IFD:Analog Circuits and Interfaces/introduction to electronics: Difference between revisions

* once you provide a voltage divider circuit in the feedback loop of an voltage follower, you are able to control the gain of the output port. This means the voltage of the output can be a scaled version of the input, either attenuating or amplifying the input voltage. Depending on whether the voltage divider is applied on the positive or negative input, the output is an inverted or non-inverted version of the input voltage. The two basic building blocks are shown below.

[http://www.falstad.com/circuit/circuitjs.html?cct=$+1+0.000005+10.20027730826997+50+5+43%0Ag+-448+112+-448+128+0%0Av+-448+112+-448+32+0+1+100+1+0+0+0.5%0Ax+-411+-158+-192+-155+4+18+The%5CsNon-Inverting%5CsAmplifier%0Aa+-304+0+-192+0+8+15+-15+1000000+0.1842741783321202+0.18429444849173673+100000%0Aw+-192+0+-160+0+0%0A207+-160+0+-112+0+0+output%0Aw+-192+0+-192+-64+0%0Aw+-304+-64+-304+-16+0%0Aw+-448+32+-448+16+0%0Ar+-288+-64+-208+-64+0+10000%0Aw+-288+-64+-304+-64+0%0Aw+-208+-64+-192+-64+0%0Ar+-448+-64+-304+-64+0+1000%0Aw+-448+16+-304+16+0%0Ag+-448+-64+-448+-32+0%0Ax+-365+72+-168+75+4+12+Gain%5Cs%5Cq%5Cs1%5Cs%5Cp%5CsR2%5Cs/%5CsR1%5Cs%5Cq%5Cs1%5Cs%5Cp%5Cs10k/1K%5Cs%5Cq%5Cs11%0Ao+1+64+0+4098+5+0.1+0+2+1+3%0Ao+5+64+0+4099+20+0.00009765625+1+2+5+3%0A Non-Inverting Opamp]