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OPA2992: Questions about OPA2992 PSpice Model

Kwonjoon Lee
Prodigy 150 points
Part Number: OPA2992
Other Parts Discussed in Thread: TINA-TI

Tool/software:

Hello.
This is Kwonjoon Lee from Samsung.

I would like to ask about OPA2992 PSpice Model.

(Situation)

1. Currently, I am using LTspice for simulation of OPA2992.
2. The simple analog buffer is designed with the unity-gain feedback configuration (OUT is connected to IN-).
3. VCC = 6V, VEE = 0V, IN+ = 4.3V
4. In a DC operating point simulation of LTspice, voltage of OUT pin of the analog buffer is 3V.

(Questions)

1. I would like to ask if OPA2992 PSpice Model is an accurate model.
2. If there is a problem in OPA2992 PSpice Model, could you provide an accurate model?

Best regards,
Kwonjoon Lee

  • 0
    TI__Guru* 77541 points

    Hi Kwonjoon,

    Kwonjoon Lee said:
    1. I would like to ask if OPA2992 PSpice Model is an accurate model.
    2. If there is a problem in OPA2992 PSpice Model, could you provide an accurate model?

    Yes, the OPA2992 PSpice model should work in LTSpice simulator. If you are not sure, please import the attached *.txt file in the tool and I do not see issues. 

