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 MAX 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
o Guaranteed 1.8V to 5.5V Performance
o -40C to +125C Automotive Temperature Range
o Low Supply Current (60A/Comparator at
V
DD
= 5.0V)
o Input Common-Mode Voltage Range Includes
Ground
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)
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/
MAX
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 +125C
5 SC70-5
ACD
LMX331AUK-T
-40
C to +125C
5 SOT23-5
ADQR
LMX331HAXK-T
-40
C to +125C
5 SC70-5
ACE
LMX331HAUK-T
-40
C to +125C
5 SOT23-5
ADQS
LMX393AKA-T
-40
C to +125C
8 SOT23-8
AAIF
LMX393AUA
-40
C to +125C
8 MAX
--
LMX393HAKA-T
-40
C to +125C
8 SOT23-8
AAIG
LMX393HAUA
-40
C to +125C
8 MAX
--
LMX339AUD
-40
C to +125C
14 TSSOP
--
LMX339ASD
-40
C to +125C
14 SO
--
LMX339HAUD
-40
C to +125C
14 TSSOP
--
LMX339HASD
-40
C to +125C
14 SO
--
LMX331/LMX393/LMX339
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS--2.7V OPERATION
(V
DD
= 2.7V, V
SS
= 0, V
CM
= 0, R
L
= 5.1k
connected to V
DD
. Typical values are at T
A
= +25
C.) (Note 1)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VDD to VSS)...................................-0.3V to +6V
All Other Pins .................................. (V
SS
- 0.3V) to (V
DD
+ 0.3V)
Continuous Power Dissipation (TA = +70C)
5-Pin SC70 (derate 3.1mW/C above +70C) ..............247mW
5-Pin SOT23 (derate 7.1mW/C above +70C)............571mW
8-Pin SOT23 (derate 8.9mW/C above +70C)............714mW
8-Pin MAX (derate 10.3mW/C above +70C) ...........825mW
14-Pin TSSOP (derate 9.1mW/C above +70C) .........727mW
14-Pin SO (derate 8.3mW/C above +70C).............666.7mW
Operating Temperature Range .........................-40C to +125C
Junction Temperature ......................................................+150C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10s) .................................+300C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Offset Voltage
V
OS
0.2
7
mV
Input Voltage Hysteresis
V
HYST
LMX331H/LMX393H/LMX339H only
2
mV
Input Offset Voltage Average
Temperature Drift
TCV
OS
5
V/C
T
A
= +25C
0.05
250
T
A
= -40C to +85C
400
Input Bias Current
I
B
T
A
= -40C to +125C
400
nA
T
A
= +25C
0.05
50
T
A
= -40C to +85C
150
Input Offset Current
I
OS
T
A
= -40C to +125C
150
nA
-0.1
Input Voltage Range
V
CM
2.0
V
Voltage Gain
A
V
LMX331/LMX393/LMX339 only
50
V/mV
Output Saturation Voltage
V
SAT
I
SINK
1mA
50
mV
Output Sink Current
I
O
V
O
1.5V
5
37
mA
LMX331/LMX331H
50
100
LMX393/LMX393H (both comparators)
70
140
Supply Current (Note 2)
I
S
LMX339/LMX339H (all four comparators)
140
200
A
T
A
= +25C
0.003
T
A
= -40C to +85C
1
Output Leakage Current
T
A
= -40C to +125C
2
A
AC ELECTRICAL CHARACTERISTICS--2.7V OPERATION
(V
DD
= 2.7V, V
SS
= 0, V
CM
= 0, R
L
= 5.1k
connected to V
DD
. Typical values are at T
A
= +25
C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input overdrive = 10mV (Note 3)
500
Propagation Delay
Output High to Low
t
PHL
Input overdrive = 100mV (Note 3)
100
ns
Input overdrive = 10mV (Note 3)
500
Propagation Delay
Output Low to High
t
PLH
Input overdrive = 100mV (Note 3)
100
ns
LMX331/LMX393/LMX339
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
_______________________________________________________________________________________
3
DC ELECTRICAL CHARACTERISTICS--5.0V OPERATION
(V
DD
= 5V, V
SS
= 0, V
CM
= 0, R
L
= 5.1k
connected to V
DD
. Typical values are at T
A
= +25
C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
T
A
= +25C
0.25
7
T
A
= -40C to +85C
9
Input Offset Voltage
V
OS
T
A
= -40C to +125C
9
mV
Input Voltage Hysteresis
LMX331H/LMX393H/LMX339H only
2
mV
Input Offset Voltage Average
Temperature Drift
TCV
OS
5
V/C
T
A
= +25C
0.05
250
T
A
= -40C to +85C
400
Input Bias Current
I
B
T
A
= -40C to +125C
400
nA
T
A
= +25C
0.05
50
T
A
= -40C to +85C
150
Input Offset Current
I
OS
T
A
= -40C to +125C
150
nA
-0.1
Input Voltage Range
V
CM
4.2
V
Voltage Gain
A
V
LMX331/LMX393/LMX339 only
20
50
V/mV
T
A
= +25C
70
400
T
A
= -40C to +85C
700
Output Saturation Voltage
V
SAT
I
SINK
4mA
T
A
= -40C to +125C
700
mV
Output Sink Current
I
O
V
O
1.5V
10
73
mA
T
A
= +25C
60
120
T
A
= -40C to +85C
150
LMX331/LMX331H
T
A
= -40C to +125C
170
T
A
= +25C
100
200
T
A
= -40C to +85C
250
LMX393/LMX393H
(both comparators)
T
A
= -40C to +125C
300
T
A
= +25C
170
300
T
A
= -40C to +85C
