9

EL400C

200MHz Current Feedback Amplifier

EL400C Macromodel

* Revision A. March 1992

* Enhancements include PSRR, CMRR, and Slew Rate Limiting

* Connections: +input

*

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-input

*

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+Vsupply

*

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-Vsupply

*

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output

*

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.subckt M400

3

2

7

4

6

*

* Input Stage

*

e1 10 0 3 0 1.0

vis 10 9 0V

h2 9 12 vxx 1.0

r1 2 11 50

l1 11 12 48nH

iinp 3 0 8µA

iinm 2 0 8µA

*

* Slew Rate Limiting

*

h1 13 0 vis 600

r2 13 14 1K

d1 14 0 dclamp

d2 0 14 dclamp

*

* High Frequency Pole

*

*e2 30 0 14 0 0.00166666666

l3 30 17 0.1µH

c5 17 0 0.1pF

r5 17 0 500

*

* Transimpedance Stage

*

g1 0 18 17 0 1.0

rol 18 0 150K

cdp 18 0 2.8pF

*

* Output Stage

*

q1 4 18 19 qp

q2 7 18 20 qn

q3 7 19 21 qn

q4 4 20 22 qp

r7 21 6 2

r8 22 6 2

ios1 7 19 2.5mA

ios2 20 4 2.5mA

*

* Supply Current

*

ips 7 4 9mA

*

* Error Terms

*

ivos 0 23 5mA

vxx 23 0 0V

e4 24 0 3 0 1.0

e5 25 0 7 0 1.0