TYPICAL PERFORMANCE CURVES: V
S
=
±
5V
G = +2, R
F
= 402Ω, R
L
= 100Ω, unless otherwise noted (see Figure 1).
SMALL-SIGNAL FREQUENCY RESPONSE
2
1
G = +1, R
F
= 453Ω
G = +2, R
F
= 402Ω
LARGE-SIGNAL FREQUENCY RESPONSE
8
7
6
Gain (1dB/div)
G = +2, R
L
= 100Ω
Normalized Gain (1dB/div)
0
–1
–2
–3
–4
–5
–6
–7
–8
0
125MHz
Frequency (25MHz/div)
250MHz
G = +5, R
F
= 261Ω
G = +10, R
F
= 180Ω
5
4
3
2
1
0
–1
–2
0
125MHz
Frequency (25MHz/div)
7Vp-p
4Vp-p
2Vp-p
1Vp-p
250MHz
SMALL-SIGNAL PULSE RESPONSE
400
G = +2
V
O
= 0.5Vp-p
LARGE-SIGNAL PULSE RESPONSE
+4
+3
Output Voltage (1V/div)
Output Voltage (100mV/div)
300
200
100
0
–100
–200
–300
–400
Time (5ns/div)
G = +2
V
O
= 5Vp-p
+2
+1
0
–1
–2
–3
–4
Time (5ns/div)
LARGE-SIGNAL DISABLE/ENABLE RESPONSE
CHANNEL-TO-CHANNEL CROSSTALK
V
DIS
(2V/div)
6.0
5.0
4.0
V
DIS
0
–10
–20
Crosstalk (10dB/div)
4.0
2.0
0
Output Voltage (400mV/div)
2.0
0
2.0
1.6
1.2
0.8
0.4
0
G = +2
V
IN
= +1V
(SO-14 only)
Output Voltage
–30
–40
–50
–60
–70
–80
–90
–100
Time (50ns/div)
1
10
Frequency (MHz)
100
®
5
OPA2681
BURR-BROWN [ BURR-BROWN CORPORATION ]
