RoHM LM393MX Technical Note
Summary
These high-performance, general-purpose comparators integrate dual or quad independent signal amplifiers on a single chip. Featuring low power consumption and compatibility with TTL/CMOS logic, they offer reliable operation across wide voltage ranges (2V to 36V) and various temperature grades (-40°C to +70°C). This comprehensive guide provides detailed technical specifications, electrical characteristics, absolute maximum ratings, and pin assignments, making it an essential resource for circuit designers and electronics engineers building demanding commercial and industrial equipment.
Page 1 Text Content
General-purpose Operational Amplifiers / Comparators
NOW SERIES Comparators
LM393MX,LM2903MX,LM339MX,LM2901MX No.11094ECT06
●Description The Universal Standard family LM393 / LM339 / LM2903 / LM2901 monolithic ICs integrate two / four independent comparators on a single chip and feature high gain, low power consumption, and an operating voltage range from 2[V] to 36[V] (single power supply).
NOW SERIES
Dual Quad
LM393 family LM339 family LM2903 family LM2901 family LM393MX LM2903MX LM339MX LM2901MX
●Features 1) Operating temperature range Commercial Grade LM339/393 family: 0[℃] to +70[℃] Extended Industrial Grade LM2903/2901 family: -40[℃] to +85[℃] 2) Open collector output 3) Single / dual power supply compatible 4) Low supply current 0.8[m A] typ.(LM2901/339 family) 0.4[m A] typ.(LM2903/393 family) 5) Low input-bias current: 25[n A] typ. 16) Low input-offset current: 5[n A] typ. 7) Input common-mode voltage range, including ground 8) Differential input voltage range equal to maximum rated supply voltage 9) Low output saturation voltage 10) TTL,MOS,CMOS compatible output
●Pin Assignment
OUTPUT2 OUTPUT3
OUTPUT A V+
OUTPUT1 OUTPUT4
V+ GND
INVERTING
OUTPUT B ＋ － ＋ － ＋
INPUT A
INPUT1 INPUT4
NON-INVERTING INVERTING
INPUT1 INPUT4
INPUT A INPUT B
INPUT2 INPUT3
NON-INVERTING
INPUT B
INPUT2 INPUT3
S.O package14 S.O package8
LM393MX LM339MX
LM2901MX LM2903MX
www.rohm.com 2011.06 - Rev.C
© 2011 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For RoHM LM393MX Technical Note
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 17 |
| File Size | 694.63 KB |
| Published | July 16, 2026 |
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Frequently Asked Questions
What is the single power supply voltage range for these comparators?
They operate within a voltage range from 2V to 36V.
Which product family provides extended industrial temperature grading?
The LM2903 and LM2901 families support an extended temperature range of -40°C to +85°C.
Are these comparators compatible with various digital logic interfaces?
Yes, the output is compatible with TTL, MOS, and CMOS logic types.
Can I use this comparator for life-support or aerospace machinery?
No. The products are not designed for equipment requiring extremely high reliability, such as medical instruments or transportation systems.