5
FN6262.1
March 30, 2007
Typical Performance Curves
FIGURE 1. GAIN vs FREQUENCY vs Rf AND Rg
FIGURE 2. GAIN vs FREQUENCY vs VOUT
FIGURE 3. ISL55290 GAIN vs FREQUENCY vs RL
FIGURE 4. CLOSED LOOP GAIN vs FREQUENCY
FIGURE 5. GAIN vs FREQUENCY vs VS
FIGURE 6. ISL55190 GAIN vs FREQUENCY vs CL
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
FREQUENCY (MHz)
Rf = 402, RG = 100
Rf = 100, RG = 24.9
AV = 5
RL = 1k
VOUT = 100mVP-P
Rf = 604, RG = 150
.01
0.1
1.0
10
100
1k
Rf = 1.21k, RG = 301
NORMALIZED
GAI
N
(d
B)
-8
-7
-6
-5
-4
-3
-2
-1
0
1
NOR
M
ALIZED
GAIN
(dB)
VOUT = 1V
VOUT = 100mV
VOUT = 200mV
FREQUENCY (MHz)
AV = 5
Rf = 402
Rg = 100
RL = 1k
0.1
1.0
10
100
1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
.01
0.1
1.0
10
100
1k
FREQUENCY (MHz)
AV = 5
CL = 1.2pF
VP-P = 100mV
Cg = 0.8pF
Rg = 100
Rf = 402
RL= 249
RL= 499
RL= 1000
RL= 100
NORMALIZ
E
D
GAI
N
(
d
B)
0
10
20
30
40
50
60
70
CLOS
E
D
L
O
P
GA
IN
(
d
B)
AV = 1000 Rf/Rg = 100k/100
AV = 100 Rf/Rg = 10k/100
AV = 10 Rf/Rg = 909/100
AV = 5 Rf/Rg = 402/100
FREQUENCY (MHz)
RL = 1k
CL = 2.2pF
Cg = 2.5pF
VP-P = 100mV
0.1
1.0
10
100
1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
FREQUENCY (MHz)
AV = 5
RL = 1k
VP-P = 100mV
CG = 1.6pF
RG = 100
RF = 402
VS= 5.0V
AV = 5
RL = 1k
VOUT = 100mVP-P
Cg = 1.6pF
Rg = 100
Rf = 402
VS = 5.0V
.01
0.1
1.0
10
100
1k
N
O
RMAL
IZED
GAI
N
(d
B)
VS = 2.4V
FREQUENCY (MHz)
NORMALIZ
E
D
GAIN
(dB)
CL = 13.2pF
CL = 8.0pF
CL = 4.5pF
CL = 2.2pF
CL = 1.2pF
AV = 5
RL = 1k
Rf = 402
Rg = 100
VOUT = 100mVP-P
.01
0.1
1.0
10
100
1k
-3
-1
0
1
2
3
-2
4
-4
-5
-6
ISL55190, ISL55290