    Fullscreen OPA2992.txt Download 
    * OPA2992
* Created by Carolina Walter; December 14, 2021
* Created with Green-Williams-Lis Op Amp Macro-model Architecture
* Copyright 2021 by Texas Instruments Corporation
******************************************************
* MACRO-MODEL SIMULATED PARAMETERS:
******************************************************
* OPEN-LOOP GAIN AND PHASE VS. FREQUENCY  WITH RL, CL EFFECTS (Aol)
* UNITY GAIN BANDWIDTH (GBW)
* INPUT COMMON-MODE REJECTION RATIO VS. FREQUENCY (CMRR)
* POWER SUPPLY REJECTION RATIO VS. FREQUENCY (PSRR)
* DIFFERENTIAL INPUT IMPEDANCE (Zid)
* COMMON-MODE INPUT IMPEDANCE (Zic)
* OPEN-LOOP OUTPUT IMPEDANCE VS. FREQUENCY (Zo)
* OUTPUT CURRENT THROUGH THE SUPPLY (Iout)
* INPUT VOLTAGE NOISE DENSITY VS. FREQUENCY (en)
* INPUT CURRENT NOISE DENSITY VS. FREQUENCY (in)
* OUTPUT VOLTAGE SWING vs. OUTPUT CURRENT (Vo)
* SHORT-CIRCUIT OUTPUT CURRENT (Isc)
* QUIESCENT CURRENT (Iq)
* SETTLING TIME VS. CAPACITIVE LOAD (ts)
* SLEW RATE (SR)
* SMALL SIGNAL OVERSHOOT VS. CAPACITIVE LOAD
* LARGE SIGNAL RESPONSE
* OVERLOAD RECOVERY TIME (tor)
* INPUT BIAS CURRENT (Ib)
* INPUT OFFSET CURRENT (Ios)
* INPUT OFFSET VOLTAGE (Vos)
* INPUT COMMON-MODE VOLTAGE RANGE (Vcm)
* INPUT OFFSET VOLTAGE VS. INPUT COMMON-MODE VOLTAGE (Vos vs. Vcm)
* INPUT/OUTPUT ESD CELLS (ESDin, ESDout)
******************************************************
.subckt OPA2992 IN+ IN- VCC VEE OUT
******************************************************
* MODEL DEFINITIONS:
.model BB_SW VSWITCH(Ron=50 Roff=1e12 Von=700e-3 Voff=0)
.model ESD_SW VSWITCH(Ron=50 Roff=1e12 Von=250e-3 Voff=0)
.model OL_SW VSWITCH(Ron=1e-3 Roff=1e9 Von=900e-3 Voff=800e-3)
.model OR_SW VSWITCH(Ron=10e-3 Roff=1e9 Von=1e-3 Voff=0)
.model R_NOISELESS RES(T_ABS=-273.15)
******************************************************
V_GRp       52 MID 50
V_GRn       53 MID -35
I_OS        ESDn MID 0
I_B         25 MID 10P
V_ISCp      68 MID 65
V_ISCn      69 MID -65
V_ORn       67 VCLP -5.4
V11         73 66 0
V_ORp       65 VCLP 6.1
V12         72 64 0
V4          39 OUT 0
VCM_MIN     89 VEE_B 0
VCM_MAX     90 VCC_B 0
I_Q         VCC VEE 2.4M
XIn11       ESDn MID FEMT_0
Xi_n        MID 25 FEMT_0
Xe_n        ESDp 25 VNSE_0
C3          26 MID 5F IC=0 
R74         MID 26 R_RES_1 1MEG 
GVCCS5      26 MID VSENSE MID  -1U
C2          CLAMP MID 184.6N IC=0 
R61         MID CLAMP R_RES_2 1MEG 
XVCCS_LIM_2 27 MID MID CLAMP VCCS_LIM_2_0
R60         MID 27 R_RES_3 1MEG 
XVCCS_LIM_1 28 29 MID 27 VCCS_LIM_1_0
C23         30 MID 8P IC=0 
R73         30 31 R_RES_4 10K 
R72         31 32 R_RES_5 352K 
C22         33 MID 75.07F IC=0 
R71         33 34 R_RES_6 10K 
R70         34 35 R_RES_7 18.38K 
XVCCS_LIM_ZO 33 MID MID 36 VCCS_LIM_ZO_0
R69         35 MID R_RES_8 1 
C21         37 38 90N IC=0 
R68         38 MID R_RES_9 463.4 
R67         38 37 R_RES_10 10K 
G_Adjust2   35 MID 31 MID  1
R64         32 MID R_RES_11 1 
G_adjust1   32 MID 38 MID  22.58
R11         37 MID R_RES_12 1 
R7          36 MID 1 
Rdummy      MID 39 R_RES_13 1.01K 
Rx          39 36 R_RES_14 10.1K 
G_Aol_Zo    37 MID CL_CLAMP 39  -368.16
R63         MID 40 R_RES_15 111.1 
C6          40 41 159.2P 
R24         41 40 R_RES_16 100MEG 
G_adjust    41 MID VEE_B MID  -802.1M
R23         MID 41 R_RES_17 1 
R22         MID 42 R_RES_18 1 
GVCCS4      42 MID 43 MID  -400
R20         MID 43 R_RES_19 2.506K 
C5          43 44 3.183P 
R19         44 43 R_RES_20 1MEG 
R18         MID 44 R_RES_21 1 
GVCCS3      44 MID 45 MID  -1
R17         MID 45 R_RES_22 900.8 
C4          45 46 176.8P 
R16         46 45 R_RES_23 1MEG 
GVCCS2      46 MID VCC_B MID  -1.761M
R8          MID 46 R_RES_24 1 
R15         MID 47 R_RES_25 1 
G_2         47 MID 48 MID  -6
R2b         MID 48 R_RES_26 200K 
C1b         48 49 159F 
R1b         49 48 R_RES_27 1MEG 
R14         MID 49 R_RES_28 1 
GVCCS1      49 MID 50 MID  -1
R6          MID 50 R_RES_29 200 
C1          50 51 159.2P 
R5          51 50 R_RES_30 1MEG 
G_1         51 MID ESDp MID  -7.924M
Rsrc        MID 51 R_RES_31 1 
R13         INn_ESDp INn_ESDn R_RES_32 50 
R12         INp_ESDn INp_ESDp R_RES_33 50 
XGR_AMP     52 53 54 MID 55 56 CLAMP_AMP_HI_0
R49         52 MID R_RES_34 1G 
R54         53 MID R_RES_35 1G 
R55         VSENSE 54 R_RES_36 1M 
C16         54 MID 1F 
R50         55 MID R_RES_37 1 
R53         MID 56 R_RES_38 1 
R51         55 57 R_RES_39 1M 
R52         56 58 R_RES_40 1M 
C14         57 MID 1F 
C15         MID 58 1F 
XGR_SRC     57 58 CLAMP MID VCCS_LIM_GR_0
XVOS_DRIFT  59 25 VOS_DRIFT_0
S5          VEE INp_ESDn VEE INp_ESDn  S_VSWITCH_1
S4          VEE INn_ESDn VEE INn_ESDn  S_VSWITCH_2
S2          INn_ESDp VCC INn_ESDp VCC  S_VSWITCH_3
S3          INp_ESDp VCC INp_ESDp VCC  S_VSWITCH_4
C18         60 MID 1P 
R57         61 60 R_RES_41 100 
C17         62 MID 1P 
R56         63 62 R_RES_42 100 
R48         MID 64 R_RES_43 1 
G11         64 MID 65 MID  -1
R47         66 MID R_RES_44 1 
G10         66 MID 67 MID  -1
XIQp        VIMON MID MID VCC VCCS_LIMIT_IQ_0
XIQn        MID VIMON VEE MID VCCS_LIMIT_IQ_0
C_DIFF      ESDp ESDn 9P 
XCL_AMP     68 69 VIMON MID 70 71 CLAMP_AMP_LO_0
SOR_SWp     CLAMP 72 CLAMP 72  S_VSWITCH_5
SOR_SWn     73 CLAMP 73 CLAMP  S_VSWITCH_6
R42         70 MID R_RES_45 1 
R45         MID 71 R_RES_46 1 
R43         70 74 R_RES_47 1M 
R44         71 75 R_RES_48 1M 
C12         74 MID 1F 
C13         MID 75 1F 
XCL_SRC     74 75 CL_CLAMP MID VCCS_LIM_4_0
R41         68 MID R_RES_49 1G 
R46         MID 69 R_RES_50 1G 
XCLAWp      VIMON MID 76 VCC_B VCCS_LIM_CLAW+_0
XCLAWn      MID VIMON VEE_B 77 VCCS_LIM_CLAW-_0
R29         76 VCC_B R_RES_51 1K 
R30         76 78 R_RES_52 1M 
R32         VEE_B 77 R_RES_53 1K 
R33         79 77 R_RES_54 1M 
C9          79 MID 1F 
C8          MID 78 1F 
G8          VCC_CLP MID 78 MID  -1M
R31         VCC_CLP MID R_RES_55 1K 
G9          VEE_CLP MID 79 MID  -1M
R34         MID VEE_CLP R_RES_56 1K 
XCLAW_AMP   VCC_CLP VEE_CLP VOUT_S MID 80 81 CLAMP_AMP_LO_0
R35         VCC_CLP MID R_RES_57 1G 
R40         VEE_CLP MID R_RES_58 1G 
R36         80 MID R_RES_59 1 
R39         MID 81 R_RES_60 1 
R37         80 82 R_RES_61 1M 
R38         81 83 R_RES_62 1M 
C10         82 MID 1F 
C11         MID 83 1F 
XCLAW_SRC   82 83 CLAW_CLAMP MID VCCS_LIM_3_0
H2          63 MID V11 -1
H3          61 MID V12 1
C19         SW_OL MID 1P 
R59         84 SW_OL R_RES_63 100 
R58         84 MID R_RES_64 1 
XOL_SENSE   MID 84 62 60 OL_SENSE_0
S1          37 38 SW_OL MID  S_VSWITCH_7
H3_2        85 MID V4 1K
S7          VEE OUT VEE OUT  S_VSWITCH_8
S6          OUT VCC OUT VCC  S_VSWITCH_9
R83         MID 86 R_RES_65 1G 
R_VOUT_S    86 VOUT_S R_RES_66 100 
C_VOUT_S    VOUT_S MID 1N 
E3          86 MID OUT MID  1
C_VIMON     VIMON MID 1N 
R_VIMON     85 VIMON R_RES_67 100 
R81         MID 85 R_RES_68 1G 
R_VCLP      87 VCLP R_RES_69 100 
C_VCLP      VCLP MID 100P 
E2          87 MID CL_CLAMP MID  1
R66         MID CL_CLAMP R_RES_70 1K 
G16         CL_CLAMP MID CLAW_CLAMP MID  -1M
R65         MID CLAW_CLAMP R_RES_71 1K 
G15         CLAW_CLAMP MID 26 MID  -1M
R62         MID VSENSE R_RES_72 1K 
G12         VSENSE MID CLAMP MID  -1M
C7          28 MID 1F 
R28         28 88 R_RES_73 1M 
R25         MID 89 R_RES_74 1G 
R26         90 MID R_RES_75 1G 
R27         MID 88 R_RES_76 1 
XVCM_CLAMP  91 MID 88 MID 90 89 VCCS_EXT_LIM_0
E6          MID 0 92 0  1
R109        VEE_B 0 R_RES_77 1 
R113        93 VEE_B R_RES_78 1M 
C35         93 0 1F 
R112        92 93 R_RES_79 1MEG 
C34         92 0 100N 
R108        92 0 R_RES_80 1T 
R111        94 92 R_RES_81 1MEG 
C33         94 0 1F 
R110        VCC_B 94 R_RES_82 1M 
R107        VCC_B 0 R_RES_83 1 
G37         VEE_B 0 VEE 0  -1
G36         VCC_B 0 VCC 0  -1
R21         95 91 R_RES_84 1K 
G6          91 95 42 40  -1M
R10         29 ESDn R_RES_85 1M 
R9          95 96 R_RES_86 1M 
R_CMR       59 96 R_RES_87 1K 
G_CMR       96 59 47 MID  -1M
C_CMn       ESDn MID 1P 
C_CMp       MID ESDp 1P 
R4          ESDn MID R_RES_88 1T 
R3          MID ESDp R_RES_89 1T 
R2          IN- ESDn R_RES_90 10M 
R1          IN+ ESDp R_RES_91 10M 

