
ISL28117, ISL28217, ISL28417
24
November 30, 2012
FN6632.10
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)
1
10
100
1
10
100
1k
10k
100k
IN
P
U
T
N
O
IS
E
VO
LT
A
G
E
(
n
V/
√Hz
)
VS = ±18.2V
AV = 1
1.0
10
100
1.0k
10k
100k
1.0
10
100
FREQUENCY (Hz)
INPUT
NOI
SE
VO
LT
A
G
E
(nV/
√Hz)
FREQUENCY (Hz)
GAIN
(d
B)
100k
1M
10M
10
10k
1k
-10
0
10
20
30
40
50
60
70
100
AV = 1
AV = 100
AV = 1000
VS = ±20V
VOUT = 50mVP-P
CL = 4pF
RL = 10k
Rg = 10k, Rf = 100k
AV = 10
Rg = 1k, Rf = 100k
Rg = OPEN, Rf = 0
Rg = 100, Rf = 100k
10
100
1.0k
10k
100k
1.0M
10M
0
20
40
60
-10
70
FREQUENCY (Hz)
GAI
N
(
d
B)
AV = 1
AV = 100
AV = 1000
Rg = 10k, Rf = 100k
AV = 10
Rg = 100, Rf = 100k
VS = ±15V
VOUT = 50mVP-P
CL = 4pF
RL = 10k
Rg = OPEN, Rf = 0
Rg = 1k, Rf = 100k
FREQUENCY (Hz)
100k
1M
10M
10
10k
1k
100
GAIN
(d
B)
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
VS = ±20V
AV = +1
VOUT = 50mVP-P
CL = 4pF
RL = 499
RL = 100
RL = 4.99k
RL = 10k
RL = 1k
10
100
1.0k
10k
100k
1.0M
10M
-8
-6
-4
-2
0
1
FREQUENCY (Hz)
GAI
N
(
d
B)
VS = ±15V
AV = +1
VOUT = 50mVP-P
CL = 4pF
RL = 499
RL = 10k
RL = 1k
RL =100
RL = 4.99k