Bay Linear
Inspire the Linear Power
Low Power Low Offset Voltage Dual
Comparators
LM393
Description
The LM393 consists of two independent precision voltage
comparators with an offset voltage specification as low as 2.0
mV max for two comparators which were designed specifically
to operate from a single power supply over a wide range of
voltages. Operation from split power supplies is also possible
and the low power supply current drain is independent of the
magnitude of the power supply voltage. These comparators
also have a unique characteristic in that the input common-
mode voltage range includes ground, even though operated
from a single power supply voltage.
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay
generators; wide range VCO; MOS clock timers;
multivibrators and high voltage digital logic gates. The LM393
was designed to directly interface with TTL and CMOS. When
operated from both plus and minus power supplies, the LM393
will directly interface with MOS logic where their low power
drain is a distinct advantage over standard comparators.
Features
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Wide supply Voltage range: 2.0V to 36V
Single or dual supplies: ± 1.0V to ± 18V
Very low supply current drain ( 0.4 mA)
independent of supply voltage
Low input biasing current: 25 nA
Low input offset current: ± 5 nA
Maximum offset voltage: ± 3 mV
Input common- mode voltage range
includes ground
Differential input voltage range equal to the
power supply voltage
Low output saturation voltage,: 250 mV at
4 mA
Output voltage compatible with TTL, DTL,
ECL, MOS and CMOS logic systems
Pin Connection
Ordering Information
Devices
LM393M
LM393P
Package
SO-8
8-DIP
Temp.
0
°C
to 70
°C
0
°C
to 70
°C
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
LM393
Absolute Maximum Rating
Parameter
Supply Voltage
Differential Input Voltage
Input Voltage
Input Current
Storage Temperature
Lead Temperature (solder 10 Second)
ESD
LM393
36
36
-0.3 to 36
50
0 to 70
260
250
Unit
V
V
V
mA
°C
°C
V
Electrical Characteristics
(V
CC
= 5V; T
J
=25
°C
, unless otherwise specified)
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
Advance Information-
These data sheets contain descriptions of products that are in development. The specifications are based on the engineering calculations,
computer simulations and/ or initial prototype evaluation.
Preliminary Information-
These data sheets contain minimum and maximum specifications that are based on the initial device characterizations. These limits are
subject to change upon the completion of the full characterization over the specified temperature and supply voltage ranges.
The application circuit examples are only to explain the representative applications of the devices and are not intended to guarantee any circuit
design or permit any industrial property right to other rights to execute. Bay Linear takes no responsibility for any problems related to any
industrial property right resulting from the use of the contents shown in the data book. Typical parameters can and do vary in different
applications. Customer’s technical experts must validate all operating parameters including “ Typical” for each customer application.
LIFE SUPPORT AND NUCLEAR POLICY
Bay Linear products are not authorized for and should not be used within life support systems which are intended for surgical
implants into the body to support or sustain life, in aircraft, space equipment, submarine, or nuclear facility applications without
the specific written consent of Bay Linear President.
Bay Linear, Inc
2418 Armstrong Street, Livermore, CA 94550 Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
