TYPICAL PERFORMANCE CURVES: V
S
=
±
5V
G = +2, R
F
= 402Ω, R
L
= 100Ω, unless otherwise noted (see Figure 1).
(CONT)
2ND HARMONIC DISTORTION vs FREQUENCY
–40
2nd Harmonic Distortion (dBc)
3rd Harmonic Distortion (dBc)
3RD HARMONIC DISTORTION vs FREQUENCY
–40
V
O
= 2Vp-p
R
L
= 100Ω
–50
G = +10, R
F
= 180Ω
–50
V
O
= 2Vp-p
R
L
= 100Ω
G = +10, R
F
= 180Ω
–60
G = +5, R
F
= 261Ω
–60
G = +5, R
F
= 261Ω
–70
–70
G = +2, R
F
= 402Ω
–80
–80
G = +2,
R
F
= 402Ω
0.1
1
Frequency (MHz)
10
20
–90
0.1
1
Frequency (MHz)
10
20
–90
INPUT VOLTAGE AND CURRENT NOISE DENSITY
100
3rd-Order Spurious Level (dBc)
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
–8
–6
TWO-TONE, 3RD-ORDER
INTERMODULATION SPURIOUS
dBc = dB below carriers
50MHz
Current Noise (pA/√Hz)
Voltage Noise (nV/√Hz)
Inverting Input Current Noise
15.1pA/√Hz
10
Non-Inverting Input Current Noise
12.2pA/√Hz
20MHz
Voltage Noise
1
100
1k
10k
2.2nV/√Hz
100k
1M
10M
10MHz
Load Power at Matched 50Ω Load
–4
–2
0
2
4
6
8
10
Frequency (Hz)
Single-Tone Load Power (dBm)
RECOMMENDED R
S
vs CAPACITIVE LOAD
60
50
40
15
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Gain to Capacitive Load (3dB/div)
12
9
6
3
0
–3
–6
–9
–12
–15
0
402Ω
402Ω
V
IN
C
L
= 10pF
C
L
= 22pF
C
L
= 47pF
R
S
R
S
(Ω)
30
20
10
0
1
10
Capacitive Load (pF)
100
V
O
C
L
1kΩ
1kΩ is optional.
C
L
= 100pF
300MHz
150MHz
Frequency (30MHz/div)
®
7
OPA2681
BURR-BROWN [ BURR-BROWN CORPORATION ]
