Datasheet

8
7
6
5
4
3
2
1
0
Quiescent Current Adjust Resistor (
Ω
)
Quiescent Current (mA)
0.1 1 10 100 1k 10k 100k
16
14
12
10
8
6
4
2
0
Quiescent Current Adjust Resistor (
Ω
)
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Input Voltage Noise Density (nV/
√
Hz)
Input Current Noise Density (pA/
√
Hz)
E−Input Current Noise (pA/
√
Hz)
B−Input Voltage Noise (nV/
√
Hz)
B−Input Current Noise (pA/
√
Hz)
60
50
40
30
20
10
0
QuiescentCurrent(mA)
OTAE-OutputResistance( )W
0 1 32 4 5 6 7
8
100
10
1
Frequency (Hz)
100 1k 10k 100k 1M 10M
Input Voltage Noise Density (nV/
√
Hz)
Input Current Noise Density (pA/
√
Hz)
E−Input Current Noise (5.2pA/
√
Hz)
B−Input Voltage Noise (2.4nV/
√
Hz)
B−Input Current Noise (1.65pA/
√
Hz)
500
490
480
470
460
450
440
430
QuiescentCurrent(mA)
OTAB-InputResistance(k )W
0 1 32 4 5 6 7
8
120
110
100
90
80
70
60
50
40
QuiescentCurrent(mA)
OTAC-OutputResistance(k )W
0 1 32 4 5 6 7
8
OPA861
SBOS338G –AUGUST 2005–REVISED MAY 2013 www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V (continued)
At T
A
= +25°C, I
Q
= 5.4mA, and R
L
= 500Ω, unless otherwise noted.
B-INPUT RESISTANCE vs QUIESCENT CURRENT C-OUTPUT RESISTANCE vs QUIESCENT CURRENT
Figure 8. Figure 9.
E-OUTPUT RESISTANCE vs QUIESCENT CURRENT INPUT VOLTAGE AND CURRENT NOISE DENSITY
Figure 10. Figure 11.
1MHz OTA VOLTAGE AND CURRENT NOISE DENSITY
QUIESCENT CURRENT vs R
ADJ
vs QUIESCENT CURRENT ADJUST RESISTOR
Figure 12. Figure 13.
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