NATIONAL SEMICONDUCTOR LMV331 Single Comparator LMV393 Dual Comparator LMV339 Quad Comparator General Purpose, Low Voltage, Tiny Package Comparators
Summary
The LMV331, LMV393, and LMV339 are high-performance, general-purpose comparators designed for space-constrained, low-voltage portable electronics. Optimized for battery power (2.7V–5V), these ICs feature ultra-low supply current and compact SC70-5 packages with bipolar input/output stages for improved signal integrity. This technical summary provides comprehensive specifications and application details necessary for designing circuits in mobile communications, notebooks, and PDAs requiring reliable detection across stringent power budgets.
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LM ingle /LM ual/LM uad eneral P urpose,Low Voltage,Tiny ack
om parators
LMV331 Single LMV393 Dual LMV339 Quad General Purpose, Low Voltage, Tiny Pack Comparators General Description Features The LMV393 and LMV339 are low voltage (2.7-5V) versions (For 5V Supply, Typical Unless Otherwise Noted) of the dual and quad comparators, LM393/339, which are Space Saving SC70-5 Package (2.0 2.1 1.0 mm) specified at 5-30V. The LMV331 is the single version, which
Space Saving SOT23-5 Package (3.00 3.01 x1.43
is available in space saving SC70-5 and SOT23-5 packages.
SC70-5 is approximately half the size of SOT23-5.
Guaranteed 2.7V and 5V Performance
The LMV393 is available in 8-pin SOIC and 8-pin MSOP. The
Industrial Temperature Range −40˚C to +85˚C
LMV339 is available in 14-pin SOIC and 14-pin TSSOP.
Low Supply Current 60µA/Channel
The LMV331/393/339 is the most cost-effective solution
Input Common Mode Voltage Range Includes Ground
where space, low voltage, low power and price are the
Low Output Saturation Voltage m V
primary specification in circuit design for portable consumer products. They offer specifications that meet or exceed the
Applications
familiar LM393/339 at fraction of the supply current.
Mobile Communications
The chips are built with National’s advanced Submicron
Notebooks and PDA’s
Silicon-Gate Bi CMOS process. The LMV331/393/339 have
bipolar input and output stages for improved noise perfor- Battery Powered Electronics mance. General Purpose Portable Device General Purpose Low Voltage Applications
Typical Applications
Squarewave Oscillator
Positive Peak Detector
National Semiconductor Corporation DS100080 www.national.com
Page Summary Contents For NATIONAL SEMICONDUCTOR LMV331 Single Comparator LMV393 Dual Comparator LMV339 Quad Comparator General Purpose, Low Voltage, Tiny Package Comparators
Manual Details
| Brand | National |
|---|---|
| Pages | 21 |
| File Size | 553.25 KB |
| Published | June 01, 2026 |
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Frequently Asked Questions
What voltage range is optimal for low power portable electronics?
The comparators operate in a low voltage range of 2.7V to 5.0V, making them ideal for battery-powered applications.
Are these components suitable for life support systems?
No. National's products are not authorized for use as critical components in life support devices or systems without express written approval.
How does the size compare to previous models like LM393/339?
The available SC70-5 and SOT23-5 packages offer a space-saving design, which is approximately half the size of older counterparts.
What is the general operating temperature range for these chips?
These comparators are rated for an industrial temperature range, spanning from -40˚C to +85˚C.