TLV2702

TLV2704

SLOS340B – DECEMBER 2000 – REVISED AUGUST 2001

17

www.ti.com

APPLICATION INFORMATION

amplifier macromodel information

Macromodel information provided was derived using Microsim Parts

 Release 8, the model generation

software used with Microsim PSpice

. The Boyle macromodel (see Note 2) and subcircuit in Figure 41 are

information, output simulations of the following key parameters can be generated to a tolerance of 20% (in most

cases):

NOTE 3: 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).

.subckt 270X_5V–X 1 2 3 4 5

*

c1

11 12 9.8944E–12

c2

6

7

30.000E–12

cee

10 99 8.8738E–12

dc

5

53 dy

de

54 5

dy

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 61.404E6 –1E3 1E3 61E6 –61E6

ga

6

0

11 12 1.0216E–6

gcm

0

6

10 99 10.216E–12

iee

10 4

dc 54.540E–9

ioff

0

6

dc 5e–12

hlim

90 0

vlim 1K

q1

11 2

13 qx1

q2

12 1

14 qx2

r2

6

9

100.00E3

rc1

3

11 978.81E3

rc2

3

12 978.81E3

re1

13

10 30.364E3

re2

14

10 30.364E3

ree

10

99 3.6670E9

ro1

8

5

10

ro2

7

99 10

rp

3

4

1.4183E6

vb

9

0

dc 0

vc

3

53 dc .88315

ve

54

4

dc .88315

vlim

7

8

dc 0

vlp

91

0

dc 540

vln

0

92 dc 540

.model dx

D(Is=800.00E–18)

.model dy

D(Is=800.00E–18 Rs=1m Cjo=10p)

.model qx1 NPN(Is=800.00E–18 Bf=27.270E21)

.model qx2 NPN(Is=800.0000E–18 Bf=27.270E21)

.ends

13

rp

IN+

rc1

rc2

ree

egnd

fb

ro2

ro1

vlim

VOUT

ga

ioff

gcm

vb

c1

dc

iee

re2

re1

dp

VCC–

VCC+

IN–

q1

q2

cee

c2

ve

de

dlp

dln

vln

hlim

vlp

14

10

4

2

1

11

12

3

53

54

96

8

5

7

91

90

92

vc

99

+

+

+

+

+

+

+

–

–

–

–

–

–

–

–

+

r2

Figure 41. Boyle Macromodels and Subcircuit

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