19-1958; Rev 2; 1/02
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
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.
Features
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
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
Ordering Information
PART
LMX331AXK-T
LMX331AUK-T
LMX331HAXK-T
LMX331HAUK-T
TEMP RANGE
-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
PIN-
PACKAGE
5 SC70-5
5 SOT23-5
5 SC70-5
5 SOT23-5
8 SOT23-8
8 µMAX
8 SOT23-8
8 µMAX
14 TSSOP
14 SO
14 TSSOP
14 SO
TOP
MARK
ACD
ADQR
ACE
ADQS
AAIF
—
AAIG
—
—
—
—
—
Applications
Mobile Communications
Notebooks and PDAs
Automotive Applications
Battery-Powered Electronics
General-Purpose Portable Devices
General-Purpose Low-Voltage Applications
LMX393AKA-T
LMX393AUA
LMX393HAKA-T
LMX393HAUA
LMX339AUD
LMX339ASD
LMX339HAUD
LMX339HASD
Pin Configurations
TOP VIEW
LMX331/LMX331H
OUTB 1
5
V
DD
OUTA
1
2
3
4
B
LMX393/LMX393H
LMX339/LMX339H
14 OUTC
13 OUTD
12 V
SS
IN+
1
OUTA 2
8
7
6
5
V
DD
OUTB
INB-
INB+
INA-
INA+
V
DD
3
INA- 4
INA+ 5
INB- 6
B
C
A
D
V
SS
2
A
11 IND+
10 IND-
9
8
INC+
INC-
IN-
3
4
OUT
V
SS
SOT23/µMAX
SC70/SOT23
INB+ 7
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.
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
LMX331/LMX393/LMX339
ABSOLUTE MAXIMUM RATINGS
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 = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............247mW
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
8-Pin SOT23 (derate 8.9mW/°C above +70°C)............714mW
8-Pin µMAX (derate 10.3mW/°C above +70°C) ...........825mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW
14-Pin SO (derate 8.3mW/°C above +70°C).............666.7mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
DC ELECTRICAL CHARACTERISTICS—2.7V OPERATION
(V
DD
= 2.7V, V
SS
= 0, V
CM
= 0, R
L
= 5.1kΩ connected to V
DD
. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Input Offset Voltage
Input Voltage Hysteresis
Input Offset Voltage Average
Temperature Drift
Input Bias Current
SYMBOL
V
OS
V
HYST
TCV
OS
T
A
= +25°C
I
B
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= +25°C
Input Offset Current
I
OS
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
Input Voltage Range
Voltage Gain
Output Saturation Voltage
Output Sink Current
Supply Current (Note 2)
V
CM
A
V
V
SAT
I
O
I
S
LMX331/LMX393/LMX339 only
I
SINK
≤
1mA
V
O
≤
1.5V
LMX331/LMX331H
LMX393/LMX393H (both comparators)
LMX339/LMX339H (all four comparators)
T
A
= +25°C
Output Leakage Current
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
5
-0.1
2.0
50
50
37
50
70
140
0.003
1
2
µA
100
140
200
µA
±0.05
LMX331H/LMX393H/LMX339H only
CONDITIONS
MIN
TYP
0.2
2
5
±0.05
±250
±400
±400
±50
±150
±150
V
V/mV
mV
mA
nA
nA
MAX
7
UNITS
mV
mV
µV/°C
AC ELECTRICAL CHARACTERISTICS—2.7V OPERATION
(V
DD
= 2.7V, V
SS
= 0, V
CM
= 0, R
L
= 5.1kΩ connected to V
DD
. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Propagation Delay
Output High to Low
Propagation Delay
Output Low to High
SYMBOL
t
PHL
t
PLH
CONDITIONS
Input overdrive = 10mV (Note 3)
Input overdrive = 100mV (Note 3)
Input overdrive = 10mV (Note 3)
