© Semiconductor Components Industries, LLC, 2012
April, 2012 − Rev. 21
1Publication Order Number:
LM393/D
LM393, LM293, LM2903,
LM2903V, NCV2903,
NCV2903V
Low Offset Voltage
Dual Comparators
The LM393 series are dual independent precision voltage
comparators capable of single or split supply operation. These devices
are designed to permit a common mode range−to−ground level with
single supply operation. Input offset voltage specifications as low as
2.0 mV make this device an excellent selection for many applications
in consumer, automotive, and industrial electronics.
Features
•Wide Single−Supply Range: 2.0 Vdc to 36 Vdc
•Split−Supply Range: ±1.0 Vdc to ±18 Vdc
•Very Low Current Drain Independent of Supply Voltage: 0.4 mA
•Low Input Bias Current: 25 nA
•Low Input Offset Current: 5.0 nA
•Low Input Offset Voltage: 5.0 mV (max) LM293/393
•Input Common Mode Range to Ground Level
•Differential Input Voltage Range Equal to Power Supply Voltage
•Output Voltage Compatible with DTL, ECL, TTL, MOS, and CMOS
Logic Levels
•ESD Clamps on the Inputs Increase the Ruggedness of the Device
without Affecting Performance
•NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
•These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
VCC + Input - Input Output
Q3 R4 Q4
Q5
R2
Q6 Q14
Q16
Q15
Q12
Q11
Q10
Q9
Q8
Q2
Q1
F1
2.0 k
2.1 k
R1
4.6 k
Figure 1. Representative Schematic Diagram
(Diagram shown is for 1 comparator)
See detailed marking information and ordering and shipping
information on pages 6 and 7 of this data sheet.
DEVICE MARKING AND ORDERING
INFORMATION
PDIP−8
N SUFFIX
CASE 626
1
8
SOIC−8
D SUFFIX
CASE 751
1
8
PIN CONNECTIONS
(Top View)
GND
Inputs A
Inputs B
Output B
Output A VCC
−
−
+
+
1
2
3
4
8
7
6
5
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Micro8E
DM SUFFIX
CASE 846A
8
1
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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2
MAXIMUM RATINGS
Rating Symbol Value Unit
Power Supply Voltage VCC +36 or ±18 Vdc
Input Differential Voltage Range VIDR 36 Vdc
Input Common Mode Voltage Range (Note 1) VICR −0.3 to +36 Vdc
Output Short Circuit−to−Ground
Output Sink Current (Note 2)
ISC
ISink
Continuous
20
mA
Power Dissipation @ TA = 25°C
Derate above 25°C
PD
1/RJA
570
5.7
mW
mW/°C
Operating Ambient Temperature Range
LM293
LM393
LM2903
LM2903V, NCV2903 (Note 3)
NCV2903V (Note 3)
TA
−25 to +85
0 to +70
−40 to +105
−40 to +125
−40 to +150
°C
Maximum Operating Junction Temperature
LM393, 2903, LM2903V
LM293, NCV2903
TJ(max) 150
150
°C
Storage Temperature Range Tstg −65 to +150 °C
ESD Protection at any Pin (Note 4)
− Human Body Model
− Machine Model
VESD 1500
150
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. For supply voltages less than 36 V, the absolute maximum input voltage is equal to the supply voltage.
2. The maximum output current may be as high as 20 mA, independent of the magnitude of VCC, output short circuits to VCC can cause
excessive heating and eventual destruction.
3. NCV2903 and NCV2903V are qualified for automotive use.
4. VESD rating for NCV/SC devices is: Human Body Model − 2000 V; Machine Model − 200 V.
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤TA ≤ Thigh, unless otherwise noted.)
