ISL28114 Datasheet, PDF (13/21 Pages) Intersil Corporation – Single, Dual, Quad General Purpose Micropower, RRIO Operational Amplifiers

ISL28114, ISL28214, ISL28414
Characterization vs Simulation Results
10,000
1.0
V₊ = ±2.5V
A_V = 1
0.8
1000
0.6
(A) AC sims.dat (active)
0.4
100
0.2
10
1
10
100
1k
10k
100k
FREQUENCY (Hz)
FIGURE 22. CHARACTERIZED INPUT NOISE VOLTAGE
0
1.0
10
100
1.0k
10k
100k
FREQUENCY (Hz)
FIGURE 23. SIMULATED INPUT NOISE VOLTAGE
70
60 ^{AV = 1000}
R_g = 100, R_f = 100k
50
R_g = 1k, R_f = 100k
40 ^{AV = 100}
30
A_V = 10
20
V₊ = ±2.5V
C_L = 4pF
R_L = 10k
V_OUT = 50mV_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 100M
FREQUENCY (Hz)
FIGURE 24. CHARACTERIZED CLOSED LOOP GAIN vs
FREQUENCY
3
2
V_S = ±2.5V
1
V_S = ±0.9V
0
R_L = 10k
-1
C_L = 15pF
A_V = +1
-2
V_OUT = RAIL
-3
0 1 2 3 4 5 6 7 8 9 10
TIME (µs)
FIGURE 26. CHARACTERIZED LARGE SIGNAL
TRANSIENT RESPONSE vs R_L,
V_S = ±0.9V, ±2.5V
70
(A) AC sims.dat (active)
60 ^{AV = 1000}
R_g = 100, R_f = 100k
R_g = 1k, R_f = 100k
40 ^{AV = 100}
A_V = 10
20
R_g = 10k, R_f = 100k
0
-10
10
R_g = 100k, R_f = 100k
100 1.0k 10k 100k 1.0M 10M
FREQUENCY (Hz)
FIGURE 25. SIMULATED CLOSED LOOP GAIN vs
FREQUENCY
100M
3
(A) AC sims.dat (active)
2
V_OUT
V_S = ±2.5V
1
V_IN
-0
V(VIN+)/VOUT)
-1
R_L = 10k
-2
C_L = 15pF
A_V = +10
V_OUT = RAIL
-3
0
5
10
15
20
25
30
TIME (µs)
FIGURE 27. SIMULATED LARGE SIGNAL TRANSIENT
RESPONSE vs R_L, V_S = ±0.9V, ±2.5V
13
FN6800.3
December 22, 2009