1_4_1_Exkurs_Instrumentenverstaerker

Components used

SPICE netlist

* **************************************************
* Generated from CircuitSim Schematic
**************************************************
R_R11 N1 N11 100k
R_R12 N6 N13 100k
R_R31 N1 N2 100k
R_R32 N6 N7 100k
R_R41 N2 0 100k
R_R42 N7 N8 100k
R_Rg N11 N12 200k
X_U1 N9 N11 N1 Param3TVIRTUAL_5a7fc2f7 IOS=0 AVOL=200k BW=100meg VOS=0 IBS=0 RI=10meg VOMP=12 VOMN=-12 RO=10
X_U2 N10 N13 N6 Param3TVIRTUAL_5a7fc2f7 IOS=0 AVOL=200k BW=100meg VOS=0 IBS=0 RI=10meg VOMP=12 VOMN=-12 RO=10
X_U3 N2 N7 N8 Param3TVIRTUAL_5a7fc2f7 IOS=0 AVOL=200k BW=100meg VOS=0 IBS=0 RI=10meg VOMP=12 VOMN=-12 RO=10
V_Ue1 N9 0 DC 1 AC 0 0 distof1 0 0 distof2 0 0
V_Ue2 N10 0 DC -2 AC 0 0 distof1 0 0 distof2 0 0
E_VP1 VP1 0 N8 0 1
E_VP2 VP2 0 N1 0 1
E_VP3 VP3 0 N6 0 1
V_Irg N12 N13 0

**************************************************
* Models and supporting definitions follow
**************************************************
.model Resistor_1d9c8cf9a r(tc1=0 tc2=0 tnom=27)
.model Param3TVIRTUAL_5a7fc2f7_D1 d(n=0.1)
.subckt Param3TVIRTUAL_5a7fc2f7 in_pos in_neg out params: VOS=0 IBS=0 IOS=0 AVOL=200K BW=100M RI=10M RO=10 VOMP=12 VOMN=-12

    * Input Stage: Rin, Ibias, Voffset
    VOS in_pos 4 {VOS}
    Ibias1 4 0 {IBS}
    Ibias2 in_neg 0 {IBS}
    IOS 4 in_neg {IOS/2}
    Rin 4 in_neg {RI}

    *Middle stage: Gain, frequency, voltage limiting
    Bgain 0 6 I={v(4,in_neg)*AVOL/1meg}
    R1 6 0 1meg
    CP1 6 0 {AVOL/(2*3.141592653589793*1meg*BW)}


    Vpos 9 0 {VOMP}
    Dlimit_pos 6 9 Param3TVIRTUAL_5a7fc2f7_D1

    Vneg 10 0 {VOMN}
    Dlimit_neg 10 6 Param3TVIRTUAL_5a7fc2f7_D1


    *Output stage: Buffer, output resistance
    E2 7 0 6 0 1
    Rout 7 out {RO}
.ends

**************************************************
* Simulation settings
**************************************************
.options rshunt=1e12
.tran 200p 1e12 0 200p
.save V(VP1) V(VP2) V(VP3) I(V_Irg)
.end