OPA1611_15 Datasheet, PDF (7/31 Pages) Texas Instruments – SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifiers

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6.5 Typical Characteristics
At T_A = +25°C, V_S = ±15 V, and R_L = 2 kΩ, unless otherwise noted.
100
OPA1611, OPA1612
SBOS450C – JULY 2009 – REVISED AUGUST 2014
Voltage Noise Density
10
Current Noise Density
1
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
Figure 1. Input Voltage Noise Density and Input Current
Noise Density vs Frequency
10k
1k
R_S
E_O
Total Output
Voltage Noise
100
10
1
100
Resistor
Noise
E_O2 = e_n2 + (i_n R_S)² + 4kTR_S
1k
10k
100k
1M
Source Resistance, R_S (W)
Figure 3. Voltage Noise vs Source Resistance
140
180
120
160
100
Gain
140
80
120
60
100
40
80
20
Phase
60
0
40
-20
20
-40
0
100
1k
10k
100k
1M
10M 100M
Frequency (Hz)
Figure 5. Gain and Phase vs Frequency
Time (1s/div)
Figure 2. 0.1-Hz to 10-Hz Noise
30
V_S = ±15V
25
20
Maximum output
voltage range
without slew-rate
induced distortion
15
10
V_S = ±5V
5
V_S = ±2.25V
0
10k
100k
1M
10M
Frequency (Hz)
Figure 4. Maximum Output Voltage vs Frequency
25
20
15
10
5
0
-5
-10
-15
-20
-25
100k
G = +10
G = -1
G = +1
1M
10M
Frequency (Hz)
100M
Figure 6. Closed-Loop Gain vs Frequency
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