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Is Now Part of
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of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right
to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor 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. Buyer is responsible for its products and applications using ON
Semiconductor products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON
Semiconductor 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. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA
Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended
or unauthorized application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out
of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor
is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
©2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 2.0.2
Features
• Single Supply Operation: 2V to 36V
• Dual Supply Operation: 1V to 18V
• Allow Comparison of Voltages Near Ground Potential
•Low Current Drain 800A Typ.
• Compatible with all Forms of Logic
• Low Input Bias Current 25nA Typ.
• Low Input Offset Current 5nA Typ.
• Low Offset Voltage 1mV Typ.
Description
The LM2903, LM393/LM393A, LM293A consist of two
independent voltage comparators designed to operate from a
single power supply over a wide voltag e range.
8-DIP
8-SOIC
1
1
Internal Block Diagram
-
+
+
-
1
2
3
45
6
7
8VCC
OUTPUT2
IN2 (-)
IN2 (+)
OUTPUT1
IN1 (-)
IN1 (+)
GND
LM2903,LM393/LM393A,LM293A
Dual Differential Comparator
LM2903,LM393/LM393A,LM293A
2
Schematic Diagram
Absolute Maximum Ratings
Thermal Data
Parameter Symbol Value Unit
Power Supply Voltage VCC 18 or 36 V
Differential Input Voltage VI(DIFF) 36 V
Input Voltage VI-0.3 to +36 V
Output Short Circuit to GND - Continuous -
Power Dