
ISL28107, ISL28207, ISL28407
23
FN6631.7
February 25, 2013
Characterization vs Simulation Results
FIGURE 58. CHARACTERIZED INPUT NOISE VOLTAGE
FIGURE 59. SIMULATED INPUT NOISE VOLTAGE
FIGURE 60. CHARACTERIZED CLOSED LOOP GAIN vs FREQUENCY
FIGURE 61. SIMULATED CLOSED LOOP GAIN vs FREQUENCY
FIGURE 62. CHARACTERIZED CLOSED LOOP GAIN vs RL
FIGURE 63. SIMULATED CLOSED LOOP GAIN vs RL
FREQUENCY (Hz)
10
100
1000
INPUT
NOI
SE
VO
L
T
A
G
E
(nV/
√Hz
)
0.1
1
10
100
1k
10k
100k
V+ = ±19V
AV = 1
FREQUENCY (Hz)
INP
U
T
NOI
SE
VO
L
T
AGE
(nV/
√Hz)
100m
1.0
10
100
1k
10k
100k
10
100
1000
FREQUENCY (Hz)
GAI
N
(d
B)
100k
1M
10M
10
10k
1k
100
-20
-10
0
10
20
30
40
50
60
70
AV = 1
AV = 100
AV = 1000
V+ = ±20V
VOUT = 100mVP-P
CL = 4pF
RL = 10k
AV = 10
Rg = 1k, Rf = 100k
Rg = 100, Rf = 100k
Rg = OPEN, Rf = 0
Rg = 10k, Rf = 100k
10
100
10k
100k
1M
10M
-20
0
20
40
70
60
FREQUENCY (Hz)
GAIN
(d
B)
AV = 1
AV = 100
AV = 1000
Rg = 100, Rf = 100k
Rg = 10k, Rf = 100k
AV = 10
Rg = 1k, Rf = 100k
Rg = OPEN, Rf = 0
1k
NORMALIZ
E
D
GAIN
(dB)
FREQUENCY (Hz)
100k
1M
10M
10k
1k
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
V+ = ±20V
AV = +1
VOUT = 100mVP-P
CL = 4pF
RL = 10k
RL = 100k
RL = 1k
RL = 499
1k
10k
100k
1M
10M
-8
-6
-4
-2
0
-9
1
NORMALIZE
D
GAIN
(d
B)
FREQUENCY (Hz)
V+ = ±15V
AV = +1
VOUT = 100mVP-P
CL = 4pF
RL = 1k
RL = 499
RL = 100k
RL = 10k