參數(shù)資料
型號: OPA681DATASHEET
英文描述: OPA681 Data Sheet - SpeedPlus Wideband. Current Feedback OPERATIONAL AMPLIFIER With Disable
中文描述: OPA681數(shù)據(jù)表- SpeedPlus寬帶。電流反饋運算放大器,禁用
文件頁數(shù): 9/21頁
文件大小: 241K
代理商: OPA681DATASHEET
OPA681
9
TYPICAL PERFORMANCE CURVES: V
S
= +5V
G = +2, R
F
= 499
, and R
L
= 100
to +2.5V, unless otherwise noted (see Figure 2).
2.10
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
SMALL-SIGNAL PULSE RESPONSE
Time (5ns/div)
O
G = +2
V
O
= 0.5Vp-p
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
Frequency (25MHz/div)
0
250
125
SMALL-SIGNAL FREQUENCY RESPONSE
N
G = +2,
R
F
= 499
G = +10,
R
F
= 200
G = +5,
R
F
= 360
G = +1,
R
F
= 649
70
60
50
40
30
20
10
0
RECOMMENDED R
S
vs CAPACITIVE LOAD
Capacitive Load (pF)
1
10
100
R
S
)
8
7
6
5
4
3
2
1
0
–1
–2
Frequency (25MHz/div)
0
250
125
LARGE-SIGNAL FREQUENCY RESPONSE
G
G = +2
R
L
= 100
to 2.5V
V
O
= 0.5Vp-p
V
O
= 1Vp-p
V
O
= 2Vp-p
4.5
4.1
3.7
3.3
2.9
2.5
2.1
1.7
1.3
0.9
0.5
LARGE-SIGNAL PULSE RESPONSE
Time (5ns/div)
O
G = +2
V
O
= 2Vp-p
15
12
9
6
3
0
–3
–6
–9
–12
–15
FREQUENCY RESPONSE vs CAPACITIVE LOAD
Frequency (20MHz/div)
0
200MHz
100MHz
G
C
L
= 22pF
C
L
= 10pF
C
L
= 47pF
C
L
= 100pF
OPA681
499
499
0.1
μ
F
57.6
806
806
1k
V
I
+5V
V
O
R
S
C
L
0.1
μ
F
1k
is optional.
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