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

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SNOSBJ6E – OCTOBER 1999 – REVISED MARCH 2013

LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators

Check for Samples: LM193-N, LM2903-N, LM293-N, LM393-N

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FEATURES

DESCRIPTION

The LM193 series consists of two independent

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•

Wide Supply

precision voltage comparators with an offset voltage

–

Voltage Range: 2.0V to 36V

specification as low as 2.0 mV max for two

–

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

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

timers; multivibrators and high voltage digital logic

mA

gates. The LM193 series was designed to directly

interface with TTL and CMOS. When operated from

•

Output Voltage Compatible with TTL, DTL,

both plus and minus power supplies, the LM193

ECL, MOS and CMOS logic systems

series will directly interface with MOS logic where

•

Available in the 8-Bump (12 mil) DSBGA

their low power drain is a distinct advantage over

Package

standard comparators.

•

See AN-1112 (SNVA009) for DSBGA

The LM393 and LM2903 parts are available in TI’s

Considerations

innovative thin DSBGA package with 8 (12 mil) large

bumps.

ADVANTAGES

•

High Precision Comparators

•

•

Eliminates Need for Dual Supplies

•

Allows Sensing Near Ground

•

Compatible with All Forms of Logic

•

Power Drain Suitable for Battery Operation

Figure 1. Squarewave Oscillator

Figure 2. Non-Inverting Comparator with

Hysteresis

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PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.