linear" system something like an RC circuit. The response is exponential and is in fact not linear at all.
So why do we call them linear systems
So why do we call them linear systems
ok um your even more confused this I am.An electronic circuit can be either "linear" or "digital".
The TIMELY response to a voltage step is exponenetial. But this kind of test has nothing to do with "linearity".So when you look at a "linear" system something like an RC circuit. The response is exponential and is in fact not linear at all.
So why do we call them linear systems
agreed:Systems defined by higher order differential equations can also be linear, in the sense that if you double the input you get double the output.
Exactly.An electronic circuit can be either "linear" or "digital".
The difference between analog and digital has almost nothing to do with linearity and what a linear circuit is. Analog indicates that there's infinite resolution (you can go from 0 to 1 and any real number in between, for example), whereas digital relies on your state being zero or one (with ideal state transitions being perfect jumps). Linear circuits ARE generally analog, yes, but not all analog circuits are linear (there are a great many circuits that are nonlinear, such as logarithmic gain amplifiers, the VCO, or the gilbert cell). Equating analog circuits to linearity is an inaccurate comparison.Exactly.
From wikipedia
Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics and analog signals.
@LvW, @Ian0, @hrs, @andrewmm and @ZCochran98 can all make up stuff but, it's as simple as @Audioguru said - there is either digital or analog (also known as linear). "Linear" comes from the fact that transistors need to operate in their non-saturated regions (linear regions) to achieve analog (non-binary/non-digital) transfer functions.
omg lol did you just say that? Actually the other folks who answered are completely correct when talking about the relationship to the input and output from a mathematical perspective. You are completely wrong.Exactly.
From wikipedia
Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics and analog signals.
@LvW, @Ian0, @hrs, @andrewmm and @ZCochran98 can all make up stuff but, it's as simple as @Audioguru said - there is either digital or analog (also known as linear). "Linear" comes from the fact that transistors need to operate in their non-saturated regions (linear regions) to achieve analog (non-binary/non-digital) transfer functions.
You are completely wrong. Of course, there are "analog" parts and circuits which are "non-linear". In fact, there are no parts or analog circuits which are really linear. All these devices show a certain degree of non-linearity.Exactly.
From wikipedia
Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics and analog signals.
@LvW, @Ian0, @hrs, @andrewmm and @ZCochran98 can all make up stuff but, it's as simple as @Audioguru said - there is either digital or analog (also known as linear). "Linear" comes from the fact that transistors need to operate in their non-saturated regions (linear regions) to achieve analog (non-binary/non-digital) transfer functions.
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