Characteristic Symbol
LM293, LM393
LM2903, LM2903V,
NCV2903, NCV2903V
Unit
Min Typ Max Min Typ Max
Input Offset Voltage (Note 6) VIO mV
TA = 25°C−±1.0 ±5.0 −±2.0 ±7.0
Tlow ≤TA ≤ Thigh − − ±9.0 −±9.0 ±15
Input Offset Current IIO nA
TA = 25°C−±5.0 ±50 −±5.0 ±50
Tlow ≤TA ≤ Thigh − − ±150 −±50 ±200
Input Bias Current (Note 7) IIB nA
TA = 25°C−25 250 −25 250
Tlow ≤TA ≤ Thigh − − 400 −200 500
Input Common Mode Voltage Range (Note 7) VICR V
TA = 25°C 0 −VCC −1.5 0−VCC −1.5
Tlow ≤TA ≤ Thigh 0−VCC −2.0 0−VCC −2.0
Voltage Gain AVOL 50 200 −25 200 −V/mV
RL ≥ 15 k, VCC = 15 Vdc, TA = 25°C
Large Signal Response Time − − 300 − − 300 −ns
Vin = TTL Logic Swing, Vref = 1.4 Vdc
VRL = 5.0 Vdc, RL = 5.1 k, TA = 25°C
Response Time (Note 9) tTLH −1.3 − − 1.5 −s
VRL = 5.0 Vdc, RL = 5.1 k, TA = 25°C
Input Differential Voltage (Note 10) VID − − VCC − − VCC V
All Vin ≥ GND or V− Supply (if used)
Output Sink Current ISink 6.0 16 −6.0 16 −mA
Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc TA = 25°C
Output Saturation Voltage VOL mV
Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA, TA = 25°C−150 400 − − 400
Tlow ≤TA ≤ Thigh − − 700 −200 700
Output Leakage Current IOL nA
Vin− = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA = 25°C−0.1 − − 0.1 −
Vin− = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc,
Tlow ≤TA ≤ Thigh − − 1000 − − 1000
Supply Current ICC mA
RL = ∞ Both Comparators, TA = 25°C−0.4 1.0 −0.4 1.0
RL = ∞ Both Comparators, VCC = 30 V − − 2.5 − − 2.5
LM293 Tlow = −25°C, Thigh = +85°C
LM393 Tlow = 0°C, Thigh = +70°C
LM2903 Tlow = −40°C, Thigh = +105°C
LM2903V & NCV2903 Tlow = −40°C, Thigh = +125°C
NCV2903V Tlow = −40°C, Thigh = +150°C
NCV2903 and NCV2903V are qualified for automotive use.
5. The maximum output current may be as high as 20 mA, independent of the magnitude of VCC, output short circuits to VCC can cause
excessive heating and eventual destruction.
6. At output switch point, VO]1.4 Vdc, RS = 0 with VCC from 5.0 Vdc to 30 Vdc, and over the full input common mode range
(0 V to VCC = −1.5 V).
7. Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant, independent of the output state,
therefore, no loading changes will exist on the input lines.
8. Input common mode of either input should not be permitted to go more than 0.3 V negative of ground or minus supply. The upper limit of
common mode range is VCC −1.5 V.
9. Response time is specified with a 100 mV step and 5.0 mV of overdrive. With larger magnitudes of overdrive faster response times are
obtainable.
10. The comparator will exhibit proper output state if one of the inputs becomes greater than VCC, the other input must remain within the common
mode range. The low input state must not be less than −0.3 V of ground or minus supply.
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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4
LM293/393 LM2903
Figure 2. Input Bias Current versus
Power Supply Voltage
Figure 3. Input Bias Current versus
Power Supply Voltage
Figure 4. Output Saturation Voltage
versus Output Sink Current
Figure 5. Output Saturation Voltage
versus Output Sink Current
Figure 6. Power Supply Current versus
Power Supply Voltage
Figure 7. Power Supply Current versus
Power Supply Voltage
VCC, SUPPLY VOLTAGE (Vdc) VCC, SUPPLY VOLTAGE (Vdc)
VCC, SUPPLY VOLTAGE (Vdc) VCC, SUPPLY VOLTAGE (Vdc)
ISink, OUTPUT SINK CURRENT (mA) ISink, OUTPUT SINK CURRENT (mA)
I , INPUT BIAS CURRENT (nA)
IB
V , SATURATION VOLTAGE (Vdc)
OL
I , SUPPLY CURRENT (mA)
CC
80
70
60
50
40
30
20
10
00 5.0 10 15 20 25 30 35 40
80
70
60
50
40
30
20
10
00 5.0 10 15 20 25 30 35 40
10
1.0
0.1
0.01
0.001
0.01 0.1 1.0 10 100
1.0
0.8
0.6
0.4
0.2
05.0 10 15 20 25 30 35 40
1.2
0.4
10
1.0
0.1
0.01
0.001
0.01 0.1 1.0 10 100
0 5.0 10 15 20 25 30 35 40
TA = 0° C
TA = +25° C TA = +25° C
TA = +85° C
TA = -40° C
TA = +70°C
TA = +125°C
RL = R
TA = 0° C
TA = +25° C
TA = +25°C
TA = 0°C
TA = +25° C
TA = -40°C
TA = -40° C
TA = 0° C
TA = +25° C
TA = +85° C
1.0
0.8
0.6
I , SUPPLY CURRENT (mA)
CC V , SATURATION VOLTAGE (Vdc)
OL I , INPUT BIAS CURRENT (nA)
IB
TA = +125°C
RL = R
TA = -55° C
TA = +70°C
TA = +125°C
TA = -55° C
Out of
Saturation
TA = +85°C
Out of
Saturation
TA = -55° C
TA = 0° C
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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APPLICATIONS INFORMATION
These dual comparators feature high gain, wide
bandwidth characteristics. This gives the device oscillation
tendencies if the outputs are capacitively coupled to the
inputs via stray capacitance. This oscillation manifests
itself during output transitions (VOL to VOH). To alleviate
this situation, input resistors <10 k should be used.
