TK-EA02-OPAMsConfg

* Aquí se presentan dos configuraciones de OPAMs más complejas: 1) Amplificador inversor aditivo. Vout= -Rf x (V1/R1+V2/R2+...+Vn/Rn) Ej Vout= -3k x ( 1v/1k+2v/2k+3v/3k)= -6v 2) Amplificador diferencial. Vout= V2 x (1+R2/R1) x ((R4/(R3+R4)) - V1 x (R2/R1) R1 se conecta entre (-) IN opma a V1 R2 se conteta entre Vout a (-) IN R3 se conecta entre (+) IN a V2 R4 Se conecta entre GND y (+) IN SI R1=R3 y R2=R4. La ecuación se reduce a : Vout= (R2/R1) * (V2-V1) OPAMs que se pueden usar: LM 741, LM 358, LM 324. * Here are two confirgurations of OPAMs a little more complex: 1) Additive inverse amplified Vout= -Rf x (V1/R1+V2/R2+...+Vn/Rn) Ej Vout= -3k x ( 1v/1k+2v/2k+3v/3k)= -6v 2) Differential amplifier Vout= V2 x (1+R2/R1) x ((R4/(R3+R4)) - V1 x (R2/R1) R1 is connected between (-) IN Opam to V1 R2 is connected between Vout and (-) IN R3 is connected between (+) IN Opam to V2 R4 is connected between GND and (+) IN If R1= R3 and R2= R4 Then equation is reduced to: Vout= (R2/R1) * (V2-V1) OPAMs that can be used: LM 741, LM 358, LM 324.

published 2 years ago