OPA3691 Datasheet, PDF (6/32 Pages) Burr-Brown (TI) – Triple Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL CHARACTERISTICS: V_S = ±5V
T_A = +25°C, G = +2, and R_L = 100Ω, (see Figure 1 for AC performance only), unless otherwise noted.
SMALL-SIGNAL FREQUENCY RESPONSE
1
G = +1, R_F = 453Ω
0
G = +2,
–1
R_F = 402Ω
–2
–3
–4
G = +5, R_F = 261Ω
–5
–6
G = +10, R_F = 180Ω
–7
–8
0
V_O = 0.5Vp-p
125MHz
Frequency (25MHz/div)
250MHz
LARGE-SIGNAL FREQUENCY RESPONSE
7.0
G = +2, R_L = 100Ω
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
–100
–200
–300
–400
SMALL-SIGNAL PULSE RESPONSE
G = +2
V_O = 0.5Vp-p
Time (5ns/div)
LARGE-SIGNAL PULSE RESPONSE
+4
+3
G = +2
V_O = 5Vp-p
+2
+1
0
–1
–2
–3
–4
Time (5ns/div)
0.2
0.18
0.16
0.14
0.12
0.1
COMPOSITE VIDEO dG/dP
Video
In
+5
1/3
OPA3691
402Ω
Video
Loads
402Ω
Optional 1.3kΩ
–5 Pull-Down
No Pull-Down
With 1.3kΩ Pull-Down
dG
dG
0.08
0.06
dP
0.04
0.02
dP
0
1
2
3
4
Number of 150Ω Loads
DISABLED FEEDTHROUGH vs FREQUENCY
–45
–50
V_DIS = 0
–55
–60
–65
–70
–75
–80 _Reverse
–85
–90
Forward
–95
–100
0.3
1
10
100
Frequency (MHz)
6
OPA3691
www.ti.com
SBOS227E