Input overdrive = 100mV (Note 3)
MIN
TYP
500
100
500
100
MAX
UNITS
ns
ns
2
_______________________________________________________________________________________
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
DC ELECTRICAL CHARACTERISTICS—5.0V OPERATION
(V
DD
= 5V, V
SS
= 0, V
CM
= 0, R
L
= 5.1kΩ connected to V
DD
. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Input Offset Voltage
Input Voltage Hysteresis
Input Offset Voltage Average
Temperature Drift
Input Bias Current
TCV
OS
T
A
= +25°C
I
B
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= +25°C
Input Offset Current
I
OS
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
Input Voltage Range
Voltage Gain
Output Saturation Voltage
Output Sink Current
V
CM
A
V
V
SAT
I
O
LMX331/LMX393/LMX339 only
T
A
= +25°C
I
SINK
≤
4mA
V
O
≤
1.5V
T
A
= +25°C
LMX331/LMX331H
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
Supply Current (Note 2)
I
S
LMX393/LMX393H
(both comparators)
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
LMX339/LMX339H
(all four comparators)
T
A
= +25°C
Output Leakage Current
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
T
A
= +25°C
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
0.003
1
2
µA
170
100
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
10
73
60
120
150
170
200
250
300
300
350
430
µA
20
-0.1
4.2
50
70
400
700
700
mA
mV
±0.05
SYMBOL
T
A
= +25°C
V
OS
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
LMX331H/LMX393H/LMX339H only
2
5
±0.05
±250
±400
±400
±50
±150
±150
V
V/mV
nA
nA
CONDITIONS
MIN
TYP
0.25
MAX
7
9
9
mV
µV/°C
mV
UNITS
LMX331/LMX393/LMX339
AC ELECTRICAL CHARACTERISTICS—5.0V OPERATION
(V
DD
= 5V, V
SS
= 0, V
CM
= 0, R
L
= 5.1kΩ connected to V
DD
. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Propagation Delay
Output High to Low
Propagation Delay
Output Low to High
SYMBOL
t
PHL
t
PLH
CONDITIONS
Input overdrive = 10mV (Note 3)
Input overdrive = 100mV (Note 3)
Input overdrive = 10mV (Note 3)
Input overdrive = 100mV (Note 3)
MIN
TYP
400
90
600
200
MAX
UNITS
ns
ns
_______________________________________________________________________________________
3
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
LMX331/LMX393/LMX339
DC ELECTRICAL CHARACTERISTICS—1.8V OPERATION
(V
DD
= 1.8V, V
SS
= 0, V
CM
= 0, R
L
= 5.1kΩ connected to V
DD
. Typical values are at T
A
= +25°C.)
PARAMETER
Input Offset Voltage
Input Voltage Hysteresis
Input Offset Voltage Average
Temperature Drift
Input Bias Current
Input Offset Current
Input Voltage Range
Output Saturation Voltage
Power-Supply Rejection Ratio
Output Sink Current
Supply Current (Note 2)
Output Leakage Current
TCV
OS
I
B
I
OS
V
CM
V
SAT
PSRR
I
O
I
S
I
SINK
≤
1mA
V
DD
= 1.8V to 5.5V
V
O
≤
1.5V
LMX331/LMX331H
LMX393/LMX393H (both comparators)
LMX339/LMX339H (all four comparators)
60
SYMBOL
V
OS
LMX331H/LMX393H/LMX339H only
CONDITIONS
MIN
TYP
0.2
2
5
0.05
0.05
-0.1
1
35
70
15
40
65
120
0.003
100
140
200
µA
µA
MAX
5
UNITS
mV
mV
µV/°C
nA
nA
V
mV
dB
mA
AC ELECTRICAL CHARACTERISTICS—1.8V OPERATION
(V
DD
= 1.8V, V
SS
= 0, V
CM
= 0, R
L
= 5.1kΩ connected to V
DD
. Typical values are at T
A
= +25°C.)
