Wing Shing LM393N, LM393M Datasheet

General Description

Dual Differential Comparators

Pin Configuration

1

WS393MX

9m V

150

mV at 4 mA

LM393

The LM393

LM393 was

DIP-8

LM393N

SOP-8 LM393M

consistsoftwoindependentprecision
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 includelimitcomparators, simple analog to
digital converters; pulse, squarewave and time delay gen­erators; wide range VCO; MOS clock timers; multivibrators
andhighvoltagedigitallogicgates.The
designed to directly interface with TTL and CMOS. When op­eratedfrombothplusandminuspowersupplies,the
willdirectlyinterfacewithMOSlogicwheretheirlow
power drain is a distinct advantage over standard compara­tors.

Advantages

n High precision comparators

n Reduced V
n Eliminates need for dual supplies
n Allows sensing near ground
n Compatible with all forms of logic
n Power drain suitable for battery operation

drift over temperature

OS

Features

n Wide supply

— Voltage range: 2.0V to 36V
— single or dual supplies:

n Very low supply current drain (0.4 mA) — independent

of supply voltage

n Low input biasing current: 25 nA
n Low input offset current:
nMaximumoffsetvoltage:
n Input common-mode voltage range includes ground
n Differential input voltage range equal to the power

supply voltage

nLowoutputsaturationvoltage,:
n Output voltage compatible with TTL, DTL, ECL, MOS

and CMOS logic systems

±

1.0V to±18V

±

±

5nA

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electrical characteristics at specified free-air temperature, Vcc = 4 V (unless otherwise noted)

V

2

LM393

PARAMETER TEST CONDITIONS

V

input offset voltage mV

10

Vcc = 5V to 30V
VIC = V

ICR

min,

25oC
Full range

MIN TYP MAX UNIT

25

9

Vo =1.4V

I

IO

input offset current
I

IB

input bias current
V

1CR

Vo =1.4V nA

25oC
Full range

Vo =1.4V nA

25oC
Full range

25oC

0 to Vcc-1.5 V

550

150

-25 -250

-400

Common-mode input voltage Full range 0 to Vcc-2.0
range**
A

VD

Large-signal differential
voltage amplication

OH

I

Vcc = 15V
Vo =1.4Vto 11.4V

RL15k to Vcc

VOH=5V,VID=1V

25oC

25oC

High-level output current VOH=30V,VID=1V Full range

OL

V

IOL=4mA,VID=1V mV

25oC

Low-level output voltage Full range

OL

I

VOL=1.5V,VID=1

25oC

50 200

0.1 50
1

150 400

700

6

V/m V

nA
u A

m A

Low-level output current
Icc

Supply current Vcc=30V Full range

RL= Vcc=5V

25oC

0.8 1

m A

2.5

*Full range(MIN to MAX),for the LM393 is 0 to 70 .All characteristics are measured with
zero common-mode input voltage unless otherwise speified.
**The voltage at either input or common-mode should not be go negative by more than 0.3V.The upper
end of the common-mode voltage range is Vcc+-1.5V,but either or both inputs can go to 30V without damage

switching characteristics ,Vcc=5V,TA=25
PARAMETER MIN TYP MAX UNIT

Response time

RL connected to 5V 100mV input step with

TEST CONDITIONS

1.3

through 5.1K 5-m V overdrive
CL=15pF see Note1 TTL-level input step

0.3

* CL includes probe and jig capacitance
NOTE1: The response time specified is the interval between the input step function and the instant when
the output crosses 1.4V.

us