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
• Reduced V
OS
Drift Over Temperature
• 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.
