194 lines
4.9 KiB
Plaintext
194 lines
4.9 KiB
Plaintext
* Copyright (c) 1998-2021 Analog Devices, Inc. All rights reserved.
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*
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.subckt MAX44246 1 2 3 4 5
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* CM / DM Input Parameters
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C2 1 4 1.00P
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C3 2 4 1.00P
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R19 1 4 2.00E12
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R20 2 4 2.00E12
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R21 1 2 178G
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C13 1 2 1.5P
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* Differential Stage
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GIVR 0 IVR 14 0 1m
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RIVR 0 IVR 1k Noiseless
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CIVR IVR 0 1.59f
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BCMPI 0 CMpi I=1m*(V(3)+{Vcm_max})
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RCMPI CMpi 0 1k Noiseless
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CCMPI CMpi 0 1n
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BCMNI 0 CMni I=1m*(V(4)+{Vcm_min})
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RCMNI CMni 0 1k Noiseless
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CCMNI CMni 0 1n
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GCMP 0 CMp CMpi 0 1k
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RCMP 0 CMp 1m Noiseless
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GCMN 0 CMn CMni 0 1k
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RCMN 0 CMn 1m Noiseless
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DIP CMp IVR DI
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DIN IVR CMn DI
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CIN IVR CMn 1f
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CIP IVR CMp 1f
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* Noise Stage
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I2 21 20 100
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D1 20 0 DN1
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D2 0 21 DN1
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I3 22 23 1N
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R10 22 0 1k
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R11 0 23 1k
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B_E1 71 14 I=(-5.4N) + V(20) * 1.60 + V(21) * 1.60 + V(22) * 1.60 + V(23) * 1.60 + V(137) +V(118) + V(128)
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R_E1 71 14 1 Noiseless
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I8 0 70 DC 1
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R22 0 70 1 TC=1.00N
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B_E5 1 71 I=V(70)-1
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R_E5 1 71 1 Noiseless
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EG1 VIBIASP 0 62 0 1u
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GB1 1 0 VIBIASP 0 1
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EG2 VIBIASM 0 622 0 1u
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GB2 2 0 VIBIASM 0 1
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I6 0 62 DC 1uA
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VA100 62A 62 DC 0
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R17 0 62A 300 TC=1.18M,91.9U
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I622 0 622 DC 1uA
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VA201 622A 622 DC 300U
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R17A 0 622A REXPM 227.85813
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R16 0 61 1 TC=739U,682N
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G61 3 4 61 0 1
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G60 0 61 TABLE { V(3, 4) } ((0, 0)(1.00,430E-18)(2.7,380U)(5.00,428U)(15.0,429U)(25.0,430U)(36.0,431U))
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* PSRR
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C4 118 110 {C1a_PSRn}
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G4 0 110 3 0 {G1_PSRn}
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R30 110 0 1 Noiseless
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R31 118 110 {R1a_PSRn} Noiseless
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R32 118 0 {R2a_PSRn} Noiseless
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C5 128 120 {C1a_PSRn}
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G1 0 120 4 0 {G1_PSRn}
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R18 120 0 1 Noiseless
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R24 128 120 {R1a_PSRn} Noiseless
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R25 128 0 {R2a_PSRn} Noiseless
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* CMRR
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B_G50 0 130 I=(V(1)+V(2))/2*500n
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C1 137 130x {C1a_CMR}
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G2 0 130x 130 0 {G1_CMR}
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R26 130x 0 1 Noiseless
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R27 137 130x {R1a_CMR} Noiseless
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R28 137 0 {R2a_CMR} Noiseless
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R15 130 0 1Meg Noiseless
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* OP Amp Output Gain / Response
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G3A 0 30A IVR 2 1
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RG3A 30A 0 1
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G3 0 30 30A 0 1
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R3 30 0 1.00K
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G6 0 33 30 0 1m
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R6 33 0 1K
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R7 34 0 1K
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C7 34 0 {Cfp1}
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BSR 0 34 I=Uplim(Dnlim(V(33)*318, {Isink},1m),{Isrc},1m)
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C_30 30 0 1f
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C_33 33 0 1f
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G8 0 37 34 0 1m
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R8 37 0 1K
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C8 37 0 17.6P
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G88A 0 377A 37 0 1m
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R88A 377A 0 1G
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R_GR88A 377A 0 1k
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C88A 377A 0 159E-15
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G888A 0 378A 377A 0 1m
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R888A 378A 0 1G
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R_GR888A 378A 0 1k
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C888A 378A 0 159E-15
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G9 0 38 378A 0 1m
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R9 39 0 1K
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L9 38 39 159N
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R_GRL9 38 39 {1/10.0M}
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G9A 0 38A 38 0 1m
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R9A 39A 0 1K
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L9A 38A 39A 159N
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R_GRL9A 38A 39A {1/10.0M}
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B_E9 0 35 I={1/Zo_dc}*V(38)
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R_E9 0 35 {Zo_dc} Noiseless
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* Output Impedance / Saturation / Current Limit
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B1 0 N001 I=Uplim(Dnlim({G1_Zo}* V(35,57), {Izon}, 25m), {Izop}, 25m)
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R_B1 N001 0 1 Noiseless
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RX 57 N001 {Rx_Zo} Noiseless
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RDUMMY 57 0 {Rdummy_Zo} Noiseless
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R23 50 0 100MEG
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VR15 57 96 0
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R15X 57 96 1G
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F1 0 50 VR15 1
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E3 55 0 VALUE { 0.00 + V(3) * 1 + V(51) * -38.1M }
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E4 56 0 VALUE { 0.00 + V(4) * 1 + V(52) * -28.1M }
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DOP Vsatp 57 DO
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COP 57 Vsatp 1f
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DON 57 Vsatn DO
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CON 57 Vsatn 1f
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GSATP 0 Vsatp 55 0 1k
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RSATP Vsatp 0 1m
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GSATN 0 Vsatn 56 0 1k
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RSATN Vsatn 0 1m
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CSATP Vsatp 0 1n
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CSATN Vsatn 0 1n
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R12 51 0 1k
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R13 52 0 1k
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GD12 50 51 VALUE={( IF( (V(50,51))>0,V(50,51)/0.002,V(50,51)/1E9 ) ) }
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GD13 50 52 VALUE={( IF( (V(50,52))>0,V(50,52)/1E9,V(50,52)/0.002 ) ) }
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G21 3 0 VALUE { 0 + V(51) * 1M }
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G22 0 4 VALUE { 0 + V(52) * -1M }
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R_96_5 96 5 1m
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S_D4 3 5 5 3 ESDO
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S_D3 5 4 4 5 ESDO
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DGP N004 34 DG
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DGN 34 N005 DG
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VGN N005 N008 0
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VGP N004 N007 0
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GRP 0 N007 GRpi 0 1k
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GRN 0 N008 GRni 0 1k
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RRP N007 0 1m Noiseless
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RRN N008 0 1m Noiseless
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RGRP GRpi 0 1k Noiseless
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RGRN GRni 0 1k Noiseless
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CGRN GRni 0 10p
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CGRP GRpi 0 10p
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CGP 34 N007 1f
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CGN 34 N008 1f
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BGRP 0 GRpi I=1m*({Zo_max}* {Iscp}+V(3)+450)
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BGRN 0 GRni I=1m*({Zo_max}* {Iscn}+V(4)-450)
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* Models
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.MODEL DG D(Vfwd=10k Vrev=0 Revepsilon=0.5 Noiseless Ron=1m)
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.MODEL DN1 D IS=1P KF=4.35E-18 AF=1
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.MODEL REXPM RES TCE= 627.12665M
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.MODEL DIDL2 D()
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.MODEL DO D(Vfwd=1k Vrev=0 Revepsilon=0.1 Ron=1m Noiseless)
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.MODEL ESDO SW (Ron=50 Roff=1G Vt=0.5 Vh=-0.1 Vser=0.6 Ilimit=4m Lser=1n Noiseless)
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.MODEL DI D(Vfwd=1k Vrev=0 Revepsilon=0.1 Noiseless)
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.param Vcm_min=-50m Vcm_max=-1.5
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.param beta_Zo=1.13
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.param Rx_Zo = {100 * Zo_max}
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.param Rdummy_Zo = {10 * Zo_max}
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.param G1_Zo={Rx_Zo/(Zo_dc*beta_Zo)}
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.param Zo_dc=100
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.param Zo_max={Zo_dc}
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.param Iscp=30m Iscn=-40m
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.param IZop={1.5*Rx_Zo*Iscp} IZon={1.5*Rx_Zo*Iscn}
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.param Cfp1=7.57m
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.param SRp=4.25 SRn=-4.25
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.param Isrc = {Cfp1 * SRp * 1Meg} Isink = {Cfp1 * SRn * 1Meg}
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.param gain_CMR = {pow(10, (-Rej_dc_CMR/20))}
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.param C1a_CMR = {1 / (2 * pi * R1a_CMR * fz1_CMR)}
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.param R2a_CMR = {R1a_CMR/ ((2 * pi * fp1_CMR * C1a_CMR
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+* R1a_CMR) - 1)}
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.param actual1_CMR = {R2a_CMR / (R1a_CMR + R2a_CMR)}
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.param G1_CMR = {gain_CMR/actual1_CMR}
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.param Rej_dc_CMR=148
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.param R1a_CMR=1G
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.param fz1_CMR=2.2
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.param fp1_CMR=75Meg
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.param gain_PSRn = {pow(10, (-Rej_dc_PSRn/20))}
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.param C1a_PSRn = {1 / (2 * pi * R1a_PSRn * fz1_PSRn)}
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.param R2a_PSRn = {R1a_PSRn/ ((2 * pi * fp1_PSRn * C1a_PSRn
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+* R1a_PSRn) - 1)}
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.param actual1_PSRn = {R2a_PSRn / (R1a_PSRn + R2a_PSRn)}
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.param G1_PSRn = {gain_PSRn/actual1_PSRn}
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.param Rej_dc_PSRn=150
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.param R1a_PSRn=1G
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.param fz1_PSRn=2.5
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.param fp1_PSRn=80Meg
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*
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.ENDS MAX44246 |