Hi, I am working on a non-inverting operational amplifier circuit simulation with LTspice. I am using spice code of opa694 as op-amp but there is something wrong because It gives me approximately 12V as output signal which is too high than expected. When I draw the circuit with voltage dependent voltage source instead of opa694 I took the output voltage as microvolt level which is expected. Might be any problem with this opamp code or something else? I am adding LTspice netlist below. If you please help me, It will be very useful.
* opa694 .asc V1 0 N001 PWL(0 0 10n 2u 20n 0 30n 0) D9 N001 0 D D10 0 N001 D R30 0 N001 200 R31 N003 N004 3.6K R32 0 N003 470 R35 N004 0 100 XIC1 N001 N004 N005 N002 N003 opa694 CD1 N005 0 22nF CD2 0 N002 22nF Vee2 0 N002 {V} Vcc5 N005 0 {V} .model D D .lib C:\Program Files (x86)\LTC\LTspiceIV\lib\cmp\standard.dio .PARAM V=5 .tran 0 300n 0 *.subckt D 1 2 ******************************************* * *PMLL4448 * *NXP Semiconductors * *High-speed diodes * * * * * * * * * * * *VRRM = 100V *IFRM = 450 mA *trr = 4ns * * *Package pinning does not match Spice model pinning. *Package: SOD80C * *Package Pin 1 : Cathode *Package Pin 2 : Anode * * * * *Simulator: PSPICE * ******************************************* *# .SUBCKT PMLL4448 1 2 * * The resistor R1 does not reflect * a physical device. Instead it * improves modeling in the reverse * mode of operation. * R1 1 2 5.827E+9 D1 1 2 PMLL4448 * .MODEL PMLL4448 D + IS = 4.352E-9 + N = 1.906 + BV = 110 + IBV = 0.0001 + RS = 0.6458 + CJO = 7.048E-13 + VJ = 0.869 + M = 0.03 + FC = 0.5 + TT = 3.48E-9 .ENDS * .PARAM E=1000000 .lib opa694.lib * 3 * 2 .backanno .end
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