參數(shù)資料
型號: OPA681N
英文描述: Wideband, Current Feedback OPERATIONAL AMPLIFIER With Disable
中文描述: 寬帶,電流反饋運算放大器,禁用
文件頁數(shù): 10/21頁
文件大?。?/td> 241K
代理商: OPA681N
10
OPA681
TYPICAL PERFORMANCE CURVES: V
S
= +5V
(CONT)
G = +2, R
F
= 499
, and R
L
= 100
to +2.5V, unless otherwise noted (see Figure 2).
10
1
0.1
0.01
CLOSED-LOOP OUTPUT IMPEDANCE
Frequency (Hz)
10k
100M
100k
1M
10M
O
)
OPA681
402
+5
–5
402
50
Z
O
–45
–50
–55
–60
–65
–70
–75
–80
–85
Single-Tone Load Power (dBm)
–14
–12
–10
–8
–6
–4
–2
0
2
TWO-TONE, 3RD ORDER SPURIOUS LEVEL
3
50MHz
dBc = dB below carriers
20MHz
10MHz
Load Power at Matched 50
Load
–40
–50
–60
–70
–80
2ND HARMONIC DISTORTION vs FREQUENCY
Frequency (MHz)
0.1
1
10
20
2
V
O
= 2Vp-p
R
L
= 100
to 2.5V
G = +2, R
F
= 499
G = +10, R
F
= 200
G = +5, R
F
= 360
3RD HARMONIC DISTORTION vs FREQUENCY
Frequency (MHz)
0.1
1
10
20
3
–40
–50
–60
–70
–80
V
O
= 2Vp-p
R
L
= 100
to 2.5V
G = +10, R
F
= 200
G = +5, R
F
= 360
G = +2, R
F
= 499
2ND HARMONIC DISTORTION vs FREQUENCY
Frequency (MHz)
0.1
1
10
20
2
R
L
= 200
R
L
= 100
–50
–60
–70
–80
–90
V
O
= 2Vp-p
G = +2
Loads to 2.5V
R
L
= 500
3RD HARMONIC DISTORTION vs FREQUENCY
Frequency (MHz)
0.1
1
10
20
3
–50
–60
–70
–80
–90
V
O
= 2Vp-p
G = +2
R
L
= 100
R
L
= 500
R
L
= 200
Loads to 2.5V
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