.MODEL R_RES_1 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_2 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_3 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_4 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_5 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_6 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_7 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_8 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_9 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_10 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_11 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_12 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_13 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_14 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_15 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_16 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_17 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_18 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_19 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_20 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_21 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_22 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_23 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_24 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_25 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_26 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_27 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_28 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_29 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_30 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_31 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_32 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_33 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_34 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_35 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_36 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_37 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_38 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_39 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_40 RES ( TCE=0 T_ABS=-273.15)
.MODEL S_VSWITCH_1 VSWITCH (RON=50 ROFF=1T VON=500M VOFF=450M)
.MODEL S_VSWITCH_2 VSWITCH (RON=50 ROFF=1T VON=500M VOFF=450M)
.MODEL S_VSWITCH_3 VSWITCH (RON=50 ROFF=1T VON=500M VOFF=450M)
.MODEL S_VSWITCH_4 VSWITCH (RON=50 ROFF=1T VON=500M VOFF=450M)
.MODEL R_RES_41 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_42 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_43 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_44 RES ( TCE=0 T_ABS=-273.15)
.MODEL S_VSWITCH_5 VSWITCH (RON=10M ROFF=1G VON=10M VOFF=0)
.MODEL S_VSWITCH_6 VSWITCH (RON=10M ROFF=1G VON=10M VOFF=0)
.MODEL R_RES_45 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_46 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_47 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_48 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_49 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_50 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_51 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_52 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_53 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_54 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_55 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_56 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_57 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_58 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_59 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_60 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_61 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_62 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_63 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_64 RES ( TCE=0 T_ABS=-273.15)
.MODEL S_VSWITCH_7 VSWITCH (RON=1M ROFF=1G VON=900M VOFF=800M)
.MODEL S_VSWITCH_8 VSWITCH (RON=50 ROFF=1T VON=500M VOFF=450M)
.MODEL S_VSWITCH_9 VSWITCH (RON=50 ROFF=1T VON=500M VOFF=450M)
.MODEL R_RES_65 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_66 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_67 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_68 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_69 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_70 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_71 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_72 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_73 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_74 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_75 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_76 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_77 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_78 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_79 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_80 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_81 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_82 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_83 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_84 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_85 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_86 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_87 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_88 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_89 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_90 RES ( TCE=0 T_ABS=-273.15)
.MODEL R_RES_91 RES ( TCE=0 T_ABS=-273.15)
.ENDS OPA2992

