home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
ShareWare OnLine 2
/
ShareWare OnLine Volume 2 (CMS Software)(1993).iso
/
cad
/
opampdem.zip
/
CF.LIB
< prev
next >
Wrap
Text File
|
1993-03-02
|
7KB
|
244 lines
* Library of National Semiconductor Corp. CURRENT-FEEDBACK
* Macromodels. Version 2.5
*
* This library of macromodels is being supplied to users as
* an aid to circuit designs. While it reflects reasonably
* close similarity to the actual device in terms of
* performance, it is not suggested as a replacement for
* breadboarding. Simulation should be used as a supplement
* to traditional lab testing.
*
* Users should very carefully note the following factors
* regarding these models:
*
* -- Model performance in general will reflect typical
* baseline specs for a given device, and certain aspects of
* performance may not be modeled fully.
*
* -- While reasonable care has been taken in their
* preparation, we cannot be responsible for correct
* application on any and all computer systems.
*
* -- Model users are hereby notified that these models are
* supplied "as is", with no direct or implied responsibility
* on the part of National Semiconductor for their operation
* within a customer circuit or system. Further, National
* Semiconductor reserves the right to change these models
* without prior notice.
*
* -- In all cases, the current data sheet information for a
* given real device is your final design guideline, and is
* the only actual performance guarantee. For further
* technical information, refer to individual device data
* sheets.
*
***********************Modeled and tested*******************
*Supply voltage dependant input offset voltage (Vos).
*Temperature dependant input offset voltage (TCVos).
*Supply voltage dependant input bias current (Ib+ & Ib- PSR).
*Temperature dependant input bias current (TCIb+ & TCIb-).
*Input voltage dependant input bias current (Ib- CMRR).
*Non-inverting input resistance.
*Asymmetrical output swing.
*Output short circuit current (Isc).
*Supply voltage dependant supply current.
*Quiescent and dynamic supply current.
*Input voltage dependant input slew rate.
*Input voltage dependant output slew rate.
*Multiple poles and zeros in open-loop transimpedance (Zt).
*Supply voltage dependant input buffer impedance.
*Supply voltage dependant open-loop voltage gain (Avol).
*Feedback resistance dependant bandwidth.
*Accurate small-signal pulse response.
*Large-signal pulse response.
*DC and AC common mode rejection ratio (CMRR).
*DC and AC power supply rejection ratio (PSRR).
*White and 1/f voltage noise (en).
*White and 1/f current noise (in).
*********************Modeled but not tested*****************
*Asymmetrical output slew rate.
*Input common mode input range.
*Supply voltage dependant input slew rate.
***************************Not modeled**********************
*Third-order large signal effects.
*Self heating effects.
*
* Your feedback and suggestions on these (and future) models
* will be appreciated.
*
* Models developed by:
* David Hindi
* National Semiconductor For information on the models, contact:
* 2900 Semiconductor Dr. Linear Applications
* Santa Clara, CA 95052 (408) 721-3877
* M/S C2500
* FAX (408) 721-7321 For ordering information, contact:
* Customer Response Center
* (408) 721-4902
* ---------------------------------------------------------
*//////////////////////////////////////////////////////////
*LM6181 CURRENT FEEDBACK OP-AMP MACRO-MODEL
*//////////////////////////////////////////////////////////
*
* connections: non-inverting input
* | inverting input
* | | positive power supply
* | | | negative power supply
* | | | | output
* | | | | |
* | | | | |
.SUBCKT LM6181 1 2 99 50 40
*
*Features: (TYP.)
*High bandwidth = 100MHz
*High slew rate = 2000V/uS
*Current Feedback Topology
*NOTE: Due to the addition of PSRR effects, model must be operated
* with symetrical supply voltages. To avoid this limitation
* and disable the PSRR effects, see EOS below.
