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參數(shù)資料
| 型號： | LM7121IN |
| 英文描述： | IC-200MHZ FEEDBACK AMP |
| 中文描述： | 集成電路200MHz的反饋放大器 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大小： | 394K |
| 代理商： | LM7121IN |
a
5V DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
e
25
§
C, V
a
e a
5V, V
b
e
0V, V
CM
e
V
O
e
V
a
/2 and R
L
l
1 M
X
.
Boldface
limits apply at the temperature extremes. (Continued)
Symbol
Parameter
Conditions
(Note 5)
Typ
LM7121I
Limit
(Note 6)
Units
A
V
Large Signal
Voltage Gain
R
L
e
2 k
X
to V
a
/2
64
dB
V
O
Output Swing
R
L
e
2 k
X
to V
a
/2, High
R
L
e
2 k
X
to V
a
/2, Low
R
L
e
150
X
to V
a
/2, High
R
L
e
150
X
to V
a
/2, Low
3.7
V
1.3
3.48
1.59
I
SC
Output Short Circuit
Current
Sourcing
33
mA
Sinking
20
mA
I
S
Supply Current
4.8
mA
a
5V AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
e
25
§
C, V
a
e a
5V, V
b
e
0V, V
CM
e
V
O
e
V
a
/2 and R
L
l
1 M
X
.
Boldface
limits apply at the temperature extremes.
Symbol
Parameter
Conditions
(Note 5)
Typ
LM7121I
Limit
(Note 6)
Units
SR
Slew Rate
(Note 8)
A
V
e a
2, R
L
e
1 k
X
to
V
a
/2, V
O
e
1.8 V
PP
R
L
e
1k, to V
a
/2
R
L
e
1k to V
a
/2
R
L
e
100
X
to V
a
/2, A
V
e a
1
R
L
e
100
X
to V
a
/2, A
V
e a
2
145
V/
m
s
GBW
Unity Gain-Bandwidth
80
MHz
w
m
Phase Margin
70
Deg
f (
b
3 dB)
Bandwidth
(Notes 9, 10)
200
MHz
45
t
r
, t
f
Rise and Fall Time
(Note 10)
A
V
e a
2, R
L
e
100
X
,
V
O
e
0.2 V
PP
8
ns
T.H.D.
Total Harmonic Distortion
0.6 V
PP
Output, R
L
e
150
X
,
A
V
e a
2, f
e
1 MHz
0.067
%
0.6 V
PP
Output, R
L
e
150
X
,
A
V
e a
2, f
e
5 MHz
0.33
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2:
Human body model, 1.5 k
X
in series with 100 pF.
Note 3:
Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature can result in exceeding the
maximum allowed junction temperature of 150
§
C.
Note 4:
The maximum power dissipation is a function of T
J(max)
,
i
JA
, and T
A
. The maximum allowable power dissipation at any ambient temperature is P
D
e
(T
J(max)
–T
A
)/
i
JA
. All numbers apply for packages soldered directly into a PC board.
Note 5:
Typical Values represent the most likely parametric norm.
Note 6:
All limits are guaranteed by testing or statistical analysis.
Note 7:
Differential input voltage is measured at V
S
e
g
15V.
Note 8:
Slew rate is the average of the rising and fallng slew rates.
Note 9:
Unity gain operation for
g
5V and
g
15V supplies is with a feedback network of 510
X
and 3 pF in parallel (see the Application Information section). For
a
5V single supply operation, feedback is a direct short from the output to the inverting input.
Note 10:
A
V
e a
2 operation with 2 k
X
resistors and 2 pF capacitor from summing node to ground.
http://www.national.com
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