Hi all,
I pulled down a model from Microchip:
********************************************************************************
* Software License Agreement *
* *
* The software supplied herewith by Microchip Technology Incorporated (the *
* 'Company') is intended and supplied to you, the Company's customer, for use *
* soley and exclusively on Microchip products. *
* *
* The software is owned by the Company and/or its supplier, and is protected *
* under applicable copyright laws. All rights are reserved. Any use in *
* violation of the foregoing restrictions may subject the user to criminal *
* sanctions under applicable laws, as well as to civil liability for the *
* breach of the terms and conditions of this license. *
* *
* THIS SOFTWARE IS PROVIDED IN AN 'AS IS' CONDITION. NO WARRANTIES, WHETHER *
* EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED *
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO *
* THIS SOFTWARE. THE COMPANY SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR *
* SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. *
********************************************************************************
*
* The following op-amps are covered by this model:
* MCP6N11, BASE MODEL
*
* Date of model creation: 10-12-2015
* Level of Model Creator: 1.12 / 09-05-12
*
* Revision History:
* REV A: 12-OCT-15, Initial Input from Model Creator V 1.12
* REV B: 06-JAN-16, Updated Test schematics using RF/RG feedback network,
* REV C: 28-JAN-16, IB/IOS, CMRR, PSRR, SLEW, NOISE, GAIN/PHASE, VOS, IQ
* REV D: 17-MAY-16, VOS and VOS Drift adjustments for GAINS = 1,2,5,10, and 100
*
*
* Recommendations:
* Use PSPICE (or SPICE 2G6; other simulators may require translation)
* For a quick, effective design, use a combination of: data sheet
* specs, bench testing, and simulations with this macromodel
* For high impedance circuits, set GMIN=100F in the .OPTIONS statement
*
* Supported:
* Typical performance for temperature range (-40 to 125) degrees Celsius
* DC, AC, Transient, and Noise analyses.
* Most specs, including: offsets, DC PSRR, DC CMRR, input impedance,
* open loop gain, voltage ranges, supply current, ... , etc.
* Temperature effects for Ibias, Iquiescent, Iout short circuit
* current, Vsat on both rails, Slew Rate vs. Temp and P.S.
*
* Not Supported:
* Some Variation in specs vs. Power Supply Voltage
* Vos distribution, Ib distribution for Monte Carlo
* Distortion (detailed non-linear behavior)
* Some Temperature analysis
* Process variation
