OPA3681 Datasheet, PDF (10/21 Pages) Burr-Brown (TI) – Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL PERFORMANCE CURVES: V_S = +5V (Cont.)
G = +2, R_F = 499Ω, and R_L = 100Ω, unless otherwise noted (see Figure 1).
2nd HARMONIC DISTORTION
vs FREQUENCY
–50
V_O = 2Vp-p
R_L = 100Ω
G = +10, R_F = 182Ω
–60
G = +5, R_F = 365Ω
–70
–80
–90
0.1
G = +2, R_F = 499Ω
1
Frequency (MHz)
10 20
3rd HARMONIC DISTORTION
vs FREQUENCY
–50
V_O = 2Vp-p
R_L = 100Ω
–60
G = +10, R_F = 182Ω
G = +5, R_F = 365Ω
–70
G = +2, R_F = 499Ω
–80
–90
0.1
1
Frequency (MHz)
10 20
2nd HARMONIC DISTORTION
vs FREQUENCY
–50
V_O = 2Vp-p
G = +2
–60
R_L = 500Ω
R_L = 200Ω
–70
R_L = 100Ω
–80
–90
0.1
1
Frequency (MHz)
10 20
3rd HARMONIC DISTORTION
vs FREQUENCY
–50
V_O = 2Vp-p
G = +2
–60
R_L = 200Ω
–70
R_L = 100Ω
–80
–90
0.1
R_L = 500Ω
1
Frequency (MHz)
10 20
TWO-TONE, 3rd-ORDER SPURIOUS LEVEL
–45
dBc = dB Below Carrier
–50
50MHz
–55
–60
–65
20MHz
–70
–75
10MHz
–80
Load Power at Matched 50Ω Load
–85
–14 –12 –10 –8 –6 –4 –2 0
2
Single-Tone Load Power (dBm)
CLOSED-LOOP OUTPUT IMPEDANCE
10
+5
1/3
1
50Ω OPA3681
Z_O
499Ω
499Ω
0.1
–5
0.01
10k
100k
1M
10M
Frequency (Hz)
100M
®
OPA3681
10