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https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1203264/ina241a-spice-model-does-not-work
当尝试在 Simetrix 中模拟零件时、我得到以下错误：
电路中有错误。 模拟中止
INA241A1.lib (422)：.SUBCKT VBIAS_GEN_INA241A1 VBIAS GND VS GND
***错误***子电路定义中存在重复节点
你好，Paul。
为什么不在 TINA-TI 中仿真 INA241？ Spice 模型针对 TINA-TI 进行了优化。 TINA-TI 极其简单且免费：
https://www.ti.com/tool/TINA-TI
凯
Paul、你好！
这是 Simetrix 和 Cadence/TINA 的语法差异。 似乎两个不同节点的名称不能重复。 通过删除额外的 GND 或将其重命名为其他名称、网络列表中应该可以实现一个简单的修复。 我将进行测试、明天就让您知道。
此致、
彼得
嘿、Paul、
如果你将"GND"的第二个实例更改为其他的(它实际上并不重要你选择什么,我选择了"Vee"),然后模型将在 Simetrix 中工作。
我将为这个模型和另一个具有相同错误的模型修复这个 Simetrix 错误。
尊敬的 Peter：
抱歉、我不熟悉如何修改 SPICE 模型。 在整个模型中都有对 GND 的引用-我需要更改哪些？
.SUBCKT INA241A1-%REF% IN+ IN- VS OUT GND REF1 REF2
＊
.MODEL R_无 噪声 RES (T_abs=-273.15)
C_C10 GND N2880223 1E-15
C_C11 N2880633 GND 1E-15
C_C12 GND N2879943 1E-15
C_C13 N2880405 GND 1E-15
C_C14 GND N2879805 1E-15
C_C15 N2880317 GND 1E-15
C_C16 GND N2879773 1E-15
C_C33 VS_B 0 1E-15
C_C35 N2883225 GND 1E-15
C_C36 VICM_2 GND 2E-5
C_C37 VSENSE_2 GND 5E-5
C_C38 VS_B2 0 1E-8
C_C39 VBIAS GND 2E-5
C_C7 N2881925 GND 1E-15
C_C8 GND N2879341 1E-15
C_C9 GND N2880573 1E-15
C_CC 钳位 GND 202E-9
C_C_VIMON GND VIMON 1E-9
C_C_VIMON1 GND VIMON2 0.01E-9
C_C_VOUT_S GND VOUT_S 0.1E-9
E_E24 N2883509 IN- CMR GND -0.5
E_E25 N2882163 VN CMR GND 0.5
E_E27 N2882177 N2882173 PSR GND 0.5
E_E28 N2883725 N2883719 PSR GND -0.5
E_E3 N2883221 GND 输出 GND 1
E_E34 N2882173 N2882163 RVR GND 0.5
E_E35 N2883719 N2883709 RVR GND -0.5
G_G12 VGROSS GND 钳位 GND -1E-3
G_G15 CLAM_CLAMP GND N2930269 GND -1E-3
G_G16 CL_CLAMP GND CLATW_CLAMP GND -1E-3
G_G36 N2878395 0 VS 0 -1
G_G61 N2878447 GND IN--1
G_G62 VICM GND IN+ N2878447 -0.5
G_G66 ACL GND CL_CLAMP GND -1
G_G67 VSENSE GND IN+ IN--1
G_G79 VS GND VIMON2 GND 1E-3
G_G8 VS_CLP GND N2879341 GND -1E-3
G_G80 REF_B GND Ref1 N2884731 -0.5.
G_G81 N2884731 GND REF2 -1
G_G82 N2881941 VBIAS N2881925 N2883225 -1E-5
G_G83 VBIAS N2883615 N2883225 N2881925 1E-5
G_G84 N2883879 GND VSENSE_2 GND 1.
G_G9 GND_CLP GND N2880573 GND -1E-3
I_IOS IN+ GND DC 50E-9
I_I_Q 与 GND 直流3.2E-3
R_R107 N2878395 0无噪声1.
R_R110 N2878395 VS_B R_noicless 1E-3.
R_R147 N2878447 GND 无噪声1.
R_R148 VICM GND R_无 噪声1.
R_R153 GND VCM_MIN R_无 噪声1E9
R_R154 VCM_MAX GND R_noiseless 1E9
R_R155 GND N2884287 R_无 噪声1.
R_R156 N2883225 N2884287 R_无 噪声1E-3.
R_R157 GND ACL R_无 噪声1.
R_R158 VSENSE GND R_无 噪声1.
R_R160 VS GND 1E8 Tc=0、0
R_R211 N2884731 GND 无噪声1.
R_R212 REF_B GND 无噪声1.
R_R213 ACL N2884563 50K Tc=0、0
R_R214 ACL N2884563 50.03K TC=0、0
R_R215 REF2 REF_MID 50.003K TC=0、0
R_R216 REF1 REF_MID 50.00K Tc=0、0
R_R217 VIMON2 VIMON R_无 噪声100
R_R218 VICM VICM_2无噪声1E-3.
R_R219 VSENSE_2 VSENSE R_无 噪声1E-3
R_R220 VS_B VS_B2 R_noically 1E-3.