* Behavior outside normal operating region
*
* Known Discrepancies in Model vs. Datasheet:
*
*
*
.SUBCKT MCP6N11 EN/CAL VDD VFG VIM VIP VOUT VREF VSS
+ PARAMS: GM=1
G_G3 0 9 TABLE { V(7, 0) }
+ ( (0,0)(1.00,8.00U)(2.00,780U)(3.00,780U)(4.00,790U)(5.00,800U)(6.00,820U) )
R_R1 1 2 1k
X_U8 4 1 INVERTER
C_C1 0 2 1n
V_U4_V1V 1V 0 1
X_U4_D2 U4_10 1V DC_1mV_1A_1V_1nA
X_U4_U28 U4_15 POR INVERTER
X_U4_D4 0 U4_17 DC_1mV_1A_1V_1nA
R_U4_R2 U4_13 U4_16 1k
C_U4_C2 0 U4_10 2u
X_U4_U38 VDD_VSS U4_12 ANALOG_BUFFER PARAMS: GAIN=0.5
X_U4_U36 U4_10 VDDLY COMPARATOR2 PARAMS: TH=0.5
C_U4_C5 0 U4_16 1n
X_U4_D1 0 U4_10 DC_1mV_1A_1V_1nA
X_U4_D5 U4_17 1V DC_1mV_1A_1V_1nA
G_U4_G5 0 U4_10 U4_15 0 {1E-6/250m}
*G_U4_G5 0 U4_10 U4_15 0 {1E-6/100u}
G_U4_G6 0 U4_17 U4_16 0 {1E-6/20m}
*G_U4_G6 0 U4_17 U4_16 0 {1E-6/50u}
X_U4_U27 U4_15 U4_11 INVERTER
X_U4_U6 EN/CAL_VSS U4_12 U4_9 U4_13 COMP_HYS PARAMS: T=100
R_U4_R1 U4_14 U4_15 1k
*V_U4_VENHYS1 U4_9 0 0.20
V_U4_VENHYS1 U4_9 0 0.16
G_U4_G7 U4_17 0 U4_18 0 {1E-6/3u}
*G_U4_G7 U4_17 0 U4_18 0 {1E-6/0.1u}
X_U4_U1 VDD_VSS U4_19 U4_14 COMPARATOR
C_U4_C1 0 U4_15 1n
C_U4_C4 0 U4_17 2u
X_U4_U37 U4_17 ENDLY COMPARATOR2 PARAMS: TH=0.5
X_U4_U32 U4_16 U4_18 INVERTER
*G_U4_G4 U4_10 0 U4_11 0 {1E-6/10u}
G_U4_G4 U4_10 0 U4_11 0 {1E-6/10u}
*V_U4_VINTH U4_19 0 1.30
V_U4_VINTH U4_19 0 1.50
X_U1 VIP VIM VDDBUFF VSS VINP GMX PARAMS: GMIN={GM}
G_G2 VDD VSS 9 0 1
*IQ ENABLE ON TEMP COEFF
R_R9 0 9 1 TC=2.31M,1.11U
X_U3 VINP VINM VDDBUFF VSS 10 OUTX PARAMS: GMIN={GM}
G_G4 0 8 TABLE { V(6, 0) }
*+ ( (0,0)(1.4,0.1N)(1.5,2.5U)(2.5,2.5U)(3.5,2.5U)(4.5,2.5U)(5.5,2.5U) )
+ ( (0,0)(0.50,0.05U)(1.5,0.30U)(2.5,0.625U)(3.5,1.0U)(4.5,1.35U)(6.5,2.10U) )
G_G5 VDD VSS 8 0 1
X_U2 VREF VFG VDDBUFF VSS VINP GMX PARAMS: GMIN={GM}
E_E2 VDD_VSS 0 VDD VSS 1
X_U7 VDD_VSS 5 7 ANALOG_MULTI
R_R2 4 5 1k
R_R3 4 20 1K
C_C3 20 0 1N
X_S1 20 0 10 VOUT MCP6N11_S1
X_U5 VDDLY ENDLY 4 AND
C_C2 0 5 1n
R_R10 0 VINM 1m
E_E1 VDDBUFF VSS VDD VSS 1
E_E3 EN/CAL_VSS 0 EN/CAL VSS 1
R_R5 VINM VINP 1
************* Begin of Injecting PSRR on Output
*
* PSRR PLUS Zero
*
E5700A 5700 0 VALUE = {GM}
E5701A 5701 0 TABLE { V(5700,0) } ((1,850.15U)(2,300.15U)(5,33.15U)(10,20.15U)(100,1.84U))
E5701B 5702 0 TABLE { V(5700,0) } ((1,850.15U)(2,300.15U)(5,33.15U)(10,20.15U)(100,1.84U))
G57A 0 VINP VALUE {1 * 625U + V(110D) + V(120D) + 0 }
*
* PSRR Plus Zero 1
* G110 THE DC GAIN FOR +PSRR AND L110 THE ROLL OFF WITH R110 AND THE NOISELESS ZERO WITH GR112
G110 0 110 VALUE {(1400N * V(5701)) * V(VDD)}
L110 110 111 19.9M
R110 111 0 1G