* FEMT - INPUT CURRENT NOISE IN FA/RT-HZ
.SUBCKT FEMT_0  1 2
* INPUT VARIABLES
* SET UP 1/F NOISE
* FLWF = 1/F FREQUENCY IN HZ
.PARAM FLWF=1E-3
* NLFF = CURRENT NOISE DENSITY AT 1/F FREQUENCY IN FA/RT(HZ)
.PARAM NLFF=60
* SET UP BROADBAND NOISE
* NVRF = BROADBAND CURRENT NOISE DENSITY IN FA/RT(HZ)
.PARAM NVRF=60
* CALCULATED VALUES
.PARAM GLFF={PWR(FLWF,0.25)*NLFF/1164}
.PARAM RNVF={1.184*PWR(NVRF,2)}
.MODEL DVNF D KF={PWR(FLWF,0.5)/1E11} IS=1.0E-16
* CIRCUIT CONNECTIONS
I1 0 7 10E-3
I2 0 8 10E-3
D1 7 0 DVNF
D2 8 0 DVNF
E1 3 6 7 8 {GLFF}
R1 3 0 1E9
R2 3 0 1E9
R3 3 6 1E9
E2 6 4 5 0 10
R4 5 0 {RNVF}
R5 5 0 {RNVF}
R6 3 4 1E9
R7 4 0 1E9
G1 1 2 3 4 1E-6
.ENDS


