LM331A, LM393A, LM339A
36 V Low Power Comparators
Features
Description
Wide Single-supply Voltage Range or Dual
Supplies: +2.5 V to +36 V or ±1.25 V to ±18 V
Very Low Supply Current (150 μA/ch)
Low Input Bias Current: 1 nA maximum
Low Offset Voltage: ±6.0 mV maximum
Input Common-mode Voltage Range Includes
Ground
Internal Differential Input Voltage Range Equal to
The Supply Voltage
Low Output Saturation
−40°C to 125°C Operation Range
ESD Rating: HBM 4 kV, CDM 2 kV
The devices in this series consist of single/ dual/ quad
independent single or dual supply voltage
comparators on a single monolithic substrate. The
common mode input voltage range includes ground
even when operated from a single supply, and the low
power supply current drain makes these comparators
suitable for battery operation. These types were
designed to directly interface with TTL and CMOS,
Current drain is independent of the supply voltage.
The outputs can be connected to other open-collector
outputs to achieve wired-AND relationships.
All devices are specified for the temperature range of
–40°C to 125°C.
Applications
High-speed Line or Digital Line Receivers
High Speed Sampling Circuits
Peak and Zero-crossing Detectors
Threshold Detectors/Discriminators
Sensing at Ground or Supply Line
Typical Application Circuit
VDD
Ro
R1
Vo
R2
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RD
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Table of Contents
Features ....................................................................................................................................................... 1
Applications ................................................................................................................................................. 1
Description ................................................................................................................................................... 1
Typical Application Circuit .......................................................................................................................... 1
Revision History .......................................................................................................................................... 3
Pin Configuration ......................................................................................................................................... 4
Specifications .............................................................................................................................................. 5
Absolute Maximum Ratings (1) ................................................................................................................. 5
ESD, Electrostatic Discharge Protection .................................................................................................. 5
Thermal Information ................................................................................................................................ 5
Electrical Characteristics ......................................................................................................................... 6
Typical Performance Characteristics ....................................................................................................... 7
Application and Implementation ................................................................................................................. 8
Application Information............................................................................................................................ 8
Typical Application .................................................................................................................................. 9
Tape and Reel Information ........................................................................................................................ 10
Package Outline Dimensions ..................................................................................................................... 11
SOT23-5 ................................................................................................................................................ 11
SOP8.................................................................................................................................................... 12
TSSOP8 ............................................................................................................................................... 13
DFN2X2-8 ............................................................................................................................................ 14
SOP14.................................................................................................................................................. 15
TSSOP14 ............................................................................................................................................. 16
Order Information ...................................................................................................................................... 17
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Revision History
Date
Revision
2022-05-05
Rev.A.0
Notes
Update new document format.
Update package outline dimensions with 3PEAK new POD format, no change
on the product.
Combine LM331A, LM393A, LM339A to one datasheet.
Updated IOS, IB, IDIFF spec:
IB : add max limit value 1nA at 25 °C, add max limit value 10nA at −40°C to
125°C
IOS : add max limit value 1nA at 25 °C, add max limit value 10nA at −40°C
to 125°C
IOS : add typical value 50nA at 25 °C
2023-05-29
Rev.A.1
The following updates are all about the new datasheet formats or typo, the
actual product remains unchanged.
Updated symbol of Figure 3 in Typical Performance Characteristics.
Updated address of web site.
Updated tape and reel information.
Updated DFN2X2-8 package outline dimension.
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3 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Pin Configuration
LM393A, DFN Package
The themal pad of DFN package is recommended to be left float or connected to -Vs
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Specifications
Absolute Maximum Ratings (1)
Parameter
Min
+
Max
Unit
42
V
V − 0.3
V + 0.3
V
−20
+20
mA
−20
+20
mA
−
Supply Voltage: V − V
−
Input Voltage
Input Current: +IN, –IN
(2)
Output Current: OUT
+
Output Short-Circuit Duration (3)
Infinite
Current at Supply Pins
−60
+60
mA
150
°C
TJ
Maximum Junction Temperature
TA
Operating Temperature Range
−40
125
°C
Storage Temperature Range
−65
150
°C
260
°C
TSTG
TL
Lead Temperature (Soldering 10 sec)
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure
to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.
(2) The inputs are protected by ESD protection diodes to each power supply. If the input extends more than 500 mV beyond
the power supply, the input current should be limited to less than 10 mA.
(3) A heat sink may be required to keep the junction temperature below the absolute maximum. This depends on the power
supply voltage and how many amplifiers are shorted. Thermal resistance varies with the amount of PC board metal
connected to the package. The specified values are for short traces connected to the leads.
