EL2170C EL2270C EL2470C
70 MHz 1 mA Current Mode Feedback Amplifiers
EL2170C EL2270C EL2470C Macromodel
Revision A March 1995
AC characteristics used RfeRge1KX RLe150X
Connections
ainput
l
binput
l l aVsupply
l l l bVsupply
l l l l output
lllll
subckt EL2170 el 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 11 165
l1 11 12 25nH
iinp 3 0 0 5uA
iinm 2 0 4uA
r12 3 0 4Meg
Transimpedance Stage
g1 0 18 17 0 1 0
rol 18 0 400K
cdp 18 0 1 9pF
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 4
r8 22 6 4
ios1 7 19 0 4mA
ios2 20 4 0 4mA
Supply Current
ips 7 4 1nA
Slew Rate Limiting
Error Terms
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 5uH
c5 17 0 0 69pF
r5 17 0 300
ivos 0 23 2mA
vxx 23 0 0V
e4 24 0 3 0 1 0
e5 25 0 7 0 1 0
e6 26 0 4 0 b1 0
r9 24 23 0 316K
r10 25 23 3 2K
r11 26 23 3 2K
Models
model qn npn(ise5e-15 bfe200 tfe0 01nS)
model qp pnp(ise5e-15 bfe200 tfe0 01nS)
model dclamp d(ise1e-30 ibve0 266
a bve1 3v ne4)
ends
15