ISL28233_1012 Datasheet, PDF (18/25 Pages) Intersil Corporation – Dual and Quad Micropower Chopper Stabilized, RRIO Operational Amplifiers

ISL28233, ISL28433
Characterization vs Simulation Results
1000
V+ = 5V
A_V = 1
1000
V₊ = 5V
A_V = 1
100
100
10
0.001 0.01 0.1 1
10 100 1k 10k 100k
FREQUENCY (Hz)
FIGURE 44. CHARACTERIZED INPUT NOISE VOLTAGE DENSITY
vs FREQUENCY
70
60 ^{AV = 1000}
R_g = 100, R_f = 100k
50
40 ^{AV = 100}
30
20 ^{AV = 10}
R_g = 1k, R_f = 100k
V₊ = 5V
C_L = 3.7pF
R_L = 100k
V_OUT = 10mV_P-P
10
R_g = 10k, R_f = 100k
0 ^{AV = 1}
-10
10
R_g = OPEN, R_f = 0
100
1k
10k 100k
1M
10M
FREQUENCY (Hz)
FIGURE 46. CHARACTERIZED FREQUENCY RESPONSE vs
CLOSED LOOP GAIN
8
6
C_LL = 824pF
C_L = 474pF
4
C_L = 224pF
2
0
-2
-4 _{V+ = 5V}
-6 ^RL ^{= 100k}
-8
A_V = +1
V_OUT = 10mVP-P
C_L = 104pF
C_L = 51pF
C_L = 3.7pF
-10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 48. CHARACTERIZED GAIN vs FREQUENCY vs C_L
10
0.1
1
10
100
1k
FREQUENCY (Hz)
10k
100k
FIGURE 45. SIMULATED INPUT NOISE VOLTAGE DENSITY vs
FREQUENCY
70
A_V = 1000
60
Rg = 100, Rf = 100k
50
A_V = 100
40
Rg = 1k, Rf = 100k
30
A_V = 10
20
Rg = 10k, Rf = 100k
10
A_V = 1
0
-10
10
100
Rg = 10M Rf = 1
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 47. SIMULATED FREQUENCY RESPONSE vs CLOSED
LOOP GAIN
8
C_L = 824pF
6
4
C_L = 474pF
2
C_LL = 224pF
0
-2
-4
-6
-8
C_L = 3.7pF
-10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 49. SIMULATED GAIN vs FREQUENCY vs C_L
18
FN7692.2
December 15, 2010