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OPA2691 Datasheet, PDF (5/30 Pages) Texas Instruments – Dual Wideband, Current-Feedback OPERATIONAL AMPLIFIER | |||
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TYPICAL CHARACTERISTICS: VS = ±5V
G = +2, RF = 402â¦, RL = 100â¦, unless otherwise noted (see Figure 1 for AC performance only).
SMALL-SIGNAL FREQUENCY RESPONSE
1
G = +1, RF = 453â¦
0
G = +2,
â1
RF = 402â¦
â2
â3
â4
G = +5, RF = 261â¦
â5
â6
G = +10, RF = 180â¦
â7
â8
0
VO = 0.5Vp-p
125MHz
Frequency (25MHz/div)
250MHz
LARGE-SIGNAL FREQUENCY RESPONSE
7.0
G = +2, RL = 100â¦
6.5
2Vp-p 1Vp-p
6.0
5.5
5.0
4.5
4.0
3.5
4Vp-p
3.0
7Vp-p
2.5
2.0
0
125MHz
Frequency (25MHz/div)
250MHz
+400
+300
+200
+100
0
â100
â200
â300
â400
SMALL-SIGNAL PULSE RESPONSE
G = +2
VO = 0.5Vp-p
Time (5ns/div)
LARGE-SIGNAL PULSE RESPONSE
+4
+3
G = +2
VO = 5Vp-p
+2
+1
0
â1
â2
â3
â4
Time (5ns/div)
0.2
0.18
0.16
0.14
0.12
0.1
COMPOSITE VIDEO dG/dP
Video
In
+5
1/2
OPA2691
402â¦
Video
Loads
402â¦
Optional 1.3kâ¦
â5 Pull-Down
No Pull-Down
With 1.3k⦠Pull-Down
dG
dG
0.08
0.06
dP
0.04
0.02
dP
0
1
2
3
4
Number of 150⦠Loads
â55
â60
â65
â70
â75
â80
â85
â90
â95
â100
1
CHANNEL-TO-CHANNEL CROSSTALK
10
100
Frequency (MHz)
OPA2691
5
SBOS224D
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