R_R221 N2878127 VBIAS R_无 噪声1E-3
R_R222 N2883879 GND R_noiseless 1.
R_R27 GND N2881911 R_noiceless 1.
R_R28 N2881925 N2881911无噪声1E-3.
R_R29 N2879319 VS_B R_无 噪声1E3
R_R30 N2879341 N2879319 R_无 噪声1E-3
R_R31 VS_CLP GND 无噪声1E3
R_R32 N2880557 GND 无噪声1E3
R_R33 N2880573 N2880557无噪声1E-3.
R_R34 GND_CLP GND 无噪声1E3
R_R35 GND VS_CLP R_无 噪声1E9.
R_R36 N2880195 GND 无噪声1.
R_R37 N2880223 N2880195 R_noically 1E-3.
R_R38 N2880633 N2880619 R_noisless 1E-3.
R_R39 GND N2880619 R_无 噪声1.
R_R40 GND GND_CLP R_无 噪声1E9
R_R41 GND N2879019 R_noicless 1E9
R_R42 N2879915 GND 无噪声1.
R_R43 N2879943 N2879915 R_无 噪声1E-3
R_R44 N2880405 N2880391 R_noicless 1E-3.
R_R45 GND N2880391无噪声1.
R_R46 GND N2881027无噪声1E9
R_R49 GND N2878913 R_noiseless 1E9
R_R50 N2879777 GND 无噪声1.
R_R51 N2879805 N2879777无噪声1E-3
R_R52 N2880317 N2880303 R_无 噪声1E-3.
R_R53 GND N2880303无噪声1.
R_R54 GND N2880939 R_noicless 1E9
R_R55 N2879773 VGROSS R_无 噪声1E-3
R_R60 GND N2881961 R_noicless 1E6
R_R61 GND 钳位 R_无 噪声1E6
R_R62 GND VGROSS R_无 噪声1E3
R_R65 GND CLAW_CLAMP R_无 噪声1E3
R_R66 GND CL_CLAMP R_无 噪声1E3
R_R81 GND N2883193 R_无 噪声1E9
R_R82 VIMON N2883193无噪声100
R_R83 GND N2883221 R_noiceless 1E9
R_R84 VOUT_S N2883221无噪声100
R_RLN N2883615 N2882223 R_无 噪声106K
R_RLP N2881941 N2881947无噪声106K
V_VCM_MAX VCM_MAX GND 120
V_VCM_MIN VCM_MIN GND -15
V_V_GRN N2880939 GND -29.5
V_V_V_GRP N2878913 GND 27.1
V_V_ISCN N2881027 GND -25
V_V_V_ISCP N2879019 GND 17.
X_AOL_1 N2881947 N2882223 GND N2881961 AOL_1_INA241A1
X_AOL_2 N2881961 GND 钳位 AOL_2_INA241A1参数：增益=1E-2 IPO=1.62 INEG=-1.62
X_CLAWN GND VIMON2 GND N2880557 CLAWN_INA241A1
X_CLNWP VIMON2 GND N2879319 VS_B CLAVP_INA241A1
X_CLAP_AMP VS_CLP GND_CLP VOUT_S GND N2880195 N2880619 CLAPP_LO_INA241A1
X_CLAW_SRC N2880223 N2880633 CLAW_CLAMP GND CLAW_SRC_INA241A1参数：GAIN=1 IPO=5.42E-2 INEG=-5.9E-2
X_CL_AMP N2879019 N2881027 VIMON GND N2879915 N2880391 CLAMP_LO_INA241A1
X_CL_SRC N2879943 N2880405 CL_CLAMP GND CL_SRC_INA241A1参数：GAIN=1 IPO=1.08E-1 INEG=-1.18E-1
X_DC_REJ_SUB_CMR VICM GND N2877867 GND DC_REJ_SUB_INA241A1参数：DC_REJ=154 R=1
X_DC_REJ_SUB_PSR VS_B GND N2878761 GND DC_REJ_SUB_INA241A1参数：DC_REJ=125 R=1
X_GR_AMP N2878913 N2880939 N2879773 GND N2879777 N2880303 CLAMP_HI_INA241A1
X_GR_SRC N2879805 N2880317钳位 GND GR_SRC_INA241A1参数：增益=1 IPO=3.23 INEG=-3.23
X_H3输出 N2883729 N2883193 GND 08_COMPLETE_A1_H3_INA241A1
X_P1_27 VGROSS GND N2883141 GND P1_INA241A1参数：增益=1 FP=10E6 R=1E6
X_P1_28 N2883141 GND N2883147 GND P1_INA241A1参数：增益=1 FP=11E6 R=1E7
X_P1_29 N2883147 GND N2883153 GND P1_INA241A1参数：增益=1 FP=11E6 R=5E7
X_P1_30 N2883153 GND N2883159 GND P1_INA241A1参数：增益=1 FP=11E6 R=1E8
X_P1_31 N2883159 GND N2930269 GND P1_INA241A1参数：增益=1 FP=11E6 R=1E8
X_PZ1_17 N2886878 GND N2886886 GND GND PZ1_INA241A1参数：增益=1 fp=9K fz=31E3 R=1E4
X_PZ1_18 N2886886 GND N2886892 GND PZ1_INA241A1参数：增益=1 fp=9K fz=32K R=1E5
X_PZ1_19 N2886892 GND N2886898 GND GND PZ1_INA241A1参数：增益=1 fp=9K fz=32K R=5E5
X_U108 REF_B GND N2884927 GND DC_REJ_SUB_INA241A1参数：DC_REJ=115 R=1
X_U113 REF_MID N2881947 GAIN_RES_DRISK_INA241A1参数：G_RES=475.048K 漂移_RES_ROOM=1000 RES_漂 移=5E-4 POL=1
X_U119 N2878127 GND VS_B GND VBIAS_GEN_INA241A1
X_U120 N2884563 N2882223 Gain_Res_Drift_INA241A1参数：G_RES=475.048K Drifter_Res_Room=1000 RES_Drif=5E-4 POL=1
X_U121 N2884927 GND RVR GND P1_INA241A1参数：增益=1 FP=10E6 R=1E6
X_U122 VICM_2 VS_B2 GND IN+ GND IB_VCM_VS_INA241A1参数：M_TR=14.264E-6 M_PRE=0.13E-6 M_POST=0.0035E-6 M_VTR_VS_START=-0.27 M_VTR_VS_END=-0.2428 C_VTR_VS_END=-0.
