OPA1612-Q1 Datasheet, PDF (7/31 Pages) Texas Instruments – SoundPlus High-Performance, Bipolar-Input Audio Operational Amplifier

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6.6 Typical Characteristics
At T_A = 25°, V_S = ±15 V, and R_L = 2 kΩ, unless otherwise noted.
100
Current Noise Density
Voltage Noise Density
10
OPA1612-Q1
SLOS931A – NOVEMBER 2015 – REVISED NOVEMBER 2015
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
Total Output Voltage Noise
Resistor Noise
1k
100
10
1
100
1k
10k
100k
1M
Source Resistance, R_S (Ω)
E_O2 = e_n2 + (i_n × R_S)² + 4kRT_S
See Figure 29
Figure 3. Voltage Noise vs Source Resistance
140
180
Gain
120
Phase ¹⁶⁰
100
140
80
120
60
100
40
80
20
60
0
40
-20
20
-40
0
100
1k
10k 100k
1M
10M 100M
Frequency (Hz)
Figure 5. Gain and Phase vs Frequency
Time (1 s/div)
30
25
20
15
10
5
0
10k
Figure 2. 0.1-Hz to 10-Hz Noise
V_S = ±15 V
V_S = ±5 V
V_S = ±2.25 V
Maximum output
voltage range
without slew-rate
induced distortion
100k
1M
10M
Frequency (Hz)
Figure 4. Maximum Output Voltage vs Frequency
25
G = 10
20
G = –1
15
G=1
10
5
0
-5
-10
-15
-20
-25
100k
1M
10M
Frequency (Hz)
100M
Figure 6. Closed-Loop Gain vs Frequency
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