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

1 Features

• 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

PART NUMBER

PACKAGE(1)

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.

www.ti.com

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

SLCS005AD – OCTOBER 1979 – REVISED OCTOBER 2020

Copyright © 2020 Texas Instruments Incorporated

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Product Folder Links: LM393B LM2903B LM193 LM293 LM293A LM393 LM393A LM2903 LM2903V

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

SLCS005AD – OCTOBER 1979 – REVISED OCTOBER 2020

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.