Datasheet
100nV/div
Time(1s/div)
VoltageNoiseDensity(nV/ )ÖHz
0.1
Frequency(Hz)
100k101 100 1k 10k
100
10
1
160
140
120
100
80
60
40
20
0
Common-ModeRejectionRatio(dB)
Power-SupplyRejectionRatio(dB)
1 10 100
1k 10k 100k 1M 10M 100M
Frequency(Hz)
CMRR
+PSRR
-PSRR
35
30
25
20
15
10
5
0
OutputVoltage(V )
PP
10k 100k 1M 10M
Frequency(Hz)
V = 2.25V
S
±
V = 5V
S
±
V = 15V
S
±
Maximumoutput
voltagerange
withoutslew-rate
induceddistortion
140
120
100
80
60
40
20
0
20-
180
135
90
45
0
Gain(dB)
Phase(degrees)
50 100
1k 10k 100k 1M 10M 100M
Frequency(Hz)
Phase
Gain
30
20
10
0
10
20
-
-
Gain(dB)
100k 1M 10M 100M
Frequency(Hz)
G=+10
G=+1
G= 1-
OPA1641
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OPA1644
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SBOS484B –DECEMBER 2009–REVISED AUGUST 2010
TYPICAL CHARACTERISTICS: V
S
= ±18V
At T
A
= +25°C, R
L
= 2kΩ connected to midsupply, V
CM
= V
OUT
= midsupply, unless otherwise noted.
INPUT VOLTAGE NOISE DENSITY vs FREQUENCY 0.1Hz to 10Hz NOISE
Figure 1. Figure 2.
MAXIMUM OUTPUT VOLTAGE vs FREQUENCY CMRR AND PSRR vs FREQUENCY (Referred to Input)
Figure 3. Figure 4.
GAIN AND PHASE vs FREQUENCY CLOSED-LOOP GAIN vs FREQUENCY
Figure 5. Figure 6.
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