LMC7215 datasheet(1/11 Pages) NSC

Part #	LMC7215

Description	Micro-Power, Rail-to-Rail CMOS Comparators with Open-Drain/Push-Pull Outputs and TinyPak??Package

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LMC7215/LMC7225

Micro-Power, Rail-to-Rail CMOS Comparators with

Open-Drain/Push-Pull Outputs and TinyPak™ Package

General Description

The LMC7215/LMC7225 are ultra low power comparators

with a maximum of 1 µA power supply current. They are de-

signed to operate over a wide range of supply voltages, from

2V to 8V.

The LMC7215/LMC7225 have a greater than rail-to-rail com-

mon mode voltage range. This is a real advantage in single

supply applications.

The LMC7215 features a push-pull output stage. This fea-

ture allows operation with absolute minimum amount of

power consumption when driving any load.

The LMC7225 features an open drain output. By connecting

an external resistor, the output of the comparator can be

used as a level shifter to any desired voltage to as high as

15V.

The LMC7215/LMC7225 are designed for systems where

low power consumption is the critical parameter.

Guaranteed operation over the full supply voltage range of

2.7V to 5V and rail-to-rail performance makes this compara-

tor ideal for battery-powered applications.

Features

(Typical unless otherwise noted)

n Ultra low power consumption 0.7 µA

n Wide range of supply voltages 2V to 8V

n Input common-mode range beyond V+ and V−

n Open collector and push-pull output

n High output current drive: (@ VS = 5V) 45 mA

n Propagation delay (@ VS = 5V, 10 mV overdrive) 25 µs

n Tiny SOT23-5 package

n Latch-up resistance >300 mA

Applications

n Laptop computers

n Mobile phones

n Metering systems

n Hand-held electronics

n RC timers

n Alarm and monitoring circuits

n Window comparators, multivibrators

Connection Diagrams

TinyPak™ is a trademark of National Semiconductor Corporation.

8–Pin SO–8

DS012853-1

Top View

5–Pin SOT23-5

DS012853-2

Top View

September 1999

DS012853

www.national.com

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LMC7215 Datasheet(PDF) 1 Page - National Semiconductor (TI)

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