The addition of positive feedback (<10 mV) is also
recommended. It is good design practice to ground all
unused pins.
Differential input voltages may be larger than supply
voltage without damaging the comparator’s inputs. Voltages
more negative than −0.3 V should not be used.
Figure 8. Zero Crossing Detector
(Single Supply)
Figure 9. Zero Crossing Detector
(Split Supply)
Figure 10. Free−Running Square−Wave Oscillator Figure 11. Time Delay Generator
Figure 12. Comparator with Hysteresis
10
D1 prevents input from going negative by more than 0.6 V.
R1 + R2 = R3
R3 ≤R5 for small error in zero crossing.
Vin
10 k
D1
R1
8.2 k
6.8 k
R2
15 k
R3
+15 V
10 m
R5
220 k
R4
220 k
LM393
Vin(min) [ 0.4 V peak for 1% phase distortion ().
*
+VCC
10 k
Vin
-VEE
Vin Vin(min)
VCC
VO
- VEE 
LM393
-
+
LM393
51 k
51 k 51 k
RL
10 k
VCC
VCC
VCC
VO
VO
t
0
1.0 m
0.001 F
-
+
LM393
VCC VCC
VO
Vin
VO
+ Vref
Vref
Vref
0
0
0
VC
tO
t
``ON'' for t tO + t
where:
t = RC ȏ n ( Vref
VCC )
R RL
VC C
LM393
-
+
RS
VCC
RL
Vref
R1
R2
RS = R1 | | R2
Vth1 = Vref + (VCC -Vref) R1
R1 + R2 + RL
Vth2 = Vref - (Vref -VO Low) R1
R1 + R2
R1
tȏ
-
+
LM393
)
*
)
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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MARKING DIAGRAMS
1
8
x = 2 or 3
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G, G = Pb−Free Package
PDIP−8
CASE 626
SOIC−8
CASE 751
*
*This marking diagram also applies to NCV2903DR2G
Micro8
CASE 846A
LMx93
ALYW
G
1
8
2903V
ALYW
G
1
8
2903
ALYW
G
1
8
LM393N
AWL
YYWWG
1
8
LM2903N
AWL
YYWWG
x93
AYW G
G
1
8
(Note: Microdot may be in either location)
2903
AYW G
G
1
8
2903V
ALYWV
G
1
8
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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ORDERING INFORMATION
Device
Operating Temperature
Range Package Shipping†
LM293DG
−25°C to +85°C
SOIC−8
(Pb−Free)
98 Units / Rail
LM293DR2G 2500 / Tape & Reel
LM293DMR2G Micro8
(Pb−Free) 4000 / Tape and Reel
LM393DG
0°C to +70°C
SOIC−8
(Pb−Free)
98 Units / Rail
LM393DR2G 2500 / Tape & Reel
LM393NG PDIP−8
(Pb−Free) 50 Units / Rail
LM393DMR2G Micro8
(Pb−Free) 4000 / Tape and Reel
LM2903DG
−40°C to +105°C
SOIC−8
(Pb−Free)
98 Units / Rail
LM2903DR2G 2500 / Tape & Reel
LM2903DMR2G Micro8
(Pb−Free) 4000 / Tape and Reel
LM2903NG PDIP−8
(Pb−Free) 50 Units / Rail
LM2903VDG
−40°C to +125°C
SOIC−8
(Pb−Free)
98 Units / Rail
LM2903VDR2G 2500 / Tape & Reel
LM2903VNG PDIP−8
(Pb−Free) 50 Units / Rail
NCV2903DR2G SOIC−8
(Pb−Free) 2500 / Tape & Reel
NCV2903DMR2G Micro8
(Pb−Free) 4000 / Tape & Reel
NCV2903VDR2G −40°C to +150°CSOIC−8
(Pb−Free) 2500 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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PACKAGE DIMENSIONS
PDIP−8
N SUFFIX
CASE 626−05
ISSUE M
14
58
F
NOTE 5
D
e
b
L
A1
A
E3
E
A
TOP VIEW
