Datasheet

100
10
1
0.1
0.01
Frequency(Hz)
1k 10k 100k 1M 10M 100M
OutputImpedance( )W
100
10
1
Frequency(Hz)
10 100 1k 10k 100k 1M 10M
VoltageNoise(nV/ )ÖHz
CurrentNoise(pA/
)ÖHz
VoltageNoise
(9.2nV/ )
ÖHz
CurrentNoise
(3.5pA/ )ÖHz
130
120
110
100
90
80
70
60
50
40
30
20
10
CapacitiveLoad(pF)
R ( )
W
S
1 10 100 1k
0.1dBPeakingTargeted
8
7
6
5
4
3
2
1
0
-1
-2
-3
Frequency(MHz)
NormalizedGaintoCapacitiveLoad(dB)
1 10 100 300
C =1000pF
L
C =100pF
L
C =10pF
L
750W
R
S
1/4
OPA4830
V
I
V
O
50W
1kW
(1)
C
L
750W
NOTE:(1)1k isoptional.W
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-0.5
-1.0
AmbientTemperature(10 C/div)°
-50 0 50 110
VoltageRange(V)
MostPositiveOutputVoltage
MostPositiveInputVoltage
LeastPositiveOutputVoltage
LeastPositiveInputVoltage
R =150W
L
80
70
60
50
40
30
20
10
0
-10
-20
Frequency(Hz)
Open-LoopGain(dB)
Open-LoopPhase(dB)
100 1k 10k 100k 1M 10M 100M 1G
20log(A )
OL
Ð (A )
OL
0
20
40
60
80
100
120
140
160
180
200
-
-
-
-
-
-
-
-
-
-
OPA4830
www.ti.com .................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008
TYPICAL CHARACTERISTICS: V
S
= +5V (continued)
At T
A
= +25 ° C, G = +2V/V, R
F
= 750 Ω to V
S
/2, and input V
CM
= 2.5V, unless otherwise noted (see Figure 72 ).
INPUT VOLTAGE AND CURRENT NOISE DENSITY CLOSED-LOOP OUTPUT IMPEDANCE vs FREQUENCY
Figure 36. Figure 37.
RECOMMENDED R
S
vs CAPACITIVE LOAD FREQUENCY RESPONSE vs CAPACITIVE LOAD
Figure 38. Figure 39.
OPEN-LOOP GAIN AND PHASE VOLTAGE RANGES vs TEMPERATURE
Figure 40. Figure 41.
Copyright © 2006 – 2008, Texas Instruments Incorporated Submit Documentation Feedback 15
Product Folder Link(s): OPA4830