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OPA3681E Datasheet(PDF) 7 Page - Texas Instruments

Part # OPA3681E
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

OPA3681E Datasheet(HTML) 7 Page - Texas Instruments

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OPA3681
SBOS095A
TYPICAL PERFORMANCE CURVES: VS = ±5V (Cont.)
G = +2, RF = 499Ω, and RL = 100Ω, unless otherwise noted (see Figure 1).
100
10
1
INPUT VOLTAGE AND CURRENT NOISE DENSITY
Frequency (Hz)
100
1k
10k
100k
1M
10M
Non-Inverting Input Current Noise
Inverting Input Current Noise
12.2pA/
√Hz
15.1pA/
√Hz
Voltage Noise
2.2nV/
√Hz
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
TWO-TONE, 3RD-ORDER
INTERMODULATION SPURIOUS
Single-Tone Load Power (dBm)
–8
–6
–4
–20
2
4
6
8
10
dBc = dB below carriers
50MHz
20MHz
10MHz
Load Power at Matched 50
Ω Load
60
50
40
30
20
10
0
RECOMMENDED R
S vs CAPACITIVE LOAD
Capacitive Load (pF)
1
10
100
15
12
9
6
3
0
–3
–6
–9
–12
–15
Frequency (30MHz/div)
0
300MHz
150MHz
FREQUENCY RESPONSE vs CAPACITIVE LOAD
RS
VIN
VO
CL
1k
Ω
499
Ω
499
Ω
1k
Ω is optional.
C
L = 22pF
C
L = 10pF
C
L = 47pF
C
L = 100pF
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
–40
–50
–60
–70
–80
–90
Frequency (MHz)
0.1
1
10
20
V
O = 2Vp-p
R
L = 100Ω
G = +2, R
F = 402Ω
G = +10, R
F = 180Ω
G = +5, R
F = 261Ω
2nd HARMONIC DISTORTION
vs FREQUENCY


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