ESD, Electrostatic Discharge Protection
Symbol
HBM
CDM
Parameter
Condition
Human Body Model ESD
Minimum Level
Unit
(1)
4
kV
(2)
2
kV
ANSI/ESDA/JEDEC JS-001
Charged Device Model ESD
ANSI/ESDA/JEDEC JS-002
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.
Thermal Information
Package Type
θJA
θJC
Unit
SOT23-5
250
81
°C/W
SOP8
158
43
°C/W
TSSOP8
191
44
°C/W
DFN2X2-8
100
60
°C/W
SOP14
97
47
°C/W
TSSOP14
108
43
°C/W
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Electrical Characteristics
All test condition is VCC = 5 V, RPU = 10 kΩ, CL = 15 pF, TA = 25°C, unless otherwise noted.
Symbol
Parameter
Conditions
Min
Max
Unit
36
V
±0.6
+6
mV
0.1
1
nA
1
10
nA
0.1
1
nA
VDM = 0 V, VCM = 0 V, TA = −40°C to
125°C
1
10
nA
50
VCC
Supply Voltage
TA = −40°C to 125°C
2.5
VOS
Input Offset Voltage
VCC = 5 V to 30 V, VCM = 0V, VO = 1.4
V, TA = −40°C to 125°C
−6
VDM = 0 V, VCM = 0 V
IB
Input Bias Current
(1)
VDM = 0 V, VCM = 0 V, TA = −40°C to
125°C
VDM = 0 V, VCM = 0 V
(1)
IOS
Input Offset Current
IDiff
Input Differential Current
VCC = 36 V, VDM = 36 V
CIN
Input Capacitance
TA = 25°C
VCM
Common-mode Input
Voltage Range
AVD
Large-signal Differentialvoltage Amplification
Differential
VCC = 15 V, VO = 1.4 V to 11.4 V,
RL ≥ 15 kΩ to VCC
nA
2.5
Common Mode
TA = −40°C to 125°C
Typ
pF
5
0
VCC − 1.5
V
0
VCC − 2
V
50
VOH = 5 V, VID = 1 V
400
25
V/mV
200
nA
7
μA
400
mV
500
mV
IOH
High-level Output Current
VOL
Low-Level Output Voltage
IOL = 4 mA, VID = −1 V, TA = −40°C to
125°C
IOL
Low-Level Output Current
VOL = 1.5 V, VID = −1 V
IQ
Quiescent Current per
Comparator
VCC = 5 V
150
300
μA
VCC = 36 V
150
300
μA
VCC = 36 V, VOH = 36 V, VID = 1 V, TA =
−40°C to 125°C
IOL = 4 mA, VID = −1 V
tRT
Response Time
RL connected to 5 V
through 5.1 kΩ, CL
= 15 pF
250
10
mA
100-mV input
step with 5-mV
overdrive
2
TTL-level input
step
0.5
μs
(1) Provided by bench test and design simulation
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Typical Performance Characteristics
All test conditions: VS = 5 V, VCM = 0 V, RL = Open, unless otherwise noted.
6
210
5
180
4
150
3
Vout(V)
Supply Current(uA)
240
120
90
1
-40°C
60
25°C
30
2
Vov=5mV
Vov=20mV
Vov=100mV
0
125°C
-1
0
3
8
13
18
23
0
28
1
2
3
4
5
Time (us)
Supply Voltage (V)
Figure 1. Supply Current vs. Supply Voltage
(Dual Channel)
Figure 2. Response Time for Various Input Overdrives:
Positive Transition
6
6
5
5
Vov=5mV
4
Vov=20mV
Vov=100mV
Vdrop(V)
3
Vout(V)
4
2
3
2
1
T=-40°C
T=25°C
T=125°C
1
0
-1
0
0
1
2
3
4
5
0
Time (us)
20
30
40
Isink (mA)
Figure 3. Response Time for Various Input
Overdrives: Negative Transition
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Figure 4 Negative Output Swing vs. Sink Current
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Application and Implementation
NOTE
Information in the following applications sections is not part of the 3PEAK’s component specification and
3PEAK does not warrant its accuracy or completeness. 3PEAK’s customers are responsible for determining
suitability of components for their purposes. Customers should validate and test their design implementation
to confirm system functionality.
Application Information
Power Supply Layout and Bypass
The LM331A/393A/339A family’s power supply pin should have a local bypass capacitor (i.e., 0.01 μF to 0.1 μF)
within 2mm for good high frequency performance. It can also use a bulk capacitor (i.e., 1 μF or larger) within
100mm to provide large, slow currents. This bulk capacitor can be shared with other analog parts.
