9

EL4430,EL4431 Macromodel

*Macromodel

*This is a Pspice-compatible macromodel of the EL4430 video instrumentation amplifier assembled

*as a sub circuit. The pins are numbered sequentially as the subcircuit interface nodes. T1 is a

*transmission line which provides a good emulation of the more complicated real device. This model

*correctly displays the characteristics of input clipping, frequency response, CMRR both AC and DC,

*output clipping, output sensitivity to capacitive loads, gain accuracy, slewrate limiting, input bias

*current and impedance. The macromodel does not exhibit proper results with respect to supply current,

*supply sensitivities, offsets, output current limit, differential gain or phase, nor temperature.

*Connections:

IN+

|

VIN-

|

|

V-

|

|

|

V+

|

|

|

|

VFB

|

|

|

|

|

VREF

|

|

|

|

|

|

VOUT

|

|

|

|

|

|

|

GND

|

|

|

|

|

|

|

|

.SUBCKT EL4430/EL

3

4

2

7

6

5

8

1

***

***EL4430macromodel***

***

i1710.00103

i2711.00103

i3712.00105

i4713.00105

v17143

v27153

v31923

******

c1111.03p

c2121.03p

c31812.1p

c416170.6p

******

r110112000

r212132000

r310130e6

r41621000

r51721000

r61811.27e6

r7232120

r8218100

******

1121850n

******

d11114diode

d21214diode

d31815diode

d41918diode

.modeldioded(tt=120n)

******

q1163101pnp

q2174111pnp

q3165121pnp

q4176131pnp

.modelpnppnp(bf=90va=44tr=50n)

******

g11811716.0005

EL4430, EL4431