Datasheet

20nV/div
Time(1s/div)
VoltageNoiseDensity(nV/ )ÖHz
CurrentNoiseDensity(pA/ )ÖHz
0.1
Frequency(Hz)
100k101 100 1k 10k
100
10
1
CurrentNoiseDensity
VoltageNoiseDensity
30
25
20
15
10
5
0
Output Voltage (V )
PP
10k 100k 1M 10M
Frequency (Hz)
V = 2.25V
S
±
V = 5V
S
±
V = 15V
S
±
Maximum output
voltage range
without slew-rate
induced distortion
10k
1k
100
10
1
Voltage Noise Spectral Density, E
O
(nV/ )Hz?
100
1k 10k 100k 1M
Source Resistance, R ( )W
S
Resistor
Noise
E = e
O n S
+ (i R ) + 4kTR
n S
2 2 2
R
S
E
O
Total Output
Voltage Noise
140
120
100
80
60
40
20
0
20
40
-
-
180
160
140
120
100
80
60
40
20
0
Gain(dB)
Phase(degrees)
100
1k 10k 100k 1M 10M 100M
Frequency(Hz)
Phase
Gain
25
20
15
10
5
0
5
10
15
20
25-
-
-
-
-
Gain(dB)
100k 1M 10M 100M
Frequency(Hz)
G=+10
G=+1
G= 1-
OPA1611
OPA1612
www.ti.com SBOS450B –JULY 2009–REVISED JULY 2011
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
Figure 1. Figure 2.
VOLTAGE NOISE vs SOURCE RESISTANCE MAXIMUM OUTPUT VOLTAGE vs FREQUENCY
Figure 3. Figure 4.
GAIN AND PHASE vs FREQUENCY CLOSED-LOOP GAIN vs FREQUENCY
Figure 5. Figure 6.
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