Good ground layout improves performance by decreasing the amount of stray capacitance and noise at the
comparator’s inputs and outputs. To decrease stray capacitance, minimize PCB lengths and resistor leads, and
place external components as close to the comparator’ pins as possible.
Inputs
The electrostatic discharge (ESD) protection input structure of two back-to-back diodes and 1kΩ series resistors
are used to limit the differential input voltage applied to the precision input of the comparator by clamping input
voltages that exceed supply voltages, as shown in Figure 5. Large voltage exceeding the supply voltage should
be avoided to prevent damage to the input stage.
1K Ω
+In
1K Ω
Core
-In
Chip
Figure 5 Equivalent Input Structure
Operation Outside of the Common Input Voltage Range
The following is a list of input voltage situation and their outcomes:
1. When both IN- and IN+ are both within the common-mode range:
1)
If IN- is higher than IN+ and the offset voltage, the output is low and the output MOSFET is sinking
Current.
2)
If IN- is lower than IN+ and the offset voltage, the output is high impedance.
2. When IN- is higher than common-mode and IN+ is within common-mode, the output is low and the output
MOSFET is sinking current.
3. When IN+ is higher than common-mode and IN- is within common-mode, the output is high impedance.
4. When IN- and IN+ are both higher than common-mode, the output is in uncertain state.
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Typical Application
IR Receiver
The device is an ideal candidate to be used as an infrared receiver shown in Figure 6. The infrared photo diode
creates a current relative to the amount of infrared light present. The current creates a voltage across RD. When
this voltage level cross the voltage applied by the voltage divider to the inverting input, the output transitions.
Optional Ro provides additional hysteresis for noise immunity.
VDD
Ro
R1
Vo
R2
RD
Figure 6. IR Receiver
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Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Tape and Reel Information
Order Number
Package
D1
(mm)
W1
(mm)
A0
(mm)
B0
(mm)
K0
(mm)
P0
(mm)
W0
(mm)
Pin1
Quadrant
LM331A-S5TR
SOT23-5
179.0
13.1
3.3
3.25
1.4
4.0
8.0
Q3
LM331AU-S5TR
SOT23-5
179.0
13.1
3.3
3.25
1.4
4.0
8.0
Q3
LM331AU2-S5TR
SOT23-5
179.0
13.1
3.3
3.25
1.4
4.0
8.0
Q3
LM393A-SR
SOP8
330.0
17.6
6.5
5.4
2.0
8.0
12.0
Q1
LM393A-DFGR
DFN2X2-8
180.0
12.0
2.2
2.2
1.0
4.0
8.0
Q2
LM393A-TSR
TSSOP8
330.0
17.6
6.8
3.3
1.8
8.0
12.0
Q1
LM339A-SR
SOP14
330.0
22.0
6.5
9.2
2.0
8.0
16.0
Q1
LM339A-TR
TSSOP14
330.0
17.6
6.8
5.5
1.6
8.0
12.0
Q1
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10 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Package Outline Dimensions
SOT23-5
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11 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
SOP8
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12 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
TSSOP8
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13 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
DFN2X2-8
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14 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
SOP14
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15 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
TSSOP14
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16 / 17
Rev.A.1
LM331A, LM393A, LM339A
36 V Low Power Comparators
Order Information
Order Number
Operating Temperature
Range
Package
Marking
Information
MSL
Transport Media,
Quantity
Eco Plan
LM331A-S5TR
−40 to 125°C
SOT23-5
31A
3
Tape and Reel, 3000
Green
LM331AU-S5TR
−40 to 125°C
SOT23-5
CA4
3
Tape and Reel, 3000
Green
LM331AU2-S5TR
−40 to 125°C
SOT23-5
31V
3
Tape and Reel, 3000
Green
LM393A-SR
−40 to 125°C
SOP8
393A
3
Tape and Reel, 4000
Green
LM393A-DFGR
−40 to 125°C
DFN2X2-8
93A
3
Tape and Reel, 3000
Green
LM393A-TSR
−40 to 125°C
TSSOP8
393A
3
Tape and Reel, 3000
Green
LM339A-SR
−40 to 125°C
SOP14
LM339
3
Tape and Reel, 2500
Green
LM339A-TR
−40 to 125°C
TSSOP14
LM339
3
Tape and Reel, 3000
Green
Green: 3PEAK defines "Green" to mean RoHS compatible and free of halogen substances.
3PEAK and the 3PEAK logo are registered trademarks of 3PEAK INCORPORATED. All other trademarks are the
property of their respective owners.
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