PARAMETER
Propagation Delay
Output High to Low
Propagation Delay
Output Low to High
SYMBOL
t
PHL
t
PLH
CONDITIONS
Input overdrive = 10mV (Note 3)
Input overdrive = 100mV (Note 3)
Input overdrive = 10mV (Note 3)
Input overdrive = 100mV (Note 3)
MIN
TYP
500
100
500
100
MAX
UNITS
ns
ns
Note 1:
All devices are production tested at +25°C. 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.
4
_______________________________________________________________________________________
General-Purpose, Low-Voltage,
Single/Dual/Quad, Tiny-Pack Comparators
Typical Operating Characteristics
(V
DD
= 5V, V
SS
= 0, V
CM
= 0, R
L
= 5.1kΩ, C
L
= 10pF, overdrive = 100mV, T
A
= +25°C, unless otherwise noted.)
LMX331
SUPPLY CURRENT vs. SUPPLY VOLTAGE
LMX331 toc01
LMX331/LMX393/LMX339
LMX331
SUPPLY CURRENT vs. SUPPLY VOLTAGE
160
SUPPLY CURRENT (µA)
140
120
100
80
60
40
20
0
V
OUT
= LOW
1
2
3
4
5
6
T
A
= +25°C
T
A
= -40°C
T
A
= +125°C
T
A
= +85°C
LMX331 toc02
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
LMX331 toc03
100
90
80
SUPPLY CURRENT (µA)
70
60
50
40
30
20
10
0
1
2
3
4
5
6
SUPPLY VOLTAGE (V)
V
OUT
= HIGH
T
A
= +25°C
T
A
= -40°C
T
A
= +125°C
T
A
= +85°C
180
1.5
INPUT OFFSET VOLTAGE (mV)
1.0
V
DD
= 5.0V
0.5
0
V
DD
= 2.7V
-0.5
V
DD
= 1.8V
-1.0
-40
-20
0
20
40
60
80
100 120
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
OUTPUT LOW VOLTAGE vs. SINK CURRENT
LMX331 toc04
OUTPUT LOW VOLTAGE vs. TEMPERATURE
I
OUT
= 4mA
OUTPUT LOW VOLTAGE (mV)
110
100
90
80
70
60
LMX331 toc05
PROPAGATION DELAY vs. CAPACITIVE LOAD
LMX331 toc06
140
120
OUTPUT LOW VOLTAGE (mV)
100
80
V
DD
= 1.8V
60
40
20
0
0
1
2
3
SINK CURRENT (mA)
4
V
DD
= 5.0V
V
DD
= 2.7V
120
600
500
PROPAGATION DELAY (ns)
400
300
200
t
PHL
100
0
t
PLH
-40
-20
0
20
40
60
80
100 120
0
20
40
60
80
100
120
TEMPERATURE (°C)
CAPACITIVE LOAD (pF)
PROPAGATION DELAY vs. TEMPERATURE
LMX331 toc07
PROPAGATION DELAY
vs. INPUT OVERDRIVE (t
PLH
)
LMX331 toc08
450
PROPAGATION DELAY (ns)
400
350
300
250
200
150
100
T
A
= +85°C
T
A
= +125°C
T
A
= +25°C
T
A
= -40°C
180
PROPAGATION DELAY (ns)
160
140
120
100
80
60
40
20
0
T
A
= +85°C
T
A
= +125°C
T
A
= +25°C
T
A
= -40°C
150
PROPAGATION DELAY (ns)
125
100
75
t
PHL
50
25
0
-40
-20
0
20
40
60
80
t
PLH
50
0
100 120
0
25
50
75
100
125
150
TEMPERATURE (°C)
INPUT OVERDRIVE (mV)
0
25
50
75
100
125
150
INPUT OVERDRIVE (mV)
_______________________________________________________________________________________
LMX331 toc09
175
500
PROPAGATION DELAY
vs. INPUT OVERDRIVE (t
PHL
)
200
5
