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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 1/18頁(yè) |
| 文件大?。?/td> | 394K |
| 代理商： | LM7121IN |
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TL/H/12348
L
February 1996
LM7121
235 MHz Tiny Low Power Voltage Feedback Amplifier
General Description
The LM7121 is a high performance operational amplifier
which addresses the increasing AC performance needs of
video and imaging applications, and the size and power
constraints of portable applications.
The LM7121 can operate over a wide dynamic range of
supply voltages, from 5V (single supply) up to
g
15V (see
the Application Information section for more details). It of-
fers an excellent speed-power product delivering 1300V/
m
s
and 235 MHz Bandwidth (
b
3 dB, A
V
e a
1). Another key
feature of this operational amplifier is stability while driving
unlimited capacitive loads.
Due to its Tiny SOT23-5 package, the LM7121 is ideal for
designs where space and weight are the critical parameters.
The benefits of the Tiny package are evident in small porta-
ble electronic devices, such as cameras, and PC video
cards. Tiny amplifiers are so small that they can be placed
anywhere on a board close to the signal source or near the
input to an A/D converter.
Features
(Typical unless otherwise noted) V
S
e
g
15V
Y
Easy to use voltage feedback topology
Y
Stable with unlimited capacitive loads
Y
Tiny SOT23-5 packageDtypical circuit layout takes half
the space of SO-8 designs
Y
Unity gain frequency
Y
Bandwidth (
b
3 dB, A
V
e a
1, R
L
e
100
X
)
Y
Slew rate
175 MHz
235 MHz
1300V/
m
s
5V to
g
15V
5V to
g
5V
Y
Supply Voltages DIP/SO-8
SOT23-5
Y
Characterized for
a
5V,
g
5V,
g
15V
Y
Low supply current
5.3 mA
Applications
Y
Scanners, color fax, digital copiers
Y
PC video cards
Y
Cable drivers
Y
Digital cameras
Y
ADC/DAC buffers
Y
Set-top boxes
Connection Diagram
8-Pin DIP/SO-8
TL/H/12348–2
Top View
5-Pin SOT23
TL/H/12348–1
Top View
Ordering Information
Package
Ordering Information
NSC Drawing
Number
Package
Marking
Supplied As
8-Pin Molded DIP
LM7121IN
N08E
LM7121IN
Rails
8-Pin SO-8
LM7121IM
M08A
LM7121IM
Rails
LM7121IMX
M08A
LM7121IM
2.5k Tape and Reel
5-Pin SOT23-5
LM7121IM5X
MA05A
A03A
3k Tape and Reel
C
1996 National Semiconductor Corporation
RRD-B30M66/Printed in U. S. A.
http://www.national.com
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