* VNSE - INPUT VOLTAGE NOISE IN NV/RT-HZ
.SUBCKT VNSE_0  1 2
* INPUT VARIABLES
* SET UP 1/F NOISE
* FLW = 1/F FREQUENCY IN HZ
.PARAM FLW=10
* NLF = VOLTAGE NOISE DENSITY AT 1/F FREQUENCY IN NV/RT(HZ)
.PARAM NLF=64.13
* SET UP BROADBAND NOISE
* NVR = BROADBAND VOLTAGE NOISE DENSITY IN NV/RT(HZ)
.PARAM NVR=4
* CALCULATED VALUES
.PARAM GLF={PWR(FLW,0.25)*NLF/1164}
.PARAM RNV={1.184*PWR(NVR,2)}
.MODEL DVN D KF={PWR(FLW,0.5)/1E11} IS=1.0E-16
* CIRCUIT CONNECTIONS
I1 0 7 10E-3
I2 0 8 10E-3
D1 7 0 DVN
D2 8 0 DVN
E1 3 6 7 8 {GLF}
R1 3 0 1E9
R2 3 0 1E9
R3 3 6 1E9
E2 6 4 5 0 10
R4 5 0 {RNV}
R5 5 0 {RNV}
R6 3 4 1E9
R7 4 0 1E9
E3 1 2 3 4 1
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE WITH LIMITS - AOL SECOND STAGE
.SUBCKT VCCS_LIM_2_0  VC+ VC- IOUT+ IOUT-
.PARAM GAIN = 1.26E-1
.PARAM IPOS = 6.64
.PARAM INEG = -5.9
G1 IOUT+ IOUT- VALUE={LIMIT(GAIN*V(VC+,VC-),INEG,IPOS)}
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE WITH LIMITS - AOL FIRST STAGE
.SUBCKT VCCS_LIM_1_0  VC+ VC- IOUT+ IOUT-
.PARAM GAIN = 1E-4
.PARAM IPOS = .5
.PARAM INEG = -.5
G1 IOUT+ IOUT- VALUE={LIMIT(GAIN*V(VC+,VC-),INEG,IPOS)}
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE WITH LIMITS - ZO OUTPUT
.SUBCKT VCCS_LIM_ZO_0  VC+ VC- IOUT+ IOUT-
.PARAM GAIN = 1
.PARAM IPOS = 2E3
.PARAM INEG = -2E3
G1 IOUT+ IOUT- VALUE={LIMIT(GAIN*V(VC+,VC-),INEG,IPOS)}
.ENDS



* CLAMP AMP - OVERLOAD AND GROSS CLAMP
.SUBCKT CLAMP_AMP_HI_0  VC+ VC- VIN COM VO+ VO-
*  PINS     CLAMP V+  CLAMP V-  VIN  COM   VOUT+  VOUT-
.PARAM G=10
* OUTPUT G(COM,0) WHEN CONDITION NOT MET
GVO+ COM VO+ VALUE = {IF(V(VIN,COM)>V(VC+,COM),((V(VIN,COM)-V(VC+,COM))*G),0)}
GVO- COM VO- VALUE = {IF(V(VIN,COM)<V(VC-,COM),((V(VC-,COM)-V(VIN,COM))*G),0)}
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE WITH LIMITS - GROSS CLAMP
.SUBCKT VCCS_LIM_GR_0  VC+ VC- IOUT+ IOUT-
.PARAM GAIN = 1
.PARAM IPOS = 14
.PARAM INEG = -12
G1 IOUT+ IOUT- VALUE={LIMIT(GAIN*V(VC+,VC-),INEG,IPOS)}
.ENDS


