OPA1611
OPA1612
www.ti.com........................................................................................................................................................ SBOS450A –JULY 2009–REVISED AUGUST 2009
TYPICAL CHARACTERISTICS
At TA = +25°C, VS = ±15V, and RL = 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
Time (1s/div)
0.1
1
10
100
1k
10k
100k
Frequency (Hz)
Figure 1.
Figure 2.
VOLTAGE NOISE vs SOURCE RESISTANCE
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
30
10k
1k
Maximum output
voltage range
VS = ±15V
25
20
15
10
5
without slew-rate
induced distortion
EO
Total Output
Voltage Noise
RS
100
10
1
VS = ±5V
Resistor
Noise
VS = ±2.25V
EO2 = en2 + (in RS)2 + 4kTRS
0
10k
100k
Frequency (Hz)
1M
10M
100
1k
10k
100k
1M
Source Resistance, RS (W)
Figure 3.
Figure 4.
GAIN AND PHASE vs FREQUENCY
CLOSED-LOOP GAIN vs FREQUENCY
140
120
100
80
180
160
140
120
100
80
25
20
G = +10
15
Gain
10
G = -1
5
G = +1
60
0
40
-5
20
60
Phase
-10
-15
-20
-25
0
40
-20
-40
20
0
100
1k
10k
100k
1M
10M
100M
100k
1M
10M
100M
Frequency (Hz)
Frequency (Hz)
Figure 5.
Figure 6.
Copyright © 2009, Texas Instruments Incorporated
5
Product Folder Link(s): OPA1611 OPA1612
TI [ TEXAS INSTRUMENTS ]
