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ISL28130_11 Datasheet, PDF (8/19 Pages) Intersil Corporation – Single, Dual, and Quad Micropower, Low Drift, RRIO Operational Amplifiers
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ISL28130, ISL28230, ISL28430
Typical Performance Curves V+ = 5V, V- = 0V, VCM = 2.5V, RL = Open, T = +25°C, unless otherwise specified.
1
0
-1
-2
RL = 1k
-3
RL = 10k
RL = 100k
RL = OPEN
1
0
-1
RL = 1k
-2
RL = 10k
-3
RL = 100k
RL = OPEN
-4
RL = 49.9k
-5
-6 VS = ±0.9V
-7 CL = 3.7pF
AV = +1
-8 VOUT = 10mVP-P
-9
100
1k
10k
100k
1M
FREQUENCY (Hz)
10M
-4
RL = 49.9k
-5
-6 VS = ±2.5V
CL = 3.7pF
-7 AV = +1
-8 VOUT = 10mVP-P
-9
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 9. GAIN vs FREQUENCY vs RL, VS = ±0.9V
FIGURE 10. GAIN vs FREQUENCY vs RL, VS = ±2.5V
10
9
8
7
RF = RG = 1k
6
5
RF = RG = 10k
4
3 VS = ±2.5V
2
RL = 100k
CL = 3.7pF
1 AV = +2
VOUT = 10mVP-P
0
100
1k
10k
100k
FREQUENCY (Hz)
RF = RG = 100k
1M
10M
FIGURE 11. GAIN vs FREQUENCY vs FEEDBACK RESISTOR VALUES
Rf/Rg
70
60 AV = 1000
RG = 100, RF = 100k
50
40 AV = 100
RG = 1k, RF = 100k
30
20 AV = 10
10
RG = 10k, RF = 100k
V+ = 5V
CL = 3.7pF
RL = 100k
VOUT = 10mVP-P
0 AV = 1
-10
10
RG = OPEN, RF = 0
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 13. FREQUENCY RESPONSE vs CLOSED LOOP GAIN
1
0
-1
-2
VOUT = 1V
-3
-4
VOUT = 500mV
-5
-6
VOUT = 250mV
-7
VS = ±2.5V
RL = OPEN
VOUT = 100mV
-8 CL = 3.7pF
AV = 1
VOUT = 10mV
-9
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 12. GAIN vs FREQUENCY vs VOUT
1
0
-1
-2
-3
VS = ±0.9V
-4
VS= ±1.5V
-5
VS = ±2.75V
-6
RL = 100k
-7 CL = 3.7pF
-8 AV = +1
VOUT = 10mVP-P
-9
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
FIGURE 14. GAIN vs FREQUENCY vs SUPPLY VOLTAGE
8
FN7623.3
July 15, 2011
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