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1993-01-11
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COMLINEAR CORPORATION MACRO-MODELS DISKETTE
4800 Wheaton Drive
Fort Collins, CO. 80525
303-226-0500
These files are available from Comlinear Corporation,
located in Fort Collins, Colorado. Comlinear is a
manufacturer and supplier of high-performance analog
signal processing components. Comlinear's signal
conditioning product line includes high-speed hybrid and
monolithic operational amplifiers, buffers,
multiplexers, automatic gain control integrated circuits,
track/hold amplifiers, digital-to-analog and analog-to-
digital converters. Comlinear is focused on developing
products that make a significant contribution to solving
customer high speed problems.
Introduction
This disk is a collection of Pspice models for Comlinear
amplifiers. Additional macro-models for existing
products, and new products will be available for
Comlinear customers. Contact Comlinear Corporation
(303-226-0500) for release dates of the desired models
not found on this diskette. There is one level of macro-
model, intended to provide the customer with the ability
to model Comlinear parts on Spice platforms. Comlinear
provides models for IBM compatible computers using
analysis programs that accept Spice formats. Comlinear
does not assume responsibility for designs created from these
macro-models. These files give typical modeled
performance. Before designs are released to production,
Comlinear suggest that topologies be verified through
prototyping the circuit. The part to part performance of
Comlinear op amps are specified in the most current
data sheets (Ref. 1). For more detailed information
concerning the use of these models refer to application note
OA-18.
Files on this disk are labeled using the following format:
TABLE I, MACROMODEL SUBCIRCUIT FILES ON THIS DISKETTE
file name amplifier description
CLC400.CIR low gain wide bandwidth monolithic
CLC401.CIR high gain wide bandwidth monolithic
CLC402.CIR low gain with fast 14-bit settling
CLC406.CIR low cost low power monolithic
CLC410.CIR wide bandwidth monolithic w/disable
CLC430.CIR +/-15V low gain video monolithic
CLC404.CIR wideband, high-slew rate
CLC409.CIR very wideband, low distortion
CLC414.CIR quad, low power monolithic
CLC415.CIR quad, wideband monolithic
CLC420.CIR unity gain stable voltage feedback
CLC425.CIR low noise voltage feedback monolithic
CLC501.CIR high gain, output limiting
CLC502.CIR low gain, output limiting 14bit settling
CLC505.CIR adjustable supply current
CLC520.CIR amplifier with voltage controlled gain
The macro-models are found in the root directory of the
data disk supplied.
START UP INSTRUCTIONS
Comlinear suggests that the user make back up copies of spice
files to another floppy and copy all models of interest to a
library on the hard disk. If the library directory is
not in the path of the spice program, the user should set
the path in the autoexec.bat for easier excess. The
include statement in Pspice .INC should be used in the
simulation file to include the macro-models subcircuit.
example " .INC CLC400.CIR"
OP AMP MACRO-MODELS
The op amp macro-models were created for simulation
software that take Pspice compatible files written in
ASCII format on IBM-compatible PC's. For detailed
information on using PSpice contact MicroSim (see ref.
2). The op amp macro-models are designed as subcircuits
to allow the engineer simplified incorporation of these
models into larger circuits. A listing of any op amp
subcircuit may be obtained by printing the file to a
local printer.
The subcircuit node assignments match the device pin-outs as
shown in the individual device data sheets. An example is an
8 pin op amp.
* Connections: NON-INVERTING INPUT PIN
* | INVERTING INPUT PIN
* | | OUTPUT
* | | | +Vcc
* | | | | -Vcc
* | | | | |
.SUBCKT (NAME) 3 2 6 7 4
Several schematic capture software require a different connection
order for inputs, outputs, supplies, etc., that might be different
than what is used by Comlinear. If the existing pin connection order
creates a problem, then changing the order in the subckt (name) to
allow captibility will not effect modeling of the part.
PERFORMANCE RESULTS
When subsitutions of current feedback op amps are made for voltage
feedback op amps the results might not be acceptable. Refer to OA-13
for a tutorial on current feedback op amp design.
PARAMETERS MODELED
The following typical performance parameters are modeled by
the subcircuits.
DC Effects
* VIO, IBI, IBN
* Supply current vs. Supply voltages
* Common Mode Input/Output Voltage range
* Load current from supplies
AC Effects
* Frequency response vs. gain & load.
* Open loop gain & phase
* Noise
* Small signal Input/Output Impedance
* CMRR
Time Domain
* Rise / fall times
* Slew Rates
Special Features (where applicable)
* Output Clamping
* Supply Current Adjustment
* Offset voltage adjust
* Disable / Enable times
PARAMETERS NOT MODELED
* Part to Part performance variation
* Variation in performance vs.temperature.
* Fine scale settling performance
* Harmonic distortion
* Differential gain
* Differential phase
* Thermal tail
* Overdrive recovery time
* PSRR
GLOSSARY OF SPECIFICATIONS SYMBOLS IN DEVICE DATA SHEETS
SSBW small signal bandwidth
LSBW large signal bandwidth
GFPL gain flatness peaking low
GFPH gain flatness peaking high
GFR gain flatness rolloff
TRS rise time for small signal
TRL rise time for large signal
TS settling time for step response
OS percent of overshoot
SR slew rate
HD2 2nd harmonic distortion
HD3 3rd harmonic distortion
SNF noise floor in dbm(1Hz) (input referred)
INV integrated noise in micro-volts (input referred)
VIO input offset voltage
DVIO average temperature coefficient of VIO
IBN input bias current non-inverting
DIBN average temperature coefficient of IBN
IBI input bias current inverting
DIBI average temperature coefficient IBI
PSRR power supply rejection ratio
CMRR common mode rejection ration
ICC supply current no load
RIN non-inverting input resistance
CIN non-inverting input capacitance
RO output impedance closed loop at DC
VO output voltage range no load
CMIR common mode input range
IO output current
Vcc power supply voltages
TOFF disable time
TON enable time
VDIS voltage to disable output
VEN voltage to enable output
IDIS current to disable output
IEN current to enable output
OSD off isolation (part disabled)
ROD output impedance, disabled
COD output impedance, disabled
OVC overshoot voltage clamp in percent
TSO overload recovery time from clamp
CDR Vio drift after recovery from clamp
VOC voltage clamp accuracy
ICL input bias current on clamp inputs
CBW -3dB bandwidth of clamp
CMC useful clamping voltage range
NOTICE
The information provided within these file is believed to
be reliable. Comlinear assumes no responsibility
for alternations, omissions or inaccuracies. Comlinear
assumes no responsibility for the use of this
information, and all use of such information shall be
entirely at the user's own risk. Comlinear does not
grant licenses or patent rights to any of the circuits
described within this document.
REFERENCES
1) Comlinear Data Book of Standard Products.
2) MicroSim Corporation, 20 Fairbanks, Irvine, CA 92718
USA, (714) 770-3022, (800) 245-3022.