Datasheet

−
50
−
55
−
60
−
65
−
70
−
75
−
80
−
85
−
90
Resistance (
Ω
)
Harmonic Distortion (dBc)
100 1k
G = +2V/V
V
O
= 1V
PP
f = 5MHz
See Figure 71
3rd−Harmonic
2nd−Harmonic
−
30
−
40
−
50
−
60
−
70
−
80
−
90
Output Voltage Swing (V
PP
)
Harmonic Distortion (dBc)
0.1 1 10
2nd−Harmonic
3rd−Harmonic
G = +2V/V
R
L
= 500
Ω
f = 5MHz
See Figure 71
Input Limited
−
55
−
60
−
65
−
70
−
75
−
80
−
85
−
90
−
95
−
100
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
G = +2V/V
V
O
= 1V
PP
See Figure 71
−
40
−
45
−
50
−
55
−
60
−
65
−
70
−
75
−
80
−
85
−
90
−
95
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
1/2
O P A2 830
P
I
P
O
50Ω
500
Ω
750Ω
190
170
150
130
110
90
70
50
30
10
Capacitive Load (pF)
R
S
(
Ω
)
1 10 100 1k
< 0.5dB Peaking Targeted
8
7
6
5
4
3
2
1
0
−
1
−
2
−
3
Frequency (MHz)
Normalized Gain to Capacitive Load (dB)
1 10 100 200
C
L
= 1000pF
C
L
= 100pF
C
L
= 10pF
750
Ω
R
S
V
I
V
O
50Ω
1kΩ
(1)
C
L
750Ω
NOTE: (1) 1kΩ is optional.
OPA2830
OPA2830
www.ti.com .................................................................................................................................................. SBOS309D – AUGUST 2004 – REVISED AUGUST 2008
TYPICAL CHARACTERISTICS: V
S
= +3V (continued)
At T
A
= +25 ° C, G = +2V/V, and R
L
= 150 Ω to V
S
/3, unless otherwise noted (see Figure 71 ).
HARMONIC DISTORTION vs LOAD RESISTANCE HARMONIC DISTORTION vs OUTPUT VOLTAGE
Figure 57. Figure 58.
HARMONIC DISTORTION vs FREQUENCY TWO-TONE, 3RD-ORDER INTERMODULATION SPURIOUS
Figure 59. Figure 60.
RECOMMENDED R
S
vs CAPACITIVE LOAD FREQUENCY RESPONSE vs CAPACITIVE LOAD
Figure 61. Figure 62.
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