GR110 111 0 111 0 {1/1}
*
* PSRR Plus Pole 1
G110B 0 110B 110 111 1
GR110B 110B 0 110B 0 {1/1K}
R110B 110B 0 1G
C110B 110B 0 79.6N
*
* PSRR Plus Zero 2
G110C 0 110C 110B 0 1
L110C 110C 111C 359.9U
R110C 111C 0 1G
GR110C 111C 0 111C 0 {1/1K}
*
* PSRR Plus Buffer
E110D 110D 0 111C 110C 1
*
* PSRR MINUS Zero 1
*
* G120 THE DC GAIN FOR -PSRR AND L120 THE ROLL OFF WITH R120 AND THE NOISELESS ZERO WITH GR122
G120 0 120 VALUE {(1400N * V(5702)) * V(VSS)}
L120 120 121 19.9M
R120 121 0 1G
GR120 121 0 121 0 {1/1}
*
* PSRR Minus Pole 1
G120B 0 120B 120 121 1
GR120B 120B 0 120B 0 {1/1K}
R120B 120B 0 1G
C120B 120B 0 79.6N
*
* PSRR Minus Zero 2
G120C 0 120C 120B 0 1
L120C 120C 121C 359.9U
R120C 121C 0 1G
GR120C 121C 0 121C 0 {1/1K}
*
* PSRR Minus Buffer
E120D 120D 0 121C 120C 1
************** End of Injecting PSRR on Output
X_U6 VDD_VSS 2 6 ANALOG_MULTI
*IQ ENABLE 0FF TEMP COEFF
R_R11 0 8 1 TC=1.29M,8.73U
.ENDS
** Floating/unmodeled pin fixups **
R__UC0001 VIP 0 {1/GMIN}
R__UC0002 VIM 0 {1/GMIN}
R__UC0003 VREF 0 {1/GMIN}
R__UC0004 VFG 0 {1/GMIN}
*.PARAM GM={GAIN}
.subckt MCP6N11_S1 1 2 3 4
S_S1 3 4 1 2 _S1
RS_S1 1 2 1G
.MODEL _S1 VSWITCH Roff=100e6 Ron=1 Voff=0.25V Von=0.75V
.ends MCP6N11_S1
.SUBCKT INVERTER IN OUT
EOUT OUT 0 VALUE { IF( V(IN)<0.5,1,0) }
.ends INVERTER
.subckt DC_1mV_1A_1V_1nA A C
G1 A C TABLE { V(A, C) } ( (-1,-1n)(0,0)(1m,1) (2m,10) (3m,1000) )
.ends DC_1mV_1A_1V_1nA
.SUBCKT ANALOG_BUFFER IN OUT
+ PARAMs: GAIN=1
EOUT OUT 0 VALUE { GAIN * V(IN)}
.ends ANALOG_BUFFER
.SUBCKT COMPARATOR2 INP OUT
+ PARAMs: TH=1
EOUT OUT 0 VALUE { IF( V(INP)>TH,1,0) }
.ends COMPARATOR2
.SUBCKT COMP_HYS INP INM HYS OUT PARAMs: T=10
EIN INP1 INM1 INP INM 1
EHYS INP1 INP2 VALUE { IF( V(1)>0.5,-V(HYS)/2,V(HYS)/2) }
EOUT OUT 0 VALUE { IF( V(INP2)>V(INM1),1,0) }
R1 OUT 1 1
C1 1 0 {T*1e-9}
RINP1 INP1 0 1K
.ends COMP_HYS
.SUBCKT COMPARATOR INP INM OUT
EOUT OUT 0 VALUE { IF( V(INP)>V(INM),1,0) }
.ends COMPARATOR
.SUBCKT ANALOG_MULTI IN1 IN2 OUT
EOUT OUT 0 VALUE { V(IN1)*V(IN2)}
.ends ANALOG_MULTI
.SUBCKT AND A B OUT
EOUT OUT 0 VALUE { IF( V(A)>0.5 & V(B)>0.5,1,0) }
.ends AND
.SUBCKT GMX 1 2 3 4 30 PARAMs: GMIN=1
* | | | | |
* | | | | Output
* | | | Negative Supply
* | | Positive Supply
* | Inverting Input
* Non-inverting Input
*
*
*
* Input Stage
C12 1 0 6.00P
* Tweaked E12 to dial in Offset Voltage on GMX
* Handle VOS Based on GAIN = GMIN 11-10-15 (E2200)
* Variable Noise based on GMIN (E2201)
E1200 1200 0 VALUE = {GMIN}
*E2200 1201 0 TABLE { V(1200,0) } ((1,-190.3922U)(2,473.7885U)(5,208.739U)(10,137.4548U)(100,71.525U))
