OPA2681 Datasheet, PDF (10/21 Pages) Burr-Brown (TI) – Dual Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL PERFORMANCE CURVES: V_S = +5V (CONT)
G = +2, R_F = 499Ω, R_L = 100Ω to +2.5V, unless otherwise noted (see Figure 2).
2ND HARMONIC DISTORTION vs FREQUENCY
–40
V_O = 2Vp-p
R_L = 100Ω to 2.5V
–50
G = +10, R_F = 200Ω
G = +5, R_F = 360Ω
–60
–70
G = +2, R_F = 499Ω
–80
0.1
1
Frequency (MHz)
10 20
3RD HARMONIC DISTORTION vs FREQUENCY
–40
V_O = 2Vp-p
R_L = 100Ω to 2.5V
–50
G = +10, R_F = 200Ω
–60
G = +5, R_F = 360Ω
–70
–80
0.1
G = +2, R_F = 499Ω
1
Frequency (MHz)
10 20
2ND HARMONIC DISTORTION vs FREQUENCY
–50
V_O = 2Vp-p
G = +2
–60
R_L = 100Ω
R_L = 200Ω
–70
–80
Loads to 2.5V
–90
0.1
R_L = 500Ω
1
Frequency (MHz)
10 20
3RD HARMONIC DISTORTION vs FREQUENCY
–50
V_O = 2Vp-p
G = +2
–60
R_L = 100Ω
–70
R_L = 200Ω
–80
Loads to 2.5V
–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
1/2
1
50Ω OPA2681
Z_O
402Ω
402Ω
0.1
–5
0.01
10k
100k
1M
10M
Frequency (Hz)
100M
®
OPA2681
10