* INPUT OFFSET VOLTAGE VS. TEMPERATURE
.SUBCKT VOS_DRIFT_0  VOS+ VOS-
.PARAM DC = 0.21E-3
.PARAM POL = 1
.PARAM DRIFT = 0
E1 VOS+ VOS- VALUE={DC+POL*DRIFT*(TEMP-27)}
.ENDS


* VOLTAGE-CONTROLLED SOURCE WITH LIMITS - IOUT DRAW
.SUBCKT VCCS_LIMIT_IQ_0  VC+ VC- IOUT+ IOUT-
.PARAM GAIN = 1E-3
G1 IOUT- IOUT+ VALUE={IF( (V(VC+,VC-)<=0),0,GAIN*V(VC+,VC-) )}
.ENDS


* CLAMP AMP - CLAW AND CURRENT LIMIT CLAMP
.SUBCKT CLAMP_AMP_LO_0  VC+ VC- VIN COM VO+ VO-
*  PINS     CLAMP V+  CLAMP V-  VIN  COM   VOUT+  VOUT-
.PARAM G=1
* OUTPUT G(COM,0) WHEN CONDITION NOT MET
GVO+ COM VO+ VALUE = {IF(V(VIN,COM)>V(VC+,COM),((V(VIN,COM)-V(VC+,COM))*G),0)}
GVO- COM VO- VALUE = {IF(V(VIN,COM)<V(VC-,COM),((V(VC-,COM)-V(VIN,COM))*G),0)}
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE WITH LIMITS - CURRENT LIMIT CLAMP
.SUBCKT VCCS_LIM_4_0  VC+ VC- IOUT+ IOUT-
.PARAM GAIN = 1
.PARAM IPOS = 200E-3
.PARAM INEG = -140E-3
G1 IOUT+ IOUT- VALUE={LIMIT(GAIN*V(VC+,VC-),INEG,IPOS)}
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE (TABLE-DEFINED) - CLAW+
.SUBCKT VCCS_LIM_CLAW+_0  VC+ VC- IOUT+ IOUT-
G1 IOUT+ IOUT- TABLE {(V(VC+,VC-))} =
+(0, 6.87E-5)
+(15, 4.04E-4)
+(30, 7.93E-4)
+(45, 1.27E-3)
+(60, 1.8E-3)
+(70, 2.4E-3)
+(80, 3.75E-3)
+(90, 9.83E-3)
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE (TABLE-DEFINED) - CLAW-
.SUBCKT VCCS_LIM_CLAW-_0  VC+ VC- IOUT+ IOUT-
G1 IOUT+ IOUT- TABLE {(V(VC+,VC-))} =
+(0, 7.59E-5)
+(40, 1.21E-3)
+(60, 2E-3)
+(70, 2.61E-3)
+(80, 4.42E-3)
+(90, 9.61E-3)
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE WITH LIMITS - CLAW CLAMP
.SUBCKT VCCS_LIM_3_0  VC+ VC- IOUT+ IOUT-
.PARAM GAIN = 1
.PARAM IPOS = 100E-3
.PARAM INEG = -70E-3
G1 IOUT+ IOUT- VALUE={LIMIT(GAIN*V(VC+,VC-),INEG,IPOS)}
.ENDS


* OVERLOAD SENSE FOR ZO SWITCHES
.SUBCKT OL_SENSE_0  COM SW+ OLN  OLP
* PINS          COM SW+ OLN OLP
GSW+ COM SW+ VALUE = {IF((V(OLN,COM)>10E-3 | V(OLP,COM)>10E-3),1,0)}
.ENDS


* VOLTAGE-CONTROLLED CURRENT SOURCE WITH EXTERNAL LIMITS - VCM CLAMP
.SUBCKT VCCS_EXT_LIM_0  VIN+ VIN- IOUT- IOUT+ VP+ VP-
.PARAM GAIN = 1
G1 IOUT+ IOUT- VALUE={LIMIT(GAIN*V(VIN+,VIN-),V(VP-,VIN-), V(VP+,VIN-))}
.ENDS


.END

    If you have other questions, please let me know. 

    Best,

    Raymond

  • 0 in reply to Raymond Zhang1
    Prodigy 150 points

    Hello, Raymond Zhang,
    this is Kwonjoon Lee.

