Op Amp Detailed
Detailed model of an operational amplifier
Description
Connections
Parameters
The OpAmp Detailed (or Op Amp Detailed) component is a general operational amplifier model. The model consists of five functional stages: input, gain, frequency response, slew rate, and output. Each stage contains data sheet parameters to be modeled.
Name
Modelica ID
p
Positive pin of the input port
m
Negative pin of the input port
outp
Output pin
psupply
Positive output voltage limitation
p_supply
msupply
Negative output voltage limitation
m_supply
Default
Units
Input
Rdm
2·106
Ω
Input resistance (differential input mode)
Rcm
2·109
Input resistance (common mode)
Cin
1.4·10−12
F
Input capacitance
Vos
0.001
V
Input offset voltage
Ib
8·10−8
A
Input bias current
Ios
2·10−8
Input offset current
Gain
vcp
0
Correction value for limiting by p_supply
vcm
Correction value for limiting by msupply
Avd0
106
Differential amplifier [dB]
CMRR
90
Common-mode rejection [dB]
Frequency Response
fp1
5
Hz
Dominant pole
fp2
Pole frequency
fp3
2·107
fp4
1·108
fz
5·106
Zero frequency
Slew Rate
srp
0.5·106
Vs
Slew rate for increase
sr_p
srm
Slew rate for decrease
sr_m
Ts
1.2·10−6
s
sampling time
Output
Rout
75
Output resistance
Imaxso
0.025
Maximal output current (source current)
Imaxsi
Maximal output current (sink current)
See Also
Analog Components
Electrical Library
Operational Amplifiers
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