Rainbow Electronics LMX339 User Manual
General description, Applications, Features

General Description
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.
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.
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.
Applications
Mobile Communications
Notebooks and PDAs
Automotive Applications
Battery-Powered Electronics
General-Purpose Portable Devices
General-Purpose Low-Voltage Applications
Features
♦ 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
♦ 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)
LMX331/LMX393/LMX339
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
________________________________________________________________ Maxim Integrated Products
1
TOP VIEW
14
13
12
11
10
9
8
1
2
3
4
5
6
7
OUTC
OUTD
V
SS
IND+
INA-
V
DD
OUTA
OUTB
IND-
INC+
INC-
INB+
INB-
INA+
TSSOP/SO
V
SS
OUT
IN-
1
5
V
DD
IN+
SC70/SOT23
2
3
4
LMX331/LMX331H
1
2
3
4
8
7
6
5
V
DD
OUTB
INB-
INB+
V
SS
INA+
INA-
OUTA
SOT23/
µMAX
LMX393/LMX393H
LMX339/LMX339H
A
D
B
C
A
B
Pin Configurations
19-1958; Rev 2; 1/02
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.
Ordering Information
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
LMX331AXK-T
-40
°C to +125°C
5 SC70-5
ACD
LMX331AUK-T
-40
°C to +125°C
5 SOT23-5
ADQR
LMX331HAXK-T
-40
°C to +125°C
5 SC70-5
ACE
LMX331HAUK-T
-40
°C to +125°C
5 SOT23-5
ADQS
LMX393AKA-T
-40
°C to +125°C
8 SOT23-8
AAIF
LMX393AUA
-40
°C to +125°C
8 µMAX
—
LMX393HAKA-T
-40
°C to +125°C
8 SOT23-8
AAIG
LMX393HAUA
-40
°C to +125°C
8 µMAX
—
LMX339AUD
-40
°C to +125°C
14 TSSOP
—
LMX339ASD
-40
°C to +125°C
14 SO
—
LMX339HAUD
-40
°C to +125°C
14 TSSOP
—
LMX339HASD
-40
°C to +125°C
14 SO
—