Datasheet

100
10
0
CapacitiveLoad(pF)
R ( )W
S
1 10 1k100
0.1dBFlatnessTargeted
9
6
-12
Frequency(Hz)
NormalizedGaintoCapacitiveLoad(dB)
1M 10M 1G100M
3
0
-9
-6
-3
R
F
+V
IN
-V
IN
1.33kW
1kW
(1)
20W
V
IN
V
OUT
R
S
VCA820
NOTE:(1)1k isoptional.W
C =100pF
L
C =47pF
L
C =10pF
L
C =22pF
L
V =0.5V
O PP
1000
100
10
Frequency(Hz)
OutputVoltageNoiseDensity(nV/ )ÖHz
100 1k 10k 10M100k 1M
V =+1V
G
V =+2V
G
V =0V
G
10
1
Frequency(Hz)
InputVoltageNoiseDensity(pA/ )ÖHz
100 1k 10k 10M100k 1M
VCA820
SBOS395C –OCTOBER 2007–REVISED OCTOBER 2009............................................................................................................................................ www.ti.com
TYPICAL CHARACTERISTICS: V
S
= ±5V, A
VMAX
= 6dB (continued)
At T
A
= +25°C, R
L
= 100Ω, R
F
= 1.33kΩ, R
G
= 1.33kΩ, V
G
= +2V, V
IN
= single-ended input on +V
IN
with –V
IN
at ground, and
SO-14 package, unless otherwise noted.
RECOMMENDED R
S
vs CAPACITIVE LOAD FREQUENCY RESPONSE vs CAPACITIVE LOAD
Figure 31. Figure 32.
OUTPUT VOLTAGE NOISE DENSITY INPUT CURRENT NOISE DENSITY
Figure 33. Figure 34.
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