350
Supply Current (Note 2)
I
S
LMX339/LMX339H
(all four comparators)
T
A
= -40C to +125C
430
A
T
A
= +25C
0.003
T
A
= -40C to +85C
1
Output Leakage Current
T
A
= -40C to +125C
2
A
AC ELECTRICAL CHARACTERISTICS--5.0V OPERATION
(V
DD
= 5V, V
SS
= 0, V
CM
= 0, R
L
= 5.1k
connected to V
DD
. Typical values are at T
A
= +25
C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input overdrive = 10mV (Note 3)
400
Propagation Delay
Output High to Low
t
PHL
Input overdrive = 100mV (Note 3)
90
ns
Input overdrive = 10mV (Note 3)
600
Propagation Delay
Output Low to High
t
PLH
Input overdrive = 100mV (Note 3)
200
ns
LMX331/LMX393/LMX339
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
4
_______________________________________________________________________________________
DC ELECTRICAL CHARACTERISTICS--1.8V OPERATION
(V
DD
= 1.8V, V
SS
= 0, V
CM
= 0, R
L
= 5.1k
connected to V
DD
. Typical values are at T
A
= +25
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Offset Voltage
V
OS
0.2
5
mV
Input Voltage Hysteresis
LMX331H/LMX393H/LMX339H only
2
mV
Input Offset Voltage Average
Temperature Drift
TCV
OS
5
V/
C
Input Bias Current
I
B
0.05
nA
Input Offset Current
I
OS
0.05
nA
-0.1
Input Voltage Range
V
CM
1
V
Output Saturation Voltage
V
SAT
I
SINK
1mA
35
mV
Power-Supply Rejection Ratio
PSRR
V
DD
= 1.8V to 5.5V
60
70
dB
Output Sink Current
I
O
V
O
1.5V
15
mA
LMX331/LMX331H
40
100
LMX393/LMX393H (both comparators)
65
140
Supply Current (Note 2)
I
S
LMX339/LMX339H (all four comparators)
120
200
A
Output Leakage Current
0.003
A
Note 1: All devices are production tested at +25C. All temperature limits are guaranteed by design.
Note 2: Supply current when output is high.
Note 3: Input overdrive is the overdrive voltage beyond the offset and hysteresis-determined trip points.
AC ELECTRICAL CHARACTERISTICS--1.8V OPERATION
(V
DD
= 1.8V, V
SS
= 0, V
CM
= 0, R
L
= 5.1k
connected to V
DD
. Typical values are at T
A
= +25
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input overdrive = 10mV (Note 3)
500
Propagation Delay
Output High to Low
t
PHL
Input overdrive = 100mV (Note 3)
100
ns
Input overdrive = 10mV (Note 3)
500
Propagation Delay
Output Low to High
t
PLH
Input overdrive = 100mV (Note 3)
100
ns
LMX331/LMX393/LMX339
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
_______________________________________________________________________________________
5
0
30
20
10
40
50
60
70
80
90
100
1
3
2
4
5
6
LMX331
SUPPLY CURRENT vs. SUPPLY VOLTAGE
LMX331 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
A)
V
OUT
= HIGH
T
A
= +125
C
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
0
40
20
100
80
60
160
140
120
180
1
3
2
4
5
6
LMX331
SUPPLY CURRENT vs. SUPPLY VOLTAGE
LMX331 toc02
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
A)
T
A
= +125
C
V
OUT
= LOW
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
-1.0
-0.5
0.5
0
1.0
1.5
-40
0
20
-20
40
60
80
100 120
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
LMX331 toc03
TEMPERATURE (
C)
INPUT OFFSET VOLTAGE (mV)
V
DD
= 2.7V
V
DD
= 5.0V
V
DD
= 1.8V
0
40
20
80
60
120
100
140
OUTPUT LOW VOLTAGE vs. SINK CURRENT
LMX331 toc04
SINK CURRENT (mA)
OUTPUT LOW VOLTAGE (mV)
0
1
2
3
4
V
DD
= 2.7V
V
DD
= 5.0V
V
DD
= 1.8V
60
70
80
90
100
110
120
-40
0
-20
20
40
60
80
100 120
OUTPUT LOW VOLTAGE vs. TEMPERATURE
LMX331 toc05
TEMPERATURE (
C)
OUTPUT LOW VOLTAGE (mV)
I
OUT
= 4mA
0
200
100
400
300
500
600
0
40
60
20
80
100
120
PROPAGATION DELAY vs. CAPACITIVE LOAD
LMX331 toc06
CAPACITIVE LOAD (pF)
PROPAGATION DELAY (ns)
t
PLH
t
PHL
0
25
75
50
125
150
100
175
-40
0
20
-20
40
60
80
100 120
PROPAGATION DELAY vs. TEMPERATURE
LMX331 toc07
TEMPERATURE (
C)
PROPAGATION DELAY (ns)
t
PLH
t
PHL
0
150
100
50
200
250
300
350
400
450
500
0
50
25
75
100
125
150
PROPAGATION DELAY
vs. INPUT OVERDRIVE (t
PLH
)
LMX331 toc08
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (ns)
T
A
= +125
C
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
0
60
40
20
80
100
120
140
160
180
200
0
50
25
75
100
125
150
PROPAGATION DELAY
vs. INPUT OVERDRIVE (t
PHL
)
LMX331 toc09
INPUT OVERDRIVE (mV)
PROPAGATION DELAY (ns)
T
A
= +125
C
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
Typical Operating Characteristics
(V
DD
= 5V, V
SS
= 0, V
CM
= 0, R
L
= 5.1k
, C
L
= 10pF, overdrive = 100mV, T
A
= +25C, unless otherwise noted.)
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