E2200 1201 0 TABLE { V(1200,0) } ((1,-216.0324U)(2,460.9683U)(5,203.6108U)(10,134.8905U)(100,70.7483U))
E2201 2201 0 TABLE { V(1200,0) } ((1,1.0)(2,0.469)(5,0.179)(10,0.096)(100,0.0322))
E2202 2202 0 TABLE { V(1200,0) } ((1,22.0M)(2,29.0M)(5,30.0M)(10,24.0M)(100,29.0M))
E12 71 14 VALUE { (V(1201)) + V(20) * 124E0 * V(2201) + V(21) * 124E0 * V(2201) + V(22) * 124E0 * V(2201) +
+ V(23) * 124E0 * V(2201) + 0 * 1 + V(2700) * 1}
* Generate Input Bias 1 and 2 and Input Offset
EG12 VIB1 0 62 0 1
EG13 VIBOS 0 63 0 1m
EG14 VIB2 0 62 0 1
* Calculate IB1 and IB2 based on IOS
EABM1 VABM1 0 VALUE { ((V(VIB1)+V(VIB2))+(V(VIBOS))) /2 }
EABM2 VABM2 0 VALUE { ((V(VIB1)+V(VIB2))-(V(VIBOS))) /2 }
* Convert Voltage to Current on Pins 1 and 2
GP1 1 0 VABM1 0 1m
GP2 2 0 VABM2 0 1m
C14 2 0 6.00P
V16 16 4 10.0M
GD16 16 1 TABLE {V(16,1)} ((-100,-100E-15)(0,0)(1m,1u)(2m,1m))
V13 3 13 -10.0M
GD13 2 13 TABLE {V(2,13)} ((-100,-100E-15)(0,0)(1m,1u)(2m,1m))
R71 1 0 10.0E12
R72 2 0 10.0E12
R73 1 2 20.0E12
*
* Noise, PSRR, and CMRR
*
GI20 21 20 VALUE { V(2202)}
D20 20 0 DN1
D21 0 21 DN1
I22 22 23 1U
R22 22 0 1k
R23 0 23 1k
*CMRR Based on GAIN
E5000 5000 0 VALUE = {GMIN}
E5002 5001 0 TABLE { V(5000,0) } ((1,29.511)(2,2.411)(5,1.611)(10,0.691)(100,0.044))
G27 0 27 VALUE { -55.0U + V(1) * {7.16U * V(5001)} + V(2) * {7.16U * V(5001)} }
*************
* Add Zeroes for GMIN=1, 2, 5, 10, 100
*
E6000 6001 0 TABLE { V(5000,0) } ((1,17.0)(2,96.0)(5,51.0)(10,16.0)(100,2.6))
X6001 27A 27 6001 0 VC_INDUCTOR PARAMS: L_1V=1U
R27 27 0 1G
R27A 27A 0 1G
GR27 27A 0 27A 0 {1/1}
E2700 2700 0 27 0 1
*
* Open Loop Gain, Slew Rate
G30 0 30 VALUE {GMIN/3 * V(1001) * (V(14) - V(2))}
E1000 1000 0 VALUE = {GMIN}
E200 1001 0 TABLE { V(1000,0) } ((1,0.98)(2,0.92)(5,0.89)(10,0.86)(100,0.60))
*
* Temperature Sensitive offset voltage
I73 0 70 DC 1
*R74 0 70 1 TC={-32.18U * 1/Limit(GMIN,33,1)}
R74 0 70 1 TC={-45.00U * 1/Limit(GMIN,33,1)}
E75 1 71 VALUE {V(70)-1}
*
* Temp Sensistive IBias
* Manual Modify Input Bias Current Total
I62 0 62 DC 1000u
R62 0 62 REXP 5.51784U
*
* Temp Sensistive Offset IBias
* Manual Modify Input Offset Current
I63 0 63 DC 1000u
R63 0 63 REXP2 348.37036U
*
* Models
.MODEL NMI NMOS(L=2.00U W=42.0U KP=200U LEVEL=1 )
.MODEL DESD D N=1 IS=1.00E-15
.MODEL DN1 D IS=1P KF=45.0E-15 AF=.001
.MODEL REXP RES TCE= 5.32477
.MODEL REXP2 RES TCE= 4.86433
.ENDS GMX
.SUBCKT OUTX 1 2 3 4 5 PARAMs: GMIN=1
* | | | | |
* | | | | Output
* | | | Negative Supply
* | | Positive Supply
* | Inverting Input
* Non-inverting Input
