LMV7219M7X National Semiconductor, LMV7219M7X Datasheet

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LMV7219M7X

Manufacturer Part Number
LMV7219M7X
Description
7 nsec, 2.7V to 5V Comparator with Rail-to Rail Output
Manufacturer
National Semiconductor
Datasheet

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© 2001 National Semiconductor Corporation
LMV7219
7 nsec, 2.7V to 5V Comparator with Rail-to-Rail Output
General Description
The LMV7219 is a low-power, high-speed comparator with
internal hysteresis. The LMV7219 operating voltage ranges
from 2.7V to 5V with push/pull rail-to-rail output. This device
achieves a 7ns propagation delay while consuming only
1.1mA of supply current at 5V.
The LMV7219 inputs have a common mode voltage range
that extends 200mV below ground, allowing ground sensing.
The internal hysteresis ensures clean output transitions even
with slow-moving inputs signals.
The LMV7219 is available in the SC70-5 and SOT23-5
packages, which are ideal for systems where small size and
low power are critical.
Typical Application
DS101054
Features
(V
n Propagation delay
n Low supply current
n Input common mode voltage range extends 200mv
n Ideal for 2.7V and 5V single supply applications
n Internal hysteresis ensures clean switching
n Fast rise and fall time
n Available in space-saving packages: 5-pin SC70-5 and
Applications
n Portable and battery-powered systems
n Scanners
n Set top boxes
n High speed differential line receiver
n Window comparators
n Zero-crossing detectors
n High-speed sampling circuits
S
below ground
SOT23-5
= 5V, T
DS101054-1
A
= 25˚C, Typical values unless specified)
December 2001
www.national.com
1.1mA
1.3ns
7ns

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LMV7219M7X Summary of contents

Page 1

... The internal hysteresis ensures clean output transitions even with slow-moving inputs signals. The LMV7219 is available in the SC70-5 and SOT23-5 packages, which are ideal for systems where small size and low power are critical. Typical Application © 2001 National Semiconductor Corporation Features ( 25˚C, Typical values unless specified) S ...

Page 2

... Ordering Information Package 5-pin SC70-5 5-pin SOT23-5 Simplified Schematic www.national.com SC70-5/SOT23-5 DS101054-2 Top View Part Number Marking LMV7219M7 C15 LMV7219M7X C15 LMV7219M5 C14A LMV7219M5X C14A 2 Supplied as NSC Drawing 1k Units Tape and Reel MAA05A 3k Units Tape and Reel 1k Units Tape and Reel ...

Page 3

... 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) Machine Body Human Model Body Differential Input Voltage Output Short Circuit Duration + − Supply Voltage ( Soldering Information Infrared or Convection (20 sec) Wave Soldering (10 sec) 2 ...

Page 4

Electrical Characteristics Unless otherwise specified, all limits guaranteed for T − Boldface limits apply at the temperature extremes. Symbol Parameter t Propagation Delay PD t Propagation Delay Skew SKEW t Output Rise Time r t Output Fall ...

Page 5

Electrical Characteristics Unless otherwise specified, all limits guaranteed for T − Boldface limits apply at the temperature extremes. Symbol Parameter t Propagation Delay PD t Propagation Delay Skew SKEW t Output Rise Time r t Output Fall ...

Page 6

Typical Performance Characteristics Supply Current vs. Supply Voltage Input Offset and Trip Voltage vs. Supply Voltage Sourcing Current vs. Output Voltage www.national.com Unless otherwise specified vs. OS Supply Voltage DS101054-4 Sourcing Current vs. Output Voltage DS101054-6 Sinking Current ...

Page 7

Typical Performance Characteristics 25˚C (Continued) Sinking Current vs. Output Voltage Propagation Delay vs. Temperature ( 15mV Propagation Delay vs. Input Overdrive Unless otherwise specified, V Propagation Delay vs. Temperature (V = 2.7V ...

Page 8

Typical Performance Characteristics Unless otherwise specified 5V 10pF 25˚C (Continued Propagation Delay ( Application Section LMV7219 is a single supply comparator with internal hyster- esis, 7ns of propagation delay ...

Page 9

Application Section (Continued) FIGURE 2. Additional Hysteresis Circuit Layout and Bypassing The LMV7219 requires high-speed layout. Follow these lay- out guidelines: 1. Power supply bypassing is critical, and will improve sta- bility and transient response. A decoupling capacitor such as ...

Page 10

Application Section (Continued) IR Receiver The LMV7219 is an ideal candidate to be used as an infrared receiver. The infrared photo diode creates a current relative to the amount of infrared light present. The current creates a voltage across RD. ...

Page 11

... Physical Dimensions inches (millimeters) unless otherwise noted 5-Pin SC70-5 Tape and Reel Order Numbers LMV7219M7 or LMV7219M7X NS Package Number MAA05A 11 www.national.com ...

Page 12

... 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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