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ISL28127_10 Datasheet, PDF (15/23 Pages) Intersil Corporation – Precision Single and Dual Low Noise Operational Amplifiers
◁
ISL28127, ISL28227
Characterization vs Simulation Results
100
100
VS = ±19V
AV = 1
10
10
1
0.1
1
10
100
1k
10k
100k
FREQUENCY (Hz)
FIGURE 30. CHARACTERIZED INPUT NOISE VOLTAGE
V(INOISE)
1
0.1
1
10
100
1k
10k 100k
FREQUENCY (Hz)
FIGURE 31. SIMULATED INPUT NOISE VOLTAGE
70
60 AV = 1000
Rg = 100, Rf = 100k
50
Rg = 1k, Rf = 100k
40 AV = 100
30
AV = 10
20
VS = ±15V
CL = 3.5pF
RL = INF
VOUT = 100mVP-P
10 Rg = 10k, Rf = 100k
0 AV = 1
-10
100
Rg = OPEN, Rf = 0
1k
10k 100k
1M
10M 100M
FREQUENCY (Hz)
FIGURE 32. CHARACTERIZED CLOSED LOOP GAIN vs
FREQUENCY
70
60 AV = 1000
50
40 AV = 100
Rg = 100, Rf = 100k
Rg = 1k, Rf = 100k
30
AV = 10
20
10 Rg = 10k, Rf = 100k
0 AV = 1
-10
100
Rg = OPEN, Rf = 0
1k
10k
100k
1M
FREQUENCY (Hz)
10M 100M
FIGURE 33. SIMULATED CLOSED LOOP GAIN vs
FREQUENCY
15
Rf = Rg = 100k
13
11
9
7
5
3 VS = ±15V
1 RL = 10k
CL = 3.5pF
-1 AV = +2
-3 VOUT = 100mVP-P
-5
1k
10k
Rf = Rg = 100
100k
1M
FREQUENCY (Hz)
Rf = Rg = 10k
Rf = Rg = 1k
10M
100M
FIGURE 34. CHARACTERIZED CLOSED LOOP GAIN vs
Rf/Rg
15
Rf = Rg = 100k
13
11
9
7
5
3 VS = ±15V
1 RL = 10k
CL = 3.5pF
-1 AV = +2
-3 VOUT = 100mVP-P
-5
1k
10k
Rf = Rg = 100
100k
1M
FREQUENCY (Hz)
Rf = Rg = 10k
Rf = Rg = 1k
10M
100M
FIGURE 35. SIMULATED CLOSED LOOP GAIN vs Rf/Rg
15
FN6633.3
March 18, 2010
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