    I cannot still obtain correct simulation results.
    Could you provide your simulation file?

    Best regards,
    Kwonjoon Lee

  • 0 in reply to Kwonjoon Lee
    TI__Guru* 77541 points

    Hi Kwonjoon,

    Please request a "friendship" request via E2E forum. I can help you via the E2E private messaging system. 

    Best,

    Raymond

  • 0 in reply to Raymond Zhang1
    Prodigy 150 points

    Hello, Raymond Zhang,
    this is Kwonjoon Lee.

    I have requested friendship.
    Please check and accept my request.

    Best regards,
    Kwonjoon Lee

  • 0 in reply to Kwonjoon Lee
    TI__Guru* 77541 points

    Hi Kwonjoon, 

    I am going to close this query, since we have established communication via E2E private messaging for the matter. 

    Best,

    Raymond

  • 0 in reply to Raymond Zhang1
    Prodigy 150 points

    Hello, Raymond Zhang,

    My problem about PSpice model of OPA2992 is not solved.
    In LTspice environment, PSpice model of OPA2992 does not still output a correct value.

  • 0 in reply to Kwonjoon Lee
    TI__Guru* 77541 points

    Hi Kownjoon, 

    I have replied your question over E2E private messaging. 

    Best,

    Raymond

  • 0 in reply to Raymond Zhang1
    Prodigy 150 points

    I want another TI FAE to discuss this issue.
    I am still thinking that OPA2992 SPICE model is inaccurate, and improvement should be performed.

  • 0 in reply to Kwonjoon Lee
    Prodigy 150 points

    Also, it seems that current TI FAE has a difficuty in good communication with a customer.
    Please refer to the following private messages.

    -----------------------------------------------------------------------------------------------------------------------

    Kwonjoon,

    The Aol open loop setup is a standard op amp measurement. If you have Vector Network Analyzer, you can do that in your lab, Or you can simulate through the simulation tool. 

    Are you new to the op amp world?

    Topic1)
    It seems that the TINA-TI model of OPA2992 does not reflect the supply-dependency of open-loop DC gain of OPA2992.
    In the case that V+ and V- of OPA2992 are 1.35V and -1.35V, respectively, the open-loop DC gain is not ~105dB but ~140dB.
    (It is different from Figure 5-29 of the datasheet)

    You can not have Vin+ = 1.35Vdc and Vin- = -1.35Vdc. This is not considered op amp linear operation. For a linear operation, Vin+ ≅ Vin-.  

    (Topic2)
    Could you provide a measurement data of the open-loop gain & phase response of OPA2992?
    There is no figure of the open-loop gain & phase response in the datasheet.
    If you can provide data or figure of the open-loop gain & phase response, please send me the data with e-mail.

    I maybe able to provide the Aol data, but I have to ask our validation team for these. 

    Best,

    Raymond

  • 0 in reply to Kwonjoon Lee
    Prodigy 150 points

    For the above-mentioned Topic1, 
    V+ means positive supply voltage.
    V- means negative supply voltage.

    Again, please read carefully my messages.

  • 0 in reply to Raymond Zhang1
    Prodigy 150 points

    To be honest, I have been using TI's products since 2012.
    I am very disappointed and frustrated with current TI's response.

  • 0 in reply to Kwonjoon Lee
    TI__Guru* 77541 points

    Hello Kwonjoon,

    You wanted the LTSpice model and I provide it. I can not support you via LTSpice tool due to license agreement. 

    Multiple Aol related simulations are provided, but you claimed that our Spice model is not accurate. Aol behavior model through simulation is only good within ±30% of the published GBWP. 

    To simulate the op amp's Aol, the Aol as a function of supply voltage is not modeled. Most companies do not model the Aol behavior vs. supply voltages.

    I asked what you are trying to do, there is no response. I do not use V+ and V- convention, though some of our datasheet are presented this way, but at least the datasheet has a picture associated with the notation. Without a context, the convention is very unclear.   

    The OPA2992's modeled features are listed at the beginning of the *.lib or *.txt model. 

    OPA2992 Aol and Phase Margin 03762025.TSC

    Here is V+ = 1.35Vdc and V- = -1.35Vdc Aol simulation.  As you can see, it makes no differences. So the Spice model is fine, if you know what you want. 

    Have a Nice Day!

    Raymond