OPA1611 Datasheet, PDF (5/21 Pages) Texas Instruments – High-Performance Bipolar-Input AUDIO OPERATIONAL AMPLIFIERS

OPA1611
OPA1612
www.ti.com........................................................................................................................................................ SBOS450A – JULY 2009 – REVISED AUGUST 2009
TYPICAL CHARACTERISTICS
At T_A = +25°C, V_S = ±15V, and R_L = 2kΩ, unless otherwise noted.
INPUT VOLTAGE NOISE DENSITY AND
INPUT CURRENT NOISE DENSITY vs FREQUENCY
0.1Hz TO 10Hz NOISE
100
Voltage Noise Density
10
Current Noise Density
1
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
Figure 1.
VOLTAGE NOISE vs SOURCE RESISTANCE
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.
140
120
100
80
60
40
20
0
-20
-40
100
GAIN AND PHASE vs FREQUENCY
Gain
Phase
1k
10k 100k
1M
10M
Frequency (Hz)
Figure 5.
180
160
140
120
100
80
60
40
20
0
100M
Time (1s/div)
Figure 2.
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
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.
CLOSED-LOOP GAIN vs FREQUENCY
25
G = +10
20
15
10
G = -1
5
G = +1
0
-5
-10
-15
-20
-25
100k
1M
10M
Frequency (Hz)
100M
Figure 6.
Copyright © 2009, Texas Instruments Incorporated
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