TLC227x, TLC227xA

Advanced LinCMOS

™ RAIL-TO-RAIL

OPERATIONAL AMPLIFIERS

SLOS190B – FEBRUARY 1997 – REVISED JULY 1999

45

POST OFFICE BOX 655303

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 59 were generated using

simulations of the following key parameters can be generated to a tolerance of 20% (in most cases):

NOTE 5: G. R. Boyle, B. M. Cohn, D. O. Pederson, and J. E. Solomon, “Macromodeling of Intergrated Circuit Operational Amplifiers”,

IEEE Journal

of Solid-State Circuits, SC-9, 353 (1974).

OUT

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

.SUBCKT TLC227x 1 2 3 4 5

C1

11

1214E–12

C2

6

760.00E–12

DC

5

53DX

DE

54

5DX

DLP

90

91DX

DLN

92

90DX

DP

4

3DX

EGND

99

0POLY (2) (3,0) (4,) 0 .5 .5

FB

99

0POLY (5) VB VC VE VLP VLN 0

+ 984.9E3 –1E6 1E6 1E6 –1E6

GA

6

011 12 377.0E–6

GCM 0 6 10 99 134E–9

ISS

3

10DC 216.OE–6

HLIM

90

0VLIM 1K

J1

11

210 JX

J2

12

110 JX

R2

6

9100.OE3

RD1

60

112.653E3

RD2

60

122.653E3

R01

8

550

R02

7

9950

RP

3

44.310E3

RSS

10

99925.9E3

VAD

60

4–.5

VB

9

0DC 0

VC 3 53 DC .78

VE

54

4DC .78

VLIM

7

8DC 0

VLP

91

0DC 1.9

VLN

0

92DC 9.4

.MODEL DX D (IS=800.0E–18)

.MODEL JX PJF (IS=1.500E–12BETA=1.316E-3

+ VTO=–.270)

.ENDS

VCC +

RP

IN –

2

IN +

1

VCC –

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

DIP

91

DIN

92

VIN

VIP

99

7

Figure 59. Boyle Macromodel and Subcircuit

PSpice and Parts are trademarks of MicroSim Corporation.

Macromodels, simulation models, or other models provided by TI,

directly or indirectly, are not warranted by TI as fully representing all

of the specification and operating characteristics of the

semiconductor product to which the model relates.