STEK LM393 User Manual

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LM39

3

Description

rate

also

er

D

Features

Low o

utputsaturationvoltage

8

8

1

1

Package

Internal

Blo

c

k Di

gra

m

OUTPUT

A18

V+

INVERTING INPUT A

2AB

7

OUTPUT

B

NON-INVERTING INPUT A

36INVERTING INPUT B

GND

4

5

T

OP VIEW

1

BEIJING ESTEK ELECTRONICSCO.,LTD

The LM393 consists of two independent voltage comparators. These were designed specifically to ope
from a single power supply over a wide range of voltages. Operation from split power supplies is
possible and the low power supply current drain is independent of the magnitude of the pow
supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AN
relationships.

Wide supply voltage range
Low supplycurrent drain independent of supply

voltage.Low input biasing current

SOP-8

Low input offset current
Low input offset voltage
Input common-mode voltage range includes GND
Differentialinput voltage range equal to the power supplyvoltage

Output voltage compatible with TTL, MOS and CMOS

logic

DIP-8

NON-

LM39

3

Electrical Characteristics

at

specified

free-air

temperature

,

Vcc=5V(unless

other

w

ise

noted)

SymbolParamete

r

Testconditions*

V

I

O

Input offset voltage

Vcc = 5 V to 30V,

LM393

Units

mV

min,

Full range

9

nA

V

A

signal differential voltage

amplification

Vo=1.4V to 11.4 V,

25

°С50

200

V/mV

lOHHigh-level output current

VOH=5 V, V

=1V,25°С0.150nA

VOH= 30V, V

I

D

=1V

Full

range

1µAVOLLow-

level output voltage

IOL= 4 mA,

V

I

D

=-1V

25

°С150

400

Full range

700mVlOLLow-

level output current

V

O

L

= 1.5V, V

I

D

=-1V25°С6mAICCSupply

current

RL=

∞

VCC= 5V25°С0.8

1

VCC= 30V

Full range

2.5

mA

Switching Charactristics

Vcc=5V, Т

=25°C

Paramete

r

Testcondition

sMinTypMaxUnits

Response time

RLconnected to 5V

through 5.1 k

Ω

,

100-mV input step

w

ith 5-mV overdrive

1.3

µs

CL=15pF* (See Note 1)

* CLincludes probe and jig capacitance.

Note 1: The response time specified is

the interval bet

w

een the input step function and the instant

w

hen the output crosses 1.4V.

BEIJING ESTEK ELECTRONICSCO.,LTD

2

l

Input offset current Vo=1.4 V

IO

I

Input bias current Vo=1.4 V

IB

V

Common-mode input voltage range**

ICR

Large-

VD

VIC= V

ICR

Vo=1.4 V

Vcc = 15 V,
RL≥ 15 kΩ to

ID

Min Typ Max

25 °С 2 5

25 °С 5 50

Full range 150

25 °С -25 -250

Full range -400

25°С 0 to Vcc-1.5

Full range 0 to Vcc - 2

nA

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

A

TTL-level input step 0.3