CSEATING
PLANE
0.010 CA
SIDE VIEW
END VIEW
END VIEW
NOTE 3
DIM MIN NOM MAX
INCHES
A−−−− −−−− 0.210
A1 0.015 −−−− −−−−
b0.014 0.018 0.022
C0.008 0.010 0.014
D0.355 0.365 0.400
D1 0.005 −−−− −−−−
e0.100 BSC
E0.300 0.310 0.325
L0.115 0.130 0.150
−−−− −−−− 5.33
0.38 −−−− −−−−
0.35 0.46 0.56
0.20 0.25 0.36
9.02 9.27 10.02
0.13 −−−− −−−−
2.54 BSC
7.62 7.87 8.26
2.92 3.30 3.81
MIN NOM MAX
MILLIMETERS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCHES.
3. DIMENSION E IS MEASURED WITH THE LEADS RE-
STRAINED PARALLEL AT WIDTH E2.
4. DIMENSION E1 DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
E1 0.240 0.250 0.280 6.10 6.35 7.11
E2
E3 −−−− −−−− 0.430 −−−− −−−− 10.92
0.300 BSC 7.62 BSC
E1
D1
M
8X
e/2
E2
c
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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PACKAGE DIMENSIONS
SOIC−8 NB
CASE 751−07
ISSUE AK
SEATING
PLANE
1
4
58
N
J
X 45 _
K
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
6. 751−01 THRU 751−06 ARE OBSOLETE. NEW
STANDARD IS 751−07.
A
BS
D
H
C
0.10 (0.004)
DIM
A
MIN MAX MIN MAX
INCHES
4.80 5.00 0.189 0.197
MILLIMETERS
B3.80 4.00 0.150 0.157
C1.35 1.75 0.053 0.069
D0.33 0.51 0.013 0.020
G1.27 BSC 0.050 BSC
H0.10 0.25 0.004 0.010
J0.19 0.25 0.007 0.010
K0.40 1.27 0.016 0.050
M0 8 0 8
N0.25 0.50 0.010 0.020
S5.80 6.20 0.228 0.244
−X−
−Y−
G
M
Y
M
0.25 (0.010)
−Z−
Y
M
0.25 (0.010) ZSXS
M
____
1.52
0.060
7.0
0.275
0.6
0.024
1.270
0.050
4.0
0.155
ǒmm
inchesǓ
SCALE 6:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
LM393, LM293, LM2903, LM2903V, NCV2903, NCV2903V
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PACKAGE DIMENSIONS
Micro8t
CASE 846A−02
ISSUE H
S
B
M
0.08 (0.003) A S
T
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE
BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED
0.15 (0.006) PER SIDE.
4. DIMENSION B DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED 0.25 (0.010) PER SIDE.
5. 846A-01 OBSOLETE, NEW STANDARD 846A-02.
b
e
PIN 1 ID
8 PL
0.038 (0.0015)
−T−
SEATING
PLANE
A
A1 cL
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
8X 8X
6X ǒmm
inchesǓ
SCALE 8:1
1.04
0.041
0.38
0.015
5.28
0.208
4.24
0.167
3.20
0.126
0.65
0.0256
DIM
A
MIN NOM MAX MIN
MILLIMETERS
−− −− 1.10 −−
INCHES
A1 0.05 0.08 0.15 0.002
b0.25 0.33 0.40 0.010
c0.13 0.18 0.23 0.005
D2.90 3.00 3.10 0.114
E2.90 3.00 3.10 0.114
e0.65 BSC
L0.40 0.55 0.70 0.016
−− 0.043
0.003 0.006
0.013 0.016
0.007 0.009
0.118 0.122
0.118 0.122
0.026 BSC
0.021 0.028
NOM MAX
4.75 4.90 5.05 0.187 0.193 0.199
HE
HE
DD
E
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to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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Micro8 is a trademark of International Rectifier.
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