LMC6772AIM NSC [National Semiconductor], LMC6772AIM Datasheet

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LMC6772AIM

Manufacturer Part Number
LMC6772AIM
Description
Dual Micropower Rail-To-Rail Input CMOS Comparator with Open Drain Output
Manufacturer
NSC [National Semiconductor]
Datasheet

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© 1999 National Semiconductor Corporation
LMC6772
Dual Micropower Rail-To-Rail Input CMOS Comparator
with Open Drain Output
General Description
The LMC6772 is an ultra low power dual comparator with a
maximum 10 µA/comparator power supply current. It is de-
signed to operate over a wide range of supply voltages, with
a minimum supply voltage of 2.7V.
The common mode voltage range of the LMC6772 exceeds
both the positive and negative supply rails, a significant ad-
vantage in single supply applications. The open drain output
of the LMC6772 allows for wired-OR configurations. The
open drain output also offers the advantage of allowing the
output to be pulled to any voltage rail up to 15V, regardless
of the supply voltage of the LMC6772.
The LMC6772 is targeted for systems where low power con-
sumption is the critical parameter. Guaranteed operation at
supply voltages of 2.7V and rail-to-rail performance makes
this comparator ideal for battery-powered applications.
Refer to the LMC6762 datasheet for a push-pull output stage
version of this device.
Connection Diagram
Ordering Information
8-Pin Molded DIP
8-Pin Small Outline
Package
LMC6772AIN, LMC6772BIN
LMC6772AIM, LMC6772BIM
LMC6772AIMX, LMC6772BIMX
DS012347
Temperature Range
−40˚C to +85˚C
8-Pin DIP/SO
Top View
Features
(Typical unless otherwise noted)
n Low power consumption (max):
n Wide range of supply voltages: 2.7V to 15V
n Rail-to-Rail Input Common Mode Voltage Range
n Open drain output
n Short circuit protection: 40 mA
n Propagation delay (
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
DS012347-1
NSC Drawing
N08E
M08A
M08A
@
V
S
= 5V, 100 mV overdrive): 5 µs
Tape and Reel
Transport
Media
Rails
Rails
I
S
= 10 µA/comp
September 1995
www.national.com

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LMC6772AIM Summary of contents

Page 1

... Connection Diagram Ordering Information Package 8-Pin Molded DIP LMC6772AIN, LMC6772BIN 8-Pin Small Outline LMC6772AIM, LMC6772BIM LMC6772AIMX, LMC6772BIMX © 1999 National Semiconductor Corporation DS012347 Features (Typical unless otherwise noted) n Low power consumption (max): n Wide range of supply voltages: 2.7V to 15V n Rail-to-Rail Input Common Mode Voltage Range ...

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 (V Voltage at Input/Output Pin (V + − Supply Voltage (V –V ...

Page 3

Electrical Characteristics Unless otherwise specified, all limits guaranteed for T apply at the temperature extremes. Symbol Parameter I Input Current B I Input Offset Current OS CMRR Common Mode Rejection Ratio PSRR Power Supply Rejection Ratio A ...

Page 4

AC Electrical Characteristics Unless otherwise specified, all limits guaranteed for T the temperature extreme. Symbol Parameter kHz, t Propagation Delay PLH = 50 pF (Low to High (Note 2.7V ...

Page 5

Typical Performance Characteristics specified (Continued 2. DS012347-9 Output Voltage vs Output Current (Sinking) DS012347-12 Output Short Circuit Current (Sinking) vs Supply Voltage DS012347- 5V, Single Supply ...

Page 6

Typical Performance Characteristics specified (Continued) Response Time for Overdrive (t ) PHL DS012347-18 Response Time for Overdrive (t ) PLH DS012347-21 Application Hints 1.0 Input Common-Mode Voltage Range At supply voltages of 2.7V, 5V and 15V, the LMC6772 has an ...

Page 7

Input Common-Mode Voltage Range (Continued) LMC6772 can compare the sensor signal with an appropri- ately small reference voltage. This reference voltage can be close to ground or the positive supply rail. 2.0 Low Voltage Operation Comparators are the common ...

Page 8

Typical Applications (Continued) One-Shot Multivibrator FIGURE 5. One-Shot Multivibrator A monostable multivibrator has one stable state in which it can remain indefinitely. It can be triggered externally to an- other quasi-stable state. A monostable multivibrator can thus be used to ...

Page 9

Typical Applications (Continued) The circuit shown above provides output signals at a pre- scribed time interval from a time reference and automatically resets the output when the input returns to ground. Consider = 0. The output of comparator 4 is ...

Page 10

Physical Dimensions inches (millimeters) unless otherwise noted www.national.com 8-Pin Small Outline Package Order Number LMC6772AI or LMC6772BI NS Package Number M08A 8-Pin Molded Dual-In-Line Package Order Number LMC6772AI or LMC6772BI NS Package Number N08E 10 ...

Page 11

LIFE SUPPORT POLICY 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 OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems ...

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