參數(shù)資料
型號: LM7121
廠商: National Semiconductor Corporation
英文描述: 235 MHz Tiny Low Power Voltage Feedback Amplifier
中文描述: 235兆赫微型低功耗電壓反饋放大器
文件頁數(shù): 4/19頁
文件大小: 666K
代理商: LM7121
±
5V DC Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 5V, V
= 5V, V
CM
= V
O
= 0V and R
L
>
1 M
.
Bold-
face
limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
LM7121I
Limit
(Note 6)
Units
C
IN
CMRR
Input Capacitance
Common Mode
Rejection Ratio
Positive Power Supply
Rejection Ratio
Negative Power Supply
Rejection Ratio
Input Common Mode
Voltage Range
Common Mode
2V
V
CM
2V
2.3
75
pF
dB
min
dB
min
dB
min
V
min
V
max
dB
min
V
min
V
max
V
min
V
max
mA
min
mA
min
mA
max
65
60
65
60
65
60
2.5
+PSRR
3V
V
+
5V
89
PSRR
5V
V
3V
78
V
CM
CMRR
60 dB
3
3
2.5
A
V
Large Signal
Voltage Gain
Output Swing
R
L
= 2 k
, V
O
= 3 V
PP
66
60
58
3.0
2.75
3.0
2.70
2.5
2.3
2.15
2.00
38
33
21
19
6.4
7.2
V
O
R
L
= 2 k
3.62
3.62
R
L
= 150
3.1
2.8
I
SC
Output Short Circuit
Current
Sourcing
53
Sinking
29
I
S
Supply Current
5.1
±
5V AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C, V
+
= 5V, V
= 5V, V
CM
= V
O
= 0V and R
L
>
1 M
.
Bold-
face
limits apply at the temperature extremes.
Symbol
Parameter
Conditions
Typ
(Note 5)
LM7121I
Limit
(Note 6)
Units
SR
Slew Rate
(Note 8)
Unity Gain-Bandwidth
Phase Margin
Bandwidth
(Notes 9, 10)
Settling Time
A
V
= +2, R
L
= 1 k
,
V
O
= 6 V
PP
R
L
= 1 k
R
L
= 1 k
R
L
= 100
, A
V
= +1
R
L
= 100
, A
V
= +2
5 V
PP
Step, to 0.1%,
R
L
= 500
A
V
= +2, R
L
= 100
,
V
O
= 0.4 V
PP
A
V
= +2, R
L
= 150
520
V/μs
GBW
φ
m
f (3 dB)
105
74
160
50
65
MHz
Deg
MHz
t
s
ns
t
r
, t
f
Rise and Fall Time
(Note 10)
Differential Gain
5.8
ns
A
D
0.3
%
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4
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