ISL28134_1107 Datasheet, PDF (18/24 Pages) Intersil Corporation – 5V Ultra Low Noise, Zero Drift Rail-to-Rail Precision Op Amp

ISL28134
Characterization vs Simulation Results
100
400
100
10
10
V_s = ±2.5V
A_V = 1
1
0.001 0.01 0.1
1
10 100 1000 10k 100k
FREQUENCY (Hz)
FIGURE 48. CHARACTERIZED INPUT NOISE VOLTAGE
140
GAIN
PHASE
120
100
80
60
40
20 _{Vs = ±2.5V}
0 ^{RL = 10MΩ}
SIMULATION
-20
0.1 1
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
FIGURE 50. CHARACTERIZED OPEN-LOOP GAIN, PHASE vs
FREQUENCY
90
80 ^{AV = 10,000}
Rg = 10, Rf = 100k
70
A_V = 1000
60
Rg = 100, Rf = 100k
50
A_V = 100
40
30 _{AV = 10}
20
10
A_V = 1
0
Rg = 1k, Rf = 100k
Rg = 10k, Rf = 100k
V_s = ± 2.5V
C_L = 3.7pF
R_L = 100k
V_OUT = 10mV_P-P
-10
Rg = OPEN, Rf = 0
-20
-30
-40
10
100
1k
10k 100k 1M 10M 100M
FREQUENCY (Hz)
FIGURE 52. CHARACTERIZED CLOSED-LOOP GAIN vs FREQUENCY
V_s = ±2.5V
A_V = 1
1.0
1.0m 10m 100m 1.0 10 100 1.0k 10k
FREQUENCY (Hz)
FIGURE 49. SIMULATED INPUT NOISE VOLTAGE
100k
140
120
GAIN
100
PHASE
80
60
40
20
Vos = 0
0
-20
0.1 1
10 100 1k 10k 100k 1M 10M 100M
FREQUENCY (Hz)
FIGURE 51. SIMULATED OPEN-LOOP GAIN, PHASE vs FREQUENCY
90 _{AV = 10,000}
80
Rg = 10, Rf = 100k
70 _{AV = 1000}
60
Rg = 100, Rf = 100k
50 _{AV = 100}
40
30 A_V = 10 ^{Rg = 1k, Rf = 100k}
20
10 _{AV = 1}
Rg = 10k, Rf = 100k
0
V_s = ± 2.5V
C_L = 3.7pF
R_L = 100k
V_OUT = 10mV_P-P
-10
Rg = OPEN, Rf = 0
-20
-30
-40
10
100
1k
10k 100k 1M 10M 100M
FREQUENCY (Hz)
FIGURE 53. SIMULATED CLOSED-LOOP GAIN vs FREQUENCY
18
FN6957.2
July 25, 2011