19-1958; Rev 4; 5/11
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
General Description
Features
The LMX331/LMX393/LMX339 single/dual/quad com-
parators are drop-in, pin-for-pin-compatible replace-
ments for the LMV331/LMV393/LMV339. The LMX331H/
LMX393H/LMX339H offer the performance of the
LMX331/LMX393/LMX339 with the added benefit of inter-
nal hysteresis to provide noise immunity, preventing out-
put oscillations even with slow-moving input signals.
♦ Guaranteed 1.8V to 5.5V Performance
♦ -40°C to +125°C Automotive Temperature Range
♦ Low Supply Current (60µA/Comparator at
V
DD
= 5.0V)
♦ Input Common-Mode Voltage Range Includes
Ground
Advantages of the LMX331/LMX393/LMX339 series
include low supply voltage, small package, and low cost.
The LMX331 is available in both 5-pin SC70 and SOT23
packages, LMX393 is available in both 8-pin µMAX® and
smaller SOT23 packages, and the LMX339 is available in
14-pin TSSOP and SO packages. They are manufac-
tured using advanced submicron CMOS technology.
Designed with the most modern techniques, the
LMX331/LMX393/LMX339 achieve superior performance
over BiCMOS or bipolar versions on the market.
♦ No Phase Reversal for Overdriven Inputs
♦ Low Output Saturation Voltage (100mV)
♦ Internal 2mV Hysteresis
(LMX331H/LMX393H/LMX339H)
♦ 5-Pin SC70 Space-Saving Package
✕
✕
(2.0mm 2.1mm 1.0mm)
(LMX331/LMX331H)
Ordering Information
The LMX331/LMX393/LMX339 offer performance
advantages such as wider supply voltage range, wider
operating temperature range, better CMRR and PSRR,
improved response time characteristics, reduced off-
set, reduced output saturation voltage, reduced input
bias current, and improved RF immunity.
PIN-
TOP
PART
TEMP RANGE
PACKAGE MARK
LMX331AXK+T
LMX331AUK+T
LMX331HAXK+T
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
5 SC70
ACD
ADQR
ACE
ADQS
AAIF
—
5 SOT23
5 SC70
µMAX is a registered trademark of Maxim Integrated Products, Inc.
LMX331HAUK+T -40°C to +125°C
5 SOT23
8 SOT23
8 µMAX
8 SOT23
8 µMAX
14 TSSOP
14 SO
LMX393AKA+T
-40°C to +125°C
-40°C to +125°C
Applications
Mobile Communications
LMX393AUA+T
LMX393HAKA+T -40°C to +125°C
LMX393HAUA+T -40°C to +125°C
AAIG
—
Notebooks and PDAs
Automotive Applications
LMX339AUD+T
-40°C to +125°C
-40°C to +125°C
—
Battery-Powered Electronics
LMX339ASD+T
—
General-Purpose Portable Devices
General-Purpose Low-Voltage Applications
LMX339HAUD+T -40°C to +125°C
LMX339HASD+T -40°C to +125°C
14 TSSOP
14 SO
—
—
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Pin Configurations
+
TOP VIEW
+
LMX339/LMX339H
OUTB
OUTA
OUTC
OUTD
1
14
13
12
LMX331/LMX331H
IN+
1
2
3
5
4
V
DD
+
2
3
4
5
6
7
LMX393/LMX393H
1
2
3
4
8
7
6
5
OUTA
INA-
V
DD
V
DD
V
SS
OUTB
INB-
V
SS
A
INA-
INA+
INB-
INB+
11 IND+
INA+
A
B
D
C
B
IND-
10
V
SS
INB+
IN-
OUT
INC+
INC-
9
8
SOT23/μMAX
SC70/SOT23
TSSOP/SO
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
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