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Design

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LM393B, LM2903B, LM193, LM293, LM293A, LM393, LM393A, LM2903, LM2903V

SLCS005AC – OCTOBER 1979 – REVISED FEBRUARY 2020

LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators

1

1 Features

1

•

NEW LM393B and LM2903B

•

Improved specifications of B-version

–

Maximum rating: up to 38 V

–

ESD rating (HBM): 2k V

–

Low input offset: 0.37 mV

–

Low input bias current: 3.5 nA

–

Low supply-current: 200 µA per comparator

–

Faster response time of 1 µsec

–

Extended temperature range for LM393B

–

Available in tiny 2 x 2mm WSON package

•

B-version is drop-in replacement for LM293,

LM393 and LM2903, A and V versions

•

Common-mode input voltage range includes

ground

•

Differential input voltage range equal to maximum-

rated supply voltage: ±38 V

•

Low output saturation voltage

•

Output compatible with TTL, MOS, and CMOS

2 Applications

•

Vacuum robot

•

Single phase UPS

•

Server PSU

•

Cordless power tool

•

Wireless Infrastructure

•

Applicances

•

Building Automation

•

Factory automation & control

•

Motor drives

•

Infotainment & cluster

3 Description

The LM393B and LM2903B devices are the next

generation versions of the industry-standard LM393

and

LM2903

comparator

family.

These

next

generation

B-version

comparators

provide

outstanding

value

for

cost-sensitive

applications

featuring lower offset voltage, higher supply voltage

capability, lower supply current, lower input bias

current, lower propagation delay, and improved 2 kV

ESD performance and input ruggedness through

dedicated ESD clamps. The LM393B and LM2903B

can drop-in replace the LM293, LM393 and LM2903,

for both "A" and "V" grades.

All devices consist of two independent voltage

comparators that are designed to operate from a

single power supply over a wide range of voltages.

Quiescent current is independent of the supply

voltage, and the outputs can be connected to other

open-collector

outputs

to

achieve

wired-AND

relationships.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LM393B, LM2903B, LM193,

LM293, LM293A, LM393,

LM393A, LM2903,

LM2903V, LM2903AV

SOIC (8)

4.90 mm x 3.91 mm

LM393B, LM2903B, LM293,

LM293A, LM393, LM393A,

LM2903

VSSOP (8)

3.00 mm x 3.00 mm

LM293, LM393, LM393A,

LM2903

PDIP (8)

9.81 mm × 6.35 mm

LM393, LM393A, LM2903

SO (8)

6.20 mm x 5.30 mm

LM393B, LM2903B, LM393,

LM393A, LM2903,

LM2903V, LM2903AV

TSSOP (8)

3.00 mm x 4.40 mm

LM393B

SOT-23 (8)

2.90 mm x 1.60 mm

LM393B, LM2903B

WSON (8)

2.00 mm × 2.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Family Comparison Table

Specification

LM393B

LM2903B

LM393

LM393A

LM2903

LM2903V

LM2903AV

LM193

LM293

LM293A

Units

Supply Votlage

3 to 36

3 to 36

2 to 30

2 to 30

2 to 32

2 to 30

2 to 30

V

Total Supply Current

(5V to 36V max)

0.6 to 0.8

0.6 to 0.8

1 to 2.5

1 to 2.5

1 to 2.5

1 to 2.5

1 to 2.5

mA

Temperature Range

−40 to 85

−40 to 125

0 to 70

−40 to 125

−40 to 125

−55 to 125

−25 to 85

°C

ESD (HBM)

2000

2000

1000

1000

1000

1000

1000

V

Offset Voltage

(Max over temp)

± 4

± 4

± 9

± 4

± 15

± 15

± 4

± 9

± 9

± 4

V

Input Bias Current (typ / max)

3.5 / 25

3.5 / 25

25 / 250

25 / 250

25 / 250

25 / 100

25 / 250

nA

Response Time (typ)

1

1

1.3

1.3

1.3

1.3

1.3

µsec