Datasheet

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SBOS263F − AUGUST 2004 − REVISED AUGUST 2008
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16
TYPICAL CHARACTERISTICS: V
S
= +3V (continued)
At T
A
= 25°C, G = +2, and R
L
= 150Ω to V
S
/3, unless otherwise noted (see Figure 2).
−
50
−
55
−
60
−
65
−
70
−
75
−
80
−
85
−
90
HARMONIC DISTORTION vs LOAD RESISTANCE
Resistance (
Ω
)
Harmonic Distortion (dBc)
100 1000
f=5MHz
V
O
=1V
PP
G=+2V/V
SeeFigure2
3rd−Harmonic
2nd−Harmonic
−
55
−
60
−
65
−
70
−
75
−
80
−
85
−
90
−
95
−
100
HARMONIC DISTORTION vs FREQUENCY
Frequency (MHz)
Harmonic Distortion (dBc)
0.1 1 10
2nd−Harmonic
R
L
= 150
Ω
2nd−Harmonic
R
L
= 500
Ω
3rd−Harmonic
R
L
= 150
Ω
3rd−Harmonic
R
L
= 500
Ω
V
O
=1V
PP
G=+2V/V
SeeFigure2
190
170
150
130
110
90
70
50
30
10
RECOMMENDED R
S
vs CAPACITIVE LOAD
Capacitive Load (pF)
R
S
(
Ω
)
1 10 100 1k
0dB Peaking Targeted
−
40
−
50
−
60
−
70
−
80
−
90
−
100
HARMONIC DISTORTION vs OUTPUT VOLTAGE
Output Voltage Swing (V
PP
)
Harmonic Distortion (dBc)
0.1 1 10
2nd−Harmonic
3rd−Harmonic
f=5MHz
R
L
=500
Ω
G=+2V/V
SeeFigure2
Input Limited
−
40
−
45
−
50
−
55
−
60
−
65
−
70
−
75
−
80
−
85
−
90
−
95
TWO−TONE, 3RD−ORDER INTERMODULATION SPURIOUS
Single−Tone Load Power (dBm)
3rd−Order Spurious Level (dBc)
10MHz
5MHz
20MHz
−
28
−
26
−
24
−
22
−
20
−
18
−
16
−
14
−
12
−
10
−
8
750
Ω
OPA830
P
I
P
O
50
Ω
500
Ω
750
Ω
8
7
6
5
4
3
2
1
0
−
1
−
2
−
3
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Frequency (MHz)
Normalized Gain to Capacitive Load (dB)
1 10 100 20
0
C
L
= 1000pF
C
L
= 100pF
C
L
= 10pF
750Ω
R
S
V
I
V
O
50
Ω
1kΩ
(1)
C
L
750Ω
NOTE: (1) 1k
Ω
is optional.
OPA830