*
****************INPUT STAGE**************
*
GI1 99 5 POLY(1) 99 50 243.75U 2.708E-6
GI2 4 50 POLY(1) 99 50 243.75U 2.708E-6
FI1 99 5 VA3 100
FI2 4 50 VA4 100
Q1 50 3 5 QPN
Q2 99 3 4 QNN
GR1 5 6 5 6 2.38E-4
*^4.2K noiseless resistor
C1 6 99 .468P
GR2 4 7 4 7 2.38E-4
*^4.2K noiseless resistor
C2 7 50 .468P
GR3 99 8 99 8 1.58E-3
*^633ohm noiseless resistor
V1 99 10 .3
RE1 10 30 130
D1 30 8 DX
GR4 50 9 50 9 1.58E-3
*^633ohm noiseless resistor
V2 11 50 .3
RE2 11 31 150
D2 9 31 DX
Q3 8 6 2 QNI
Q4 9 7 2 QPI
DS1 3 12 DY
VA3 12 5 0
DS2 13 3 DY
VA4 4 13 0
GR6 1 99 1 99 5E-8
*^20MEG noiseless resistor
GR7 1 50 1 50 5E-8
*^20MEG noiseless resistor
GB1 1 99 POLY(2) 99 50 56 0 -1.2E-6 4E-8 1E-3
FN1 1 0 V18 1
GB2 99 2 POLY(3) 99 50 1 49 55 0 18.5E-6 -1.5E-7 -1E-7 -1E-6
FN2 2 0 V17 1
EOS 3 1 POLY(5) 99 50 45 0 47 0 57 0 59 61 -2.8E-3 9.3E-5 1 1 1 1
*To run on asymetrical supplies, change to 0.................^.^
CIN1 1 0 2P
CIN2 2 0 3.75P
*
**************SECOND STAGE**************
*
I3 99 50 4.47M
R8 99 49 7.19K
R9 49 50 7.19K
V3 99 16 1.7
D3 15 16 DX
D4 17 15 DX
V4 17 50 2.0
EH 99 98 99 49 1
G1 98 15 POLY(2) 99 8 50 9 0 1.58E-3 1.58E-3
*Fp1 = 27.96 KHz
R5 98 15 2.372MEG
C3 98 15 2.4P
*
***************POLE STAGE***************
*
*Fp=250MHz
G2 98 20 15 49 1E-3
R14 98 20 1K
C4 98 20 .692P
*
***************POLE STAGE***************
*
*Fp=250 MHz
G3 98 21 20 49 1E-3
R15 98 21 1K
C5 98 21 .692P
*
***************POLE STAGE***************
*
*Fp=275 MHz
G4 98 22 21 49 1E-3
R16 98 22 1K
C6 98 22 .5787P
*
***************POLE STAGE***************
*
*Fp=500 MHz
G5 98 23 22 49 1E-3
R17 98 23 1K
C7 98 23 .3183P
*
***************PSRR STAGE***************
*
G10 0 45 99 0 1.413E-4
L3 44 45 26.53U
R25 44 0 10
G11 0 47 50 0 1.413E-4
L4 46 47 2.27364U
R26 46 0 10
*
************THERMAL EFFECTS*************
*
I12 0 55 1
R27 0 55 10 TC=3.453E-3 7.93E-5
I13 0 56 1E-3
R28 0 56 1.5 TC=9.303E-4 8.075E-5
I14 0 57 1E-3
R29 0 57 3.34 TC=3.111E-3
*
************* NOISE SOURCES*************
*
V15 58 0 .1
D9 58 59 DN
R30 59 0 726.4
V16 60 0 .1
D10 60 61 DN
R31 61 0 726.4
V17 62 0 0
R32 62 0 73.6
V18 63 0 0
R33 63 0 1840
*
**************OUTPUT STAGE**************
*
F6 99 50 VA7 1
F5 99 35 VA8 1
D7 36 35 DX
VA7 99 36 0
D8 35 99 DX
E1 99 37 99 23 1
VA8 37 38 0
R35 38 40 50
V5 33 40 5.3V
D5 23 33 DX
V6 40 34 5.3V
D6 34 23 DX
CF1 40 2 2.1P
*
***************MODELS USED**************
*
.MODEL QNI NPN(IS=1E-14 BF=10E4 VAF=62.9 KF=6.7E-14)
.MODEL QPI PNP(IS=1E-14 BF=10E4 VAF=62.9 KF=6.7E-14)
.MODEL QNN NPN(IS=1E-14 BF=10E4 VAF=62.9 KF=4.13E-13)
.MODEL QPN PNP(IS=1E-14 BF=10E4 VAF=62.9 KF=4.13E-13)
.MODEL DX D(IS=1E-15)
.MODEL DY D(IS=1E-17)
.MODEL DN D(KF=1.667E-9 AF=1 XTI=0 EG=.3)
*
.ENDS