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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.

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

SLCS005AA – OCTOBER 1979 – REVISED SEPTEMBER 2019

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

1

1 Features

1

•

Single-Supply or Dual Supplies

•

Wide range of supply voltage

–

Maximum rating: 2 V to 36 V

–

Tested to 30 V: non-V devices

–

Tested to 32 V: V-suffix devices

–

Tested to 36 V: B-suffix devices

•

Low supply-current drain independent of supply

voltage: 0.2 mA (typical) per comparator

•

Low input bias current: 15 nA (typical, 'B' device)

•

Low lurrent: 2 nA (Typical)

•

Low input offset voltage: 0.37 mV (typical, 'B'

device)

•

Common-mode input voltage range

Includes Ground

•

Differential input voltage range equal to maximum-

rated supply voltage: ±36 V

•

Low output saturation voltage

•

Output compatible with TTL, MOS, and CMOS

2 Applications

•

Chemical or gas sensor

•

Desktop PC

•

Motorltrol: AC induction

•

Weigh scale

3 Description

The LM393B and LM2903B devices are the next

generation versions of the industry-standard LM393

and

LM2903

comparator

family.

These

next

generation devices provide outstanding value for

cost-sensitive applications, with features including

lower offset voltage, higher supply voltage capability,

lower supply current, lower input bias current, lower

propagation

delay,

and

improved

2kV

ESD

performance with drop-in replacement convenience.

All devices consist of two independent voltage

comparators that are designed to operate from a

single power supply over a wide range of voltages.

Operation from dual supplies also is possible as long

as the difference between the two supplies is within 2

than the input common-mode voltage. Current drain

is independent of the supply voltage. The outputs can

be connected to other open-collector outputs to

achieve wired-AND relationships.

(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LM193, LM293,

LM293A, LM393,

LM393A, LM2903,

LM2903V,

LM2903AV,LM393B,

LM2903B

SOIC (8)

4.90 mm x 3.91 mm

LM293, LM293A,

LM393, LM393A,

LM2903, LM393B,

LM2903B

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

LM393, LM393A,

LM2903, LM2903V,

LM2903AV,LM393B,

LM2903B

TSSOP (8)

3.00 mm x 4.40 mm

LM393

WSON (8)

2.00 mm × 2.00 mm

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

the end of the data sheet.

Simplified Schematic