LMV7251M5 National Semiconductor, LMV7251M5 Datasheet

IC COMPARATOR 1.8V LO V SOT23-5

LMV7251M5

Manufacturer Part Number
LMV7251M5
Description
IC COMPARATOR 1.8V LO V SOT23-5
Manufacturer
National Semiconductor
Type
General Purposer
Datasheet

Specifications of LMV7251M5

Number Of Elements
1
Output Type
CMOS, Push-Pull, Rail-to-Rail
Voltage - Supply
1.8 V ~ 5 V, ±0.9 V ~ 2.5 V
Mounting Type
Surface Mount
Package / Case
SC-74A, SOT-753
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
LMV7251M5TR

Available stocks

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Part Number
Manufacturer
Quantity
Price
Part Number:
LMV7251M5
Manufacturer:
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LMV7251M5
Manufacturer:
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Quantity:
20 000
© 2001 National Semiconductor Corporation
LMV7251/LMV7255
1.8V Low Voltage Comparator with Rail-to-Rail Input
General Description
The LMV7251/LMV7255 are rail-to-rail input low voltage
comparators, which can operate at supply voltage range of
1.8V to 5.0V. The LMV7251/LMV7255 are available in space
saving SC-70 or SOT23-5 packages. These comparators
are ideal for low voltage and space critical designs.
The LMV7251 features a push-pull output stage. This feature
allows operation with minimum power consumption when
driving a load.
The LMV7255 features an open drain output. This allows the
connection of an external resistor at the output. The output of
the comparator can be used as a level shifter.
The IC’s are built with National Semiconductor’s advance
Submicron
LMV7251/LMV7255 have bipolar inputs for improved noise
performance and CMOS outputs for better rail-to-rail output
performance.
Typical Circuit
FIGURE 1. Threshold Detector
Silicon-Gate
BiCMOS
DS200057
process.
DS200057-2
The
Features
(V
n Single or Dual Supplies
n Low supply voltage
n Ultra low supply current
n Low input bias current
n Low input offset current
n Low input offset voltage
n Response time
n Input common mode voltage
Applications
n Mobile communications
n Laptops and PDA’s
n Battery powered electronics
n General purpose low voltage applications
Connection Diagram
S
= 1.8V, T
A
= 25˚C, Typical values unless specified).
Top View
670ns (20mV overdrive)
0.1V beyond rails
January 2001
www.national.com
1.8V to 5.0V
DS200057-1
+/−0.3mV
200pA
14nA
11µA

Related parts for LMV7251M5

LMV7251M5 Summary of contents

Page 1

... The LMV7255 features an open drain output. This allows the connection of an external resistor at the output. The output of the comparator can be used as a level shifter. The IC’s are built with National Semiconductor’s advance Submicron Silicon-Gate BiCMOS LMV7251/LMV7255 have bipolar inputs for improved noise performance and CMOS outputs for better rail-to-rail output performance ...

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 V Differential IN + − Supply Voltage ( Voltage at Input/Output pins Soldering Information Infrared or Convection (20 sec.) 1.8V Electrical Characteristics Unless otherwise specified, all limits guaranteed for T extremes ...

Page 3

AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T apply at the temperature extremes. Symbol Parameter t Propagation Delay PLH (Low to High) 2.7V Electrical Characteristics Unless otherwise specified, all limits guaranteed for T extremes. Symbol Parameter ...

Page 4

Electrical Characteristics Unless otherwise specified, all limits guaranteed for T tremes. Symbol Parameter V Input Offset Voltage Input Offset Average Drift OS I Input Bias Current B I Input Offset Current OS I Supply Current S ...

Page 5

Typical Performance Characteristics Short Circuit Current vs. Supply Voltage Output Voltage vs. Supply Voltage Output Voltage vs. Output Current @ Voltage (T = 25˚C, Unless otherwise specified). A Supply Current vs. Supply Voltage DS200057-3 Output Voltage vs. Supply Voltage DS200057-5 ...

Page 6

Typical Performance Characteristics Output Voltage vs. Output Current Voltage Response Time for Various Input Overdrives - t Response Time for Various Input Overdrives - t www.national.com (T = 25˚C, Unless otherwise specified). (Continued 2.7V Supply Output Voltage vs. ...

Page 7

Application Info Basic Comparators A comparator is quite often used to convert an analog signal to a digital signal. The comparator compares an input volt- age ( the non-inverting pin to the reference voltage ...

Page 8

Application Info (Continued) FIGURE 4. Inverting Configured Comparator — LMV7255 Input Stage The LMV7251 and LMV7255 have rail-to-rail input stages. The input common mode voltage range is from −100mV 100mV). CC Output Stage The LMV7251 has a ...

Page 9

... Ordering Information Package Ordering Info 5-Pin SOT23-5 LMV7251M5 LMV7251M5X LMV7255M5 LMV7255M5X 5-Pin SC-70 LMV7251M7 LMV7251M7X LMV7255M7 LMV7255M7X Pkg Marking Supplied As C16A 1k Units Tape and Reel C16A 3k units Tape and Reel C18A 1k Units Tape and Reel C18A 3k units Tape and Reel C17 ...

Page 10

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 5-Pin SC70-5 NS Package Number MAA05A 10 ...

Page 11

... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...

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