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OPA3681U Datasheet(PDF) 9 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) 9 Page - Texas Instruments

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9
OPA3681
SBOS095A
TYPICAL PERFORMANCE CURVES: VS = +5V
G = +2, RF = 499Ω, and RL = 100Ω, unless otherwise noted (see Figure 1).
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
Frequency (25MHz/div)
0
250
125
SMALL-SIGNAL FREQUENCY RESPONSE
G = +2,
R
F = 499Ω
V
O = 0.5Vp-p
G = +10,
R
F = 182Ω
G = +5,
R
F = 365Ω
G = +1,
R
F = 549Ω
8
7
6
5
4
3
2
1
0
–1
–2
Frequency (25MHz/div)
0
250
125
LARGE-SIGNAL FREQUENCY RESPONSE
G = +2
R
L = 100Ω to 2.5V
V
O = 0.5Vp-p
V
O = 1Vp-p
V
O = 2Vp-p
2.10
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
SMALL-SIGNAL PULSE RESPONSE
Time (5ns/div)
G = +2
V
O = 0.5Vp-p
4.5
4.1
3.7
3.3
2.9
2.5
2.1
1.7
1.3
0.9
0.5
LARGE-SIGNAL PULSE RESPONSE
Time (5ns/div)
G = +2
V
O = 2Vp-p
70
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 RESPONSE vs CAPACITIVE LOAD
Frequency (20MHz/div)
0
200MHz
100MHz
C
L = 22pF
C
L = 10pF
C
L = 47pF
C
L = 100pF
499
Ω
499
Ω
57.6
Ω
806
Ω
806
Ω
1k
Ω
VI
+5V
0.1
µF
VO
RS C
L
0.1
µF
0.1
µF


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