LMV7291MGX/NOPB National Semiconductor, LMV7291MGX/NOPB Datasheet

IC COMPARATOR 1.8V R-R LP SC70-5

LMV7291MGX/NOPB

Manufacturer Part Number
LMV7291MGX/NOPB
Description
IC COMPARATOR 1.8V R-R LP SC70-5
Manufacturer
National Semiconductor
Series
PowerWise®r
Type
General Purposer
Datasheet

Specifications of LMV7291MGX/NOPB

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
6-TSSOP (5 lead), SC-88A, SOT-353
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LMV7291MGX
© 2004 National Semiconductor Corporation
LMV7291
Single 1.8V Low Power Comparator with Rail-to-Rail
Input
General Description
The LMV7291 is a rail-to-rail input low power comparator,
characterized at supply voltage 1.8V, 2.7V and 5.0V. It con-
sumes only 9uA supply current per channel while achieving
a 800ns propagation delay.
The LMV7291 is available in SC70 package. With this tiny
package, the PC board area can be significantly reduced. It
is ideal for low voltage, low power and space critical designs.
The LMV7291 features a push-pull output stage which al-
lows operation with minimum power consumption when driv-
ing a load.
The LMV7291 is built with National Semiconductor’s ad-
vance submicron silicon-gate BiCMOS process. It has bipo-
lar inputs for improved noise performance and CMOS out-
puts for rail-to-rail output swing.
Typical Circuit
DS200800
FIGURE 1. Threshold Detector
Features
(V
n Single Supply
n Ultra low supply current
n Low input bias current
n Low input offset current
n Low guaranteed V
n Propagation delay
n Input common mode voltage range
Applications
n Mobile communications
n Laptops and PDA’s
n Battery powered electronics
n General purpose low voltage applications
S
= 1.8V, T
A
20080024
= 25˚C, Typical values unless specified).
OS
880ns (20mV overdrive)
0.1V beyond rails
9µA per channel
www.national.com
March 2004
200pA
10nA
4mV

Related parts for LMV7291MGX/NOPB

LMV7291MGX/NOPB Summary of contents

Page 1

... The LMV7291 features a push-pull output stage which al- lows operation with minimum power consumption when driv- ing a load. The LMV7291 is built with National Semiconductor’s ad- vance submicron silicon-gate BiCMOS process. It has bipo- lar inputs for improved noise performance and CMOS out- puts for rail-to-rail output swing. ...

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

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

Page 4

Electrical Characteristics Unless otherwise specified, all limits guaranteed for T tremes. Symbol Parameter V Output Voltage High OH V Output Voltage Low OL V Input Common Voltage Range CM CMRR Common Mode Rejection Ratio PSRR Power Supply Rejection Ratio ...

Page 5

Connection Diagram Ordering Information Package Part Number LMV7291MG 5-Pin SC70 LMV7291MGX 5-Pin SC70 20080023 Top View Package Marking Transport Media 1k Units Tape and Reel C36 3k Units Tape and Reel 5 NSC Drawing MAA05A www.national.com ...

Page 6

Typical Performance Characteristics (T = 25˚C, Unless otherwise specified vs vs Supply Current vs. Supply Voltage www.national.com 20080028 Short Circuit vs. Supply Voltage 20080030 Supply Current vs. Supply Voltage 20080002 6 ...

Page 7

Typical Performance Characteristics Supply Current vs. Supply Voltage Output Negative Swing vs. V Output Negative Swing vs 25˚C, Unless otherwise specified). (Continued) A Output Positive Swing vs. V 20080032 Output Positive Swing vs. I SUPPLY 20080034 Output ...

Page 8

Typical Performance Characteristics Output Negative Swing vs. I Output Positive Swing vs. I Propagation Delay (t www.national.com (T = 25˚C, Unless otherwise specified). (Continued) A Output Negative Swing vs. I SINK 20080038 SOURCE 20080040 ) PHL 20080018 8 SINK 20080039 ...

Page 9

Typical Performance Characteristics Propagation Delay (t Propagation Delay (t t vs. Overdrive PLH (T = 25˚C, Unless otherwise specified). (Continued PHL 20080020 ) PHL 20080022 20080049 9 Propagation Delay (t ) PLH 20080016 t vs. Overdrive PHL 20080050 ...

Page 10

Application Notes BASIC COMPARATOR A comparator is often used to convert an analog signal to a digital signal. As shown in Figure 2, the comparator com- pares an input voltage ( reference voltage (V IN LMV7291 RAIL-TO-RAIL ...

Page 11

Application Notes (Continued) FIGURE 3. Inverting Comparator with Hysteresis Non-Inverting Comparator with Hysteresis A non-inverting comparator with hysteresis requires a two resistor network, and a voltage reference (V verting input (Figure 4). When V is low, the output is also ...

Page 12

Application Notes (Continued) FIGURE 4. Non-Inverting Comparator with Hysteresis CIRCUIT TECHNIQUES FOR AVOIDING OSCILLATIONS IN COMPARATOR APPLICATIONS Feedback to almost any pin of a comparator can result in oscillation. In addition, when the input signal is a slow volt- age ...

Page 13

Typical Applications (Continued) FIGURE 6. Negative Peak Detector SQUARE WAVE GENERATOR A typical application for a comparator square wave oscillator. The circuit below generates a square wave whose period is set by the RC time constant of ...

Page 14

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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