*
*
* Open Loop Gain, Slew Rate
G30 0 30 1 2 1
R30 30 0 1.00K
* Components changed/affected by GBWP
* SLEW RATE (GAINS 1-10, 100) AND VDD(1.8 AND 5.5)
E3100 3100 0 VALUE = {GMIN}
E3101 3101 0 TABLE { V(3100,0) } ((1,1.00K)(2,1.00K)(5,1.00K)(10,1.00K)(100,650))
E3102 3102 0 TABLE { V(3,4) } ((1.8,0.38)(5.5,1.00))
G31 0 31 3 4 0.00
GI31 0 31 VALUE { V(3101) * V(3102)}
R31 31 0 1 TC=1.39M,-18.0U
GD31 30 0 TABLE {V(30,31)} ((-100,-1n)(0,0)(1m,0.1)(2m,2))
G32 32 0 3 4 0.00
GI32 32 0 VALUE { V(3101) * V(3102)}
R32 32 0 1 TC=1.39M,-18.0U
GD32 0 30 TABLE {V(30,32)} ((-2m,2)(-1m,0.1)(0,0)(100,-1n))
G33 0 33 30 0 1m
R33 33 0 1K
G34 0 34 33 0 {0.165}
R34 34 0 1K
C34 34 0 15.400U
* End Components changed/affected by GBWP
G37 0 37 34 0 1m
R37 37 0 1k
C37 37 0 0.001P
E2000 2000 0 VALUE = {GMIN}
E20001 2001 0 TABLE { V(2000,0) } ((1,0.059)(2,0.159)(5,0.259)(10,0.00019)(100,0.459))
X20001 37A 0 2001 0 VC_CAPACITOR PARAMS: C_1V=100P
G37A 0 37A 37 0 1m
R37A 37A 0 1K
*************
* Add Poles for GMIN=10, 100
*
E20002 2002 0 TABLE { V(2000,0) } ((1,0.59001)(2,0.54001)(5,0.460001)(10,0.7500001)(100,0.8401))
X20002 37A2 0 2002 0 VC_CAPACITOR PARAMS: C_1V=100P
G37A2 0 37A2 37A 0 1m
R37A2 37A2 0 1K
E20003 2003 0 TABLE { V(2000,0) } ((1,0.00001)(2,0.00001)(5,0.00001)(10,0.00001)(100,0.000001))
X20003 37A3 0 2003 0 VC_CAPACITOR PARAMS: C_1V=100P
G37A3 0 37A3 37A2 0 1m
R37A3 37A3 0 1K
*************
G38 0 38 37A3 0 1m
R38 39 0 1K
L38 38 39 159N
E38 35 0 38 0 1
G35 33 0 TABLE {V(35,3)} ((-1,-1n)(0,0)(50.0,1n))50.2,10))
G36 33 0 TABLE {V(35,4)} ((-50.2,-10)((-50.0,-1n)(0,0)(1,1n))
*
* Output Stage
R80 50 0 100MEG
G50 0 50 57 96 2
R58 57 96 0.50
* Impedance 0.9KOhms
R57 57 0 0.9K
C58 5 0 2.00P
* For 0.9K Ohms
* For R57 Output in Ohms
G57 0 57 POLY(3) 3 0 4 0 35 0 0 {0*0.00075/(900/500)} {0*0.001/(900/500)} {0.002/(900/500)}
GD55 55 57 TABLE {V(55,57)} ((-2m,-1)(-1m,-1m)(0,0)(10,1n))
GD56 57 56 TABLE {V(57,56)} ((-2m,-1)(-1m,-1m)(0,0)(10,1n))
E55 55 0 VALUE { -11.5M + V(3) * 1 + V(51) * -34.7M }
E56 56 0 VALUE { 12.5M + V(4) * 1 + V(52) * -32.6M }
R51 51 0 1k
R52 52 0 1k
GD51 50 51 TABLE {V(50,51)} ((-10,-1n)(0,0)(1m,1m)(2m,1))
GD52 50 52 TABLE {V(50,52)} ((-2m,-1)(-1m,-1m)(0,0)(10,1n))
G53 3 0 VALUE { -50.0U + V(51) * 1M }
G54 0 4 VALUE { -50.0U + V(52) * -1M }
*
* Current Limit
G99 96 5 99 0 1
R98 0 98 1 TC=3.67M,-4.5U
G97 0 98 TABLE { V(96,5) } ((-13.2,-8.00M)(-1.00M,-7.42M)(0,0)(1.00M,6.51M)(13.2,14.00M))
E97 99 0 VALUE { V(98) * LIMIT((( V(3) - V(4) ) * 716M + -432M), 0.00, 1E6 ) * LIMIT((( V(3) - V(4) ) * 1.42 + -1.85), 0, 1) }
