LM7121IN National Semiconductor, LM7121IN Datasheet

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LM7121IN

Manufacturer Part Number
LM7121IN
Description
IC AMP FEEDBACK 235MHZ 8DIP
Manufacturer
National Semiconductor
Datasheet

Specifications of LM7121IN

Amplifier Type
Voltage Feedback
Number Of Circuits
1
Slew Rate
1300 V/µs
Gain Bandwidth Product
175MHz
-3db Bandwidth
235MHz
Current - Input Bias
5.2µA
Voltage - Input Offset
900µV
Current - Supply
5.3mA
Current - Output / Channel
71mA
Voltage - Supply, Single/dual (±)
4.5 V ~ 33 V, ±2.25 V ~ 16.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
Other names
*LM7121IN

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM7121IN
Manufacturer:
NSC
Quantity:
5 510
Part Number:
LM7121IN
Manufacturer:
AD
Quantity:
5 510
C 1996 National Semiconductor Corporation
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
the Application Information section for more details) It of-
fers an excellent speed-power product delivering 1300V
and 235 MHz Bandwidth (
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
Connection Diagram
Ordering Information
8-Pin Molded DIP
8-Pin SO-8
5-Pin SOT23-5
Package
8-Pin DIP SO-8
b
Ordering Information
LM7121IN
LM7121IM
LM7121IMX
LM7121IM5X
3 dB A
Top View
TL H 12348
V
e a
1) Another key
g
TL H 12348 – 2
15V (see
s
NSC Drawing
Number
MA05A
Features
(Typical unless otherwise noted) V
Y
Y
Y
Y
Y
Y
Y
Y
Y
Applications
Y
Y
Y
Y
Y
Y
N08E
M08A
M08A
Easy to use voltage feedback topology
Stable with unlimited capacitive loads
Tiny SOT23-5 package typical circuit layout takes half
the space of SO-8 designs
Unity gain frequency
Bandwidth (
Slew rate
Supply Voltages DIP SO-8
Characterized for
Low supply current
Scanners color fax digital copiers
PC video cards
Cable drivers
Digital cameras
ADC DAC buffers
Set-top boxes
RRD-B30M66 Printed in U S A
b
3 dB A
LM7121IN
LM7121IM
LM7121IM
A03A
Package
Marking
SOT23-5
V
5-Pin SOT23
e a
Top View
1 R
S
L
e
2 5k Tape and Reel
3k Tape and Reel
e
g
Supplied As
http
a
100 )
15V
5V
Rails
Rails
February 1996
www national com
5V to
g
5V to
TL H 12348 – 1
1300V
5V
175 MHz
235 MHz
5 3 mA
g
g
g
15V
15V
5V
s

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LM7121IN Summary of contents

Page 1

... Scanners color fax digital copiers Y PC video cards Y Cable drivers Y Digital cameras Y ADC DAC buffers Y Set-top boxes 12348 – 2 NSC Drawing Package Number Marking N08E LM7121IN M08A LM7121IM M08A LM7121IM MA05A A03A RRD-B30M66 Printed February 1996 15V 175 MHz 1 R 100 ) 235 MHz e a ...

Page 2

... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications ESD Tolerance (Note 2) Differential Input Voltage (Note 7) Voltage at Input Output Pin ( Supply Voltage (V a – Output Short Circuit to Ground (Note 3) ...

Page 3

DC Electrical Characteristics g Unless otherwise specified all limits guaranteed for T Boldface limits apply at the temperature extremes (Continued) Symbol Parameter I Output Short Circuit SC Current I Supply Current S 15V AC Electrical Characteristics g Unless otherwise ...

Page 4

DC Electrical Characteristics g Unless otherwise specified all limits guaranteed for T Boldface limits apply at the temperature extremes Symbol Parameter V Input Offset Voltage OS I Input Bias Current B I Input Offset Current OS R Input Resistance ...

Page 5

AC Electrical Characteristics g Unless otherwise specified all limits guaranteed for T Boldface limits apply at the temperature extremes Symbol Parameter SR Slew Rate (Note 8) GBW Unity Gain-Bandwidth Phase Margin dB) Bandwidth b (Notes ...

Page 6

DC Electrical Characteristics a Unless otherwise specified all limits guaranteed for T Boldface limits apply at the temperature extremes (Continued) Symbol Parameter A Large Signal V Voltage Gain V Output Swing O I Output Short Circuit SC Current I ...

Page 7

Typical Performance Characteristics Supply Current vs Supply Voltage TL H 12348–66 Input Bias Current vs Temperature TL H 12348–69 Short Circuit Current vs Temperature (Sourcing 12348–78 Output Voltage vs Output Current (I V 15V SOURCE S ...

Page 8

Typical Performance Characteristics Output Voltage vs Output Current ( SOURCE 12348– 74 PSRR vs Frequency TL H 12348–4 Open Loop Frequency Response TL H 12348– 89 GBWP 10 MHz vs Supply Voltage TL ...

Page 9

Typical Performance Characteristics Input Voltage Noise vs Frequency TL H 12348–27 Input Current Noise vs Frequency TL H 12348–30 Slew Rate vs Input Voltage TL H 12348–33 Large Signal Pulse Response ...

Page 10

Typical Performance Characteristics Large Signal Pulse Response 12348– 39 Large Signal Pulse Response 12348– 42 Small ...

Page 11

Typical Performance Characteristics Small Signal Pulse Response 100 12348–51 Closed Loop Frequency Response vs Temperature 100 ...

Page 12

Typical Performance Characteristics Total Harmonic Distortion vs Frequency TL H 12348– 80 Total Harmonic Distortion vs Frequency TL H 12348– 82 Undistorted Output Swing vs Frequency http www national com unless otherwise specified (Continued) ...

Page 13

Application Information The table below depicts the maximum operating supply voltage for each package type TABLE I Maximum Supply Voltage Values SOT23-5 SO-8 Single Supply 10V 30V Dual Supplies 5V 15V g g Stable unity gain operation is possible with ...

Page 14

Application Information Color Video on Twisted Pairs Using Single Supply The circuit shown in Figure 4 can be used to drive in excess of 25 meters length of twisted pair cable with no loss of resolution or picture definition when ...

Page 15

Application Information (Continued) Differential Gain and Differential Phase errors measured at the load are less than 1% and 1 respectively R and C can be adjusted for various cable lengths compensate for the line losses and for ...

Page 16

http www national com 16 ...

Page 17

Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead (0 150 Wide) Small Outline Package JEDEC Order Number LM7121IM or LM7121IMX NS Package Number M08A 5-Lead Molded SOT23-5 Order Number LM7121IM5X NS Package Number MA05A 17 http www national com ...

Page 18

... Italiano National does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications Order Number LM7121IN NS Package Number N08E 2 A critical component is any component of a life ...

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