OP191/OP291/OP491
50
40
CLOSED-LOOP GAIN – dB
160
90
CMRR
V
S
= +3V
T
A
= +25°C
CMRR – dB
V
S
= +3V
T
A
= +25°C
140
120
100
V
S
= +3V
89
30
20
10
0
–10
–20
–30
–40
–50
10
100
1k
10k 100k
FREQUENCY – Hz
1M
10M
CMRR – dB
88
80
60
40
20
0
–20
–40
100
1k
10k
100k
FREQUENCY – Hz
1M
10M
87
86
85
84
–40
25
85
TEMPERATURE –
°C
125
Figure 11. Closed-Loop Gain vs.
Frequency, V
S
= +3 V
160
140
120
100
±PSRR
V
S
= +3V
T
A
= +25°C
Figure 12. CMRR vs. Frequency,
V
S
= +3 V
113
V
S
= +3V
112
Figure 13. CMRR vs. Temperature,
V
S
= +3 V
1.6
1.4
1.2
V
S
= +3V
+SR
111
SLEW RATE – V/µs
1.0
0.8
0.6
0.4
PSRR – dB
80
60
40
20
0
–20
–40
100
1k
10k
–PSRR
+PSRR
PSRR – dB
110
109
108
107
–40
0.2
0
–40
–SR
100k
1M
10M
FREQUENCY – Hz
85
TEMPERATURE –
°C
25
125
85
25
TEMPERATURE –
°C
125
Figure 14. PSRR vs. Frequency,
V
S
= +3 V
0.35
SUPPLY CURRENT/AMPLIFIER – mA
Figure 15. PSRR vs. Temperature,
V
S
= +3 V
2.8
MAXIMUM OUTPUT SWING – Volts
Figure 16. Slew Rate vs. Tempera-
ture, V
S
= +3 V
V
S
= +3V
0.30
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
V
IN
= +2.8Vp-p
V
S
= +3V
A
V
= +1
R
L
= 100k
MKR: 36.2 nV/√Hz
0.25
100
90
0.20
0.15
10
0%
0.10
0.05
–40
25
85
125
TEMPERATURE –
°C
1.0
0.1 0.5 1.0 10 30 50 70 100 150 200 250 300
FREQUENCY – kHz
MKR:
0 Hz
1000 Hz
BW: 2.5kHz
15.0 Hz
Figure 17. Supply Current vs.
Temperature, V
S
= +3 V, +5 V,
±
5 V
Figure 18. Maximum Output Swing
vs. Frequency, V
S
= +3 V
Figure 19. Voltage Noise Density,
V
S
= +3 V to
±
5 V, A
VO
= 1000
REV. 0
–7–
AD [ ANALOG DEVICES ]
