OPA2681 Datasheet, PDF (5/21 Pages) Burr-Brown (TI) – Dual Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable

TYPICAL PERFORMANCE CURVES: V_S = ±5V
G = +2, R_F = 402Ω, R_L = 100Ω, unless otherwise noted (see Figure 1).
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
0
SMALL-SIGNAL FREQUENCY RESPONSE
G = +1, R_F = 453Ω
G = +2, R_F = 402Ω
G = +5, R_F = 261Ω
G = +10, R_F = 180Ω
125MHz
Frequency (25MHz/div)
250MHz
LARGE-SIGNAL FREQUENCY RESPONSE
8
7 ^{G = +2, RL = 100Ω}
6
5
2Vp-p
4
3
2
1Vp-p
4Vp-p
1
0
7Vp-p
–1
–2
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)
LARGE-SIGNAL DISABLE/ENABLE RESPONSE
5.0
6.0
4.0
V_DIS
4.0
2.0
2.0
0
0
2.0
Output Voltage
1.6
1.2
0.8
0.4
G = +2
V_IN = +1V
0
(SO-14 only)
Time (50ns/div)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
1
CHANNEL-TO-CHANNEL CROSSTALK
10
100
Frequency (MHz)
®
5
OPA2681