OP181 Datasheet, PDF (7/16 Pages) Analog Devices – Ultralow Power, Rail-to-Rail Output Operational Amplifiers

OP181/OP281/OP481
70
60
50
40
30
20
10
0
–10
–20
–30
100
V_S = +5V
T_A = +25؇C
R_L = 100kΩ
0
45
90
135
180
225
270
1k
10k
100k
1M
FREQUENCY – Hz
70
60
50
40
30
20
10
0
–10
–20
–30
100
V_S = +3V
T_A = +25؇C
R_L = 100kΩ
0
45
90
135
180
225
270
1k
10k
100k
1M
FREQUENCY – Hz
70
60
50
40
30
20
10
0
–10
–20
–30
100
V_S = +2.7V
T_A = +25؇C
R_L = 100kΩ
0
45
90
135
180
225
270
1k
10k
100k
1M
FREQUENCY – Hz
Figure 10. Open-Loop Gain and Phase Figure 11. Open-Loop Gain and Phase Figure 12. Open-Loop Gain and Phase
vs. Frequency
vs. Frequency
vs. Frequency
70
60
50
40
30
20
10
0
–10
–20
–30
100
V_S = ±5V
T_A = +25؇C
R_L = 100kΩ TO GROUND
0
45
90
135
180
225
270
1k
10k
100k
1M
FREQUENCY – Hz
60
50
40
30
20
10
0
–10
–20
–30
–40
10
V_S = +5V
T_A = +25؇C
R_L = INFINITE
100
1k
10k 100k 1M
FREQUENCY – Hz
V_S = +5V
T_A = +25؇C
MARKER @ 67nV/√Hz
0
2k
4k
6k
8k
10k
FREQUENCY – Hz
Figure 13. Open-Loop Gain and Phase
vs. Frequency
90
V_S = ±5V
80
V_S = +5V
70
T_A = +25؇C
60
V_S = +3V
50
40
30
20
10
0
–10
1k
10k
100k
1M
10M
FREQUENCY – Hz
Figure 16. CMRR vs. Frequency
Figure 14. Closed-Loop Gain vs.
Frequency
160
140
120
100
80
60
40
20
0
–20
–40
10
V_S = ±5V, +5V, +3V, +2.7V
T_A = +25؇C
R_L = INFINITE
100
1k
10k 100k
1M
FREQUENCY – Hz
Figure 17. PSRR vs. Frequency
Figure 15. Voltage Noise Density vs.
Frequency
50
45
V_S = +5V
V_IN = ±50mV
40 ^{RL = 100kΩ}
T_A = +25؇C
35
–OS
+OS
30
25
20
15
10
5
0
10
100
1000
CAPACITANCE – pF
Figure 18. Small Signal Overshoot vs.
Load Capacitance
REV. 0
–7–