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OPA1622 Datasheet, PDF (8/36 Pages) Texas Instruments – OPA1622 SoundPlus™ High-Fidelity, Bipolar-Input, Audio Operational Amplifier
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OPA1622
SBOS727A – NOVEMBER 2015 – REVISED NOVEMBER 2015
Typical Characteristics (continued)
at TA = 25°C, VS = ±18 V, and RL = 2 kΩ (unless otherwise noted)
1000
100
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Source Resistor Noise Contribution
Time (2 s/div)
C017
Figure 7. 0.1-Hz to 10-Hz Noise
18
16
VS = ±15V
14
12
10
8
6
VS = ±5V
4
2
VS = ±2V
0
10k
100k
1M
Frequency (Hz)
10M
C303
Figure 9. Maximum Output Voltage vs Frequency
5.0
4.0
VS = ±2 V
3.0
2.0
1.0
0.0
±1.0
VS = ±18 V
±2.0
±3.0
±4.0
±5.0
±75 ±50 ±25
0 25 50 75
Temperature (ƒC)
600-Ω load
100 125 150
C001
Figure 11. Open-Loop Gain vs Temperature
10
Total Noise
1
0.1
10
Voltage Noise Contribution
Current Noise Contribution
100
1k
10k
100k
1M
Source Resistance ( )
C302
Figure 8. Voltage Noise vs Source Resistance
140
225
120
100
180
80
60
135
40
20
90
0
±20
1
45
10 100 1k 10k 100k 1M 10M 100M
Frequency (Hz)
C005
Figure 10. Open-Loop Gain and Phase vs Frequency
5.0
4.0
3.0
VS = ±2 V
2.0
1.0
0.0
±1.0
VS = ±18 V
±2.0
±3.0
±4.0
±5.0
±75 ±50 ±25
0 25 50 75
Temperature (ƒC)
2-kΩ load
100 125 150
C001
Figure 12. Open-Loop Gain vs Temperature
8
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