D98 4 5 DESD
D99 5 3 DESD
* Models
.MODEL NMI NMOS(L=2.00U W=42.0U KP=200U LEVEL=1 )
.MODEL DESD D N=1 IS=1.00E-15
.MODEL DN1 D IS=1P KF=55.0E-15 AF=1
.MODEL REXP RES TCE= 5.32477
.ENDS OUTX
.SUBCKT VC_CAPACITOR 1 2 3 4 PARAMs: C_1V=1E-6
R1 1 5 1E-6
VC 5 6 0
EC 6 2 Value = {V(7) / ( V(3,4)*C_1V) }
G1 0 7 Value = {I(VC)}
C1 7 0 1
R2 7 0 1E9
.ends VC_CAPACITOR
.SUBCKT VC_INDUCTOR 1 2 3 4 PARAMs: L_1V=1E-6
GC 1 2 Value = {V(5) / ( V(3,4)*L_1V) }
G1 0 5 Value = {V(1,2)}
C1 5 0 1
R1 5 0 1E9
.ends VC_INDUCTOR
And I think there are some incompatibilities that I am having a hard time chasing down. When this model is disabled, the circuit simulates fine (very boring-ly, since the main component is a dummy, but it works). When the component is enabled, even opening the SPICE window pops an error box
Could not find a parameter named ‘GM’ in simulation model of type ‘’
I’m running in PSpice and LTSpice compatability mode, but the error in the console output box is:
Note: Compatibility modes selected: ps lt a
Circuit: KiCad schematic
Netlist line no. 0:
Closing "}" not found.
Netlist line no. 0:
Closing "}" not found.
Please check your input netlist.
Error: ngspice.dll cannot recover and awaits to be detached
Note: can't find the initialization file spinit.
******
** ngspice-39 shared library
** Creation Date: Feb 13 2023 06:17:03
******
Note: No compatibility mode selected!
Circuit: *
Warning: No job (tran, ac, op etc.) defined:
run simulation not started
Background thread stopped with timeout = 0
Reset re-loads circuit *
Circuit: *
The same “Could not find a parameter named ‘GM’” error box pops up when attempting to do most actions in the SPICE window, as well as when editing the simulation model in the symbol properties in the schematic.
The thing I’m most confused about is that when attempting to set the GM parameter in the simulation model editor, it resets when hitting “OK”. I’ve attempted to set it directly in Sim.Params as you can see above, but that doesn’t seem to work.
When the part is disabled, the simulation runs fine, with the following netlist:
.title KiCad schematic
.save all
.probe alli
.dc R1 100 1k 100
Rg1 Net-_U1-VFG_ GND 1k
Rf1 +5V Net-_U1-VFG_ 200k
R4 Net-_U1-VIM_ GND 1k
C1 +5V GND 0.1p
R1 +5V Net-_U1-VIP_ 1k
R3 +5V Net-_U1-VIM_ 1k
R2 Net-_U1-VIP_ GND 1k
V1 +5V GND DC 5
.end
Any ideas here? My best guess is that there’s a compatibility issue in the IC model but I don’t have nearly enough experience to know where to start.
