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OPA3681U Datasheet(PDF) 10 Page - Texas Instruments

Part # OPA3681U
Description  Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

OPA3681U Datasheet(HTML) 10 Page - Texas Instruments

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OPA3681
10
SBOS095A
TYPICAL PERFORMANCE CURVES: VS = +5V (Cont.)
G = +2, RF = 499Ω, and RL = 100Ω, unless otherwise noted (see Figure 1).
10
1
0.1
0.01
CLOSED-LOOP OUTPUT IMPEDANCE
Frequency (Hz)
10k
100M
100k
1M
10M
499
+5
1/3
OPA3681
–5
499
50
Z
O
–45
–50
–55
–60
–65
–70
–75
–80
–85
Single-Tone Load Power (dBm)
–14
–12
–10
–8
–6
–4
–20
2
TWO-TONE, 3rd-ORDER SPURIOUS LEVEL
50MHz
dBc = dB Below Carrier
Load Power at Matched 50
Ω Load
20MHz
10MHz
2nd HARMONIC DISTORTION
vs FREQUENCY
–50
–60
–70
–80
–90
10
1
0.1
20
Frequency (MHz)
V
O = 2Vp-p
R
L = 100Ω
G = +2, R
F = 499Ω
G = +5, R
F = 365Ω
G = +10, R
F = 182Ω
3rd HARMONIC DISTORTION
vs FREQUENCY
–50
–60
–70
–80
–90
10
1
0.1
20
Frequency (MHz)
V
O = 2Vp-p
R
L = 100Ω
G = +2, R
F = 499Ω
G = +5, R
F = 365Ω
G = +10, R
F = 182Ω
2nd HARMONIC DISTORTION
vs FREQUENCY
–50
–60
–70
–80
–90
10
1
0.1
20
Frequency (MHz)
V
O = 2Vp-p
G = +2
R
L = 200Ω
R
L = 500Ω
R
L = 100Ω
3rd HARMONIC DISTORTION
vs FREQUENCY
–50
–60
–70
–80
–90
10
1
0.1
20
Frequency (MHz)
V
O = 2Vp-p
G = +2
R
L = 200Ω
R
L = 500Ω
R
L = 100Ω


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