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LM193-N, LM2903-N, LM293-N, LM393-N

SNOSBJ6F – OCTOBER 1999 – REVISED DECEMBER 2014

LMx93-N, LM2903-N Low-Power, Low-Offset Voltage, Dual Comparators

1 Features

3 Description

The LM193-N series consists of two independent

1

•

Wide Supply

precision voltage comparators with an offset voltage

–

Voltage Range: 2.0 V to 36 V

specification as low as 2.0 mV max for two

–

Single or Dual Supplies: ±1.0 V to ±18 V

comparators which were designed specifically to

operate from a single power supply over a wide range

•

Very Low Supply Current Drain (0.4 mA) —

of voltages. Operation from split power supplies is

Independent of Supply Voltage

also possible and the low power supply current drain

•

Low Input Biasing Current: 25 nA

is independent of the magnitude of the power supply

•

Low Input Offset Current: ±5 nA

voltage. These comparators also have a unique

characteristic in that the input common-mode voltage

•

Maximum Offset voltage: ±3 mV

range includes ground, even though operated from a

•

Input Common-Mode Voltage Range Includes

single power supply voltage.

Ground

Application areas include limit comparators, simple

•

Differential Input Voltage Range Equal to the

analog to digital converters; pulse, squarewave and

Power Supply Voltage

time delay generators; wide range VCO; MOS clock

•

Low Output Saturation Voltage: 250 mV at 4 mA

timers; multivibrators and high voltage digital logic

•

Output Voltage Compatible with TTL, DTL, ECL,

gates. The LM193-N series was designed to directly

interface with TTL and CMOS. When operated from

MOS and CMOS logic systems

both plus and minus power supplies, the LM19-N

•

Available in the 8-Bump (12 mil) DSBGA Package

series will directly interface with MOS logic where

•

See AN-1112 (SNVA009) for DSBGA

their low power drain is a distinct advantage over

Considerations

standard comparators.

•

Advantages

The LM393 and LM2903 parts are available in TI’s

–

High Precision Comparators

innovative thin DSBGA package with 8 (12 mil) large

bumps.

–

–

Eliminates Need for Dual Supplies

Device Information(1)

–

Allows Sensing Near Ground

PART NUMBER

PACKAGE

BODY SIZE (NOM)

–

Compatible with All Forms of Logic

LM193-N

TO-99 (8)

9.08 mm x 9.08 mm

–

Power Drain Suitable for Battery Operation

LM293-N

LM393-N

SOIC (8)

4.90 mm x 3.91 mm

2 Applications

LM2903-N

•

Battery powered applications

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

the end of the datasheet.

•

Industrial applications

4 Simplified Schematic

1

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.