Datasheet

TLC225x, TLC225xA
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER OPERATIONAL AMPLIFIERS
SLOS176D – FEBRUARY 1997 – REVISED MARCH 2001
47
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
macromodel information
Macromodel information provided was derived using MicroSim Parts, the model generation software used
with MicroSim PSpice. The Boyle macromodel (see Note 5) and subcircuit in Figure 61 are generated using
the TLC225x typical electrical and operating characteristics at T
A
= 25°C. Using this information, output
simulations of the following key parameters can be generated to a tolerance of 20% (in most cases):
Maximum positive output voltage swing
Maximum negative output voltage swing
Slew rate
Quiescent power dissipation
Input bias current
Open-loop voltage amplification
Unity-gain frequency
Common-mode rejection ratio
Phase margin
DC output resistance
AC output resistance
Short-circuit output current limit
NOTE 5: G. R. Boyle, B. M. Cohn, D. O. Pederson, and J. E. Solomon, “Macromodeling of Integrated Circuit Operational Amplifiers”, IEEE Journal
of Solid-State Circuits, SC-9, 353 (1974).
OUT
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+–
.SUBCKT TLC225x 1 2 3 4 5
C1 11 12 6.369E–12
C2 6 7 25.00E–12
DC 5 53 DX
DE 54 5 DX
DLP 90 91 DX
DLN 92 90 DX
DP 43DX
EGND 99 0 POLY (2) (3,0) (4,0) 0 .5 .5
FB 7 99 POLY (5) VB VC VE VLP
+ VLN 0 57.62E6 –60E6 60E6 60E6 –60E6
GA 6 0 11 12 26.86E–6
GCM 0 6 10 99 2.686E–9
ISS 3 10 DC 3.1E–6
HLIM 90 0 VLIM 1K
J1 11 2 10 JX
J2 12 1 10 JX
R2 6 9 100.0E3
RD1 60 11 37.23E3
RD2 60 12 37.23E3
R01 8 5 84
R02 7 99 84
RP 3 4 71.43E3
RSS 10 99 64.52E6
VAD 60 4 –.5
VB 9 0 DC 0
VC 3 53 DC .605
VE 54 4 DC .605
VLIM 7 8 DC 0
VLP 91 0 DC –.235
VLN 0 92 DC 7.5
.MODEL DX D (IS=800.0E–18)
.MODEL JX PJF (IS=500.0E–15 BETA=139E–6
+ VTO=–.05)
.ENDS
V
CC+
RP
IN –
2
IN+
1
V
CC–
VAD
RD1
11
J1 J2
10
RSS ISS
3
12
RD2
60
VE
54
DE
DP
VC
DC
4
C1
53
R2
6
9
EGND
VB
FB
C2
GCM
GA
VLIM
8
5
RO1
RO2
HLIM
90
DLP
91
DLN
92
VLNVLP
99
7
Figure 61. Boyle Macromodel and Subcircuit
PSpice and Parts are trademarks of MicroSim Corporation.