TLC225X_08 Datasheet, PDF (47/74 Pages) Texas Instruments – Advanced LinCMOS RAIL-TO-RAIL VERY LOW-POWER OPERATIONAL AMPLIFIERS

TLC225x, TLC225xA
Advanced LinCMOS RAIL-TO-RAIL
VERY LOW-POWER OPERATIONAL AMPLIFIERS
SLOS176D – FEBRUARY 1997 – REVISED MARCH 2001
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):
D Maximum positive output voltage swing
D Maximum negative output voltage swing
D Slew rate
D Quiescent power dissipation
D Input bias current
D Open-loop voltage amplification
D Unity-gain frequency
D Common-mode rejection ratio
D Phase margin
D DC output resistance
D AC output resistance
D 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).
VCC ₊
RP
2
IN –
IN +
1
3
RSS
ISS
10
DP
J1
J2
11
RD1
12
C1
RD2
+
VC
R2
–
53
DC
99
EGND ₊
9
+
VB
–
FB
–
C2
6
GCM
GA
DLN
RO2 ⁹⁰
HLIM
+ _DLP
–
7
+
VLIM
–
8
91
+
VLP
–
92
–
VLN
+
VCC _–
VAD
+
–
4
60
DE
54
–+
VE
RO1
5
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
4 3 DX
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
Figure 61. Boyle Macromodel and Subcircuit
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