Datasheet

CurrentNoise(pA/ )ÖHz
VoltageNoise(nV/ )ÖHz
Frequency(Hz)
100 1M100k10k1k
10M
100
10
1
VoltageNoise5.5nV/ÖHz
CurrentNoise3.1pA/ÖHz
3rd-OrderSpuriousLevel(dBc)
Single-ToneLoadPower(dBm)
-8 -6 -4 -2 0 2 4 6 8
10
-30
-35
-40
-45
-50
-55
-60
-65
-70
-75
20MHz
10MHz
50MHz
LoadPoweratMatched50 Load,W
seeFigure36
R ( )W
S
CapacitiveLoad(pF)
10 100
1000
80
70
60
50
40
30
20
10
0
Gain-to-CapacitiveLoad(dB)
Frequency(20MHz/div)
0 100 120 140 160 18020 40 60 80
200
9
6
3
0
-3
-6
-9
402W
1kW
402W
R
S
C
L
V
IN
V
OUT
1/3
OPA3690
1k isoptional.W
C =22pF
L
C =47pF
L
C =100pF
L
C =10pF
L
G=+2
Time(50ns/div)
OutputVoltage(0.4V/div)
2.0
1.6
1.2
0.8
0.4
0
V (2V/div)
DIS
6
4
2
0
G=+2
V =+1V
IN
V
DIS
OutputVoltage
Frequency(Hz)
Feedthrough(5dB/div)
Forward
Reverse
V =0
DIS
100k 1M 10M 100M
-35
-40
-45
-50
-55
-60
-65
-70
-75
-80
-85
-90
-95
OPA3690
www.ti.com SBOS237G –MARCH 2002–REVISED MARCH 2010
TYPICAL CHARACTERISTICS: V
S
= ±5V (continued)
At T
A
= +25°C, G = +2, R
F
= 402Ω, and R
L
= 100Ω (see Figure 36 for ac performance only), unless otherwise noted.
INPUT VOLTAGE AND CURRENT TWO-TONE, 3RD-ORDER
NOISE DENSITY INTERMODULATION SPURIOUS
Figure 13. Figure 14.
RECOMMENDED R
S
FREQUENCY RESPONSE
vs CAPACITIVE LOAD vs CAPACITIVE LOAD
Figure 15. Figure 16.
LARGE-SIGNAL DISABLE FEEDTHROUGH
ENABLE/DISABLE RESPONSE vs FREQUENCY
Figure 17. Figure 18.
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