19-1958; Rev 2; 1/02
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.
o Guaranteed 1.8V to 5.5V Performance
o -40°C to +125°C Automotive Temperature Range
o Low Supply Current (60µA/Comparator at
V
DD
= 5.0V)
o 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.
o No Phase Reversal for Overdriven Inputs
o Low Output Saturation Voltage (100mV)
o Internal 2mV Hysteresis
(LMX331H/LMX393H/LMX339H)
o 5-Pin SC70 Space-Saving Package
✕
✕
(2.0mm 2.1mm 1.0mm)
(LMX331/LMX331H)
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.
Ordering Information
PIN-
TOP
PART
TEMP RANGE
PACKAGE MARK
LMX331AXK-T
LMX331AUK-T
LMX331HAXK-T
LMX331HAUK-T
LMX393AKA-T
LMX393AUA
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
5 SC70-5
5 SOT23-5
5 SC70-5
5 SOT23-5
8 SOT23-8
8 µMAX
ACD
ADQR
ACE
ADQS
AAIF
—
Applications
Mobile Communications
LMX393HAKA-T
LMX393HAUA
LMX339AUD
8 SOT23-8
8 µMAX
AAIG
—
Notebooks and PDAs
Automotive Applications
14 TSSOP
14 SO
—
Battery-Powered Electronics
LMX339ASD
—
General-Purpose Portable Devices
General-Purpose Low-Voltage Applications
LMX339HAUD
LMX339HASD
14 TSSOP
14 SO
—
—
Pin Configurations
TOP VIEW
LMX339/LMX339H
OUTB
OUTC
OUTD
1
14
13
12
LMX331/LMX331H
IN+
1
2
3
5
4
V
DD
OUTA
2
3
4
5
6
7
LMX393/LMX393H
1
2
3
4
8
7
6
5
OUTA
INA-
V
DD
V
V
SS
DD
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.