X_U123 VICM_2 VS_B2 GND IN- GND IB_VCM_VS_INA241A1参数：M_TR=14.264E-6 M_PRE=0.13E-6 M_POST=0.0035E-6 M_VTR_VS_START=-0.27 M_VTR_VS_END=-0.2428 C_VTR_VS_END=-6.6_VS_INDE=-6-DE_INDE=-65_6-CM_INDE_DE_6-DEV_INDEV_REG=1.336-DEG_DEG_DEG_DE_6-DEG_DEG_DEG_DEV-6-DEV_DEG
X_U124 IN+ GND VSENSE_2 IBP_VSENSE_A1_INA241A1
X_U125 IN- GND N2883879 IBP_VSENSE_A1_INA241A1
X_U16 N2886898 GND N2886904 GND P1_INA241A1参数：增益=1 fp=120k R=1E6
X_U17 N2886904 GND N2886910 GND GND PZ1_INA241A1参数：增益=1 fp=910K fz=2.12E6 R=1E7
X_VCM_CLAMPN N2883725 GND N2884287 GND VCM_MAX VCM_MIN VCM_CLAP_INA241A1
X_VCM_CLAMPP N2882177 GND N2881911 GND VCM_MAX VCM_MIN VCM_CLAP_INA241A1
X_VNOISE N2882149 VN VNOISE_INA241A1参数：nv=62
x_VOS_Drifter N2882149 IN+ VOS_Drifter_INA241A1参数：DC=12.5E-6漂移=250E-9 POL=1
X_ZOUT_DC_SUB5 ACL N2887162 N2886878 N2883729 GND ZOUT_DC_SUB_INA241A1参数：ZOUT_DC=0.09 ZOUT_MAX=300
X_ZP1LIM5 N2886910 GND N2887162 GND GND ZP1LIM_INA241A1参数：增益=1 FZ=2.12E6 FP=1E11 R=1E8 IPS=1.02E3 INEG=-1.5E3
X_ZP1_1 N2877867 GND N2877873 GND GND ZP1_INA241A1参数：增益=1 fp=15K fz=46 R=1E6
X_ZP1_10 N2877885 GND N2877891 GND GND ZP1_INA241A1参数：增益=1 fp=6E6 fz=500K R=5E7
X_ZP1_11 N2877891 GND N2877897 GND ZP1_INA241A1参数：增益=1 fp=10E6 fz=500K R=7.5E7
X_ZP1_2 N2877873 GND N2877879 GND GND ZP1_INA241A1参数：增益=1 fp=6E6 fz=12K R=1E6
X_ZP1_3 N2877897 GND CMR GND GND GND ZP1_INA241A1参数：增益=1 FP=1E7FZ=500K R=1E8
X_ZP1_4 N2878767 GND PSR GND GND GND ZP1_INA241A1参数：增益=1 fp=20E6 fz=2.2K R=1E8
X_ZP1_6 N2878761 GND N2878767 GND GND ZP1_INA241A1参数：增益=1 fp=23K fz=160 R=1E8
X_ZP1_9 N2877879 GND N2877885 GND GND ZP1_INA241A1参数：增益=1 fp=6E6 fz=460k R=1E7
结束 INA241A1
如果我不清楚,我表示歉意。 您只需更改网表第422行的第二个 GND 实例，该实例已在错误消息中报告：
只有一个字你必须改变。 更改后、行422将如下所示：
INA241A1.lib (422)：.SUBCKT VBIAS_GEN_INA241A1 VBIAS GND VS Vee
您可能必须从您的库中删除当前模型、然后使用带有这个单词"fix"的.lib 文件重新导入它。
