Datasheet

OPA2677
11
SBOS126I
www.ti.com
TYPICAL CHARACTERISTICS: V
S
= +5V
At T
A
= +25°C, G = +4, R
F
= 453Ω, and R
L
= 100Ω to V
S
/2, unless otherwise noted.
NONINVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
Frequency (MHz)
0 50 100 150 200 250
6
3
0
–3
–6
–9
–12
–15
–18
Normalized Gain (dB)
See Figure 3
G = +1
R
F
= 536Ω
G = +2
R
F
= 511Ω
G = +4
R
F
= 453Ω
G = +8
R
F
= 332Ω
INVERTING SMALL-SIGNAL
FREQUENCY RESPONSE
Frequency (MHz)
0 50 100 150
200
250
6
3
0
–3
–6
–9
–12
–15
–18
Normalized Gain (dB)
G = –8
R
F
= 332Ω
G = –4
R
F
= 453Ω
G = –2
R
F
= 511Ω
G = –1
R
F
= 536Ω
See Figure 4
400
300
200
100
0
–100
–200
–300
–400
SMALL-SIGNAL PULSE RESPONSE
Time (5ns/div)
Output Voltage (100mV/div)
V
O
= 500mV
PP
See Figure 3
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2
–1.6
LARGE-SIGNAL PULSE RESPONSE
Time (5ns/div)
Output Voltage (400mV/div)
V
O
= 2V
PP
See Figure 3
RECOMMENDED R
S
vs CAPACITIVE LOAD
Capacitive Load (pF)
1 10 100 1000
50
45
40
35
30
25
20
15
10
5
0
R
S
(Ω)
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Frequency (Hz)
1M
2
0
–2
–4
–6
–8
–10
10M 100M 1G
Normalized Gain to Capacitive
Load (dB)
C
L
= 10pF
C
L
= 22pF
C
L
= 47pF
453Ω
150Ω
804Ω
804Ω
1kΩ
1kΩ Load Optional.
1/2
OPA2677
V
I
+5V
0.1µF
V
O
R
S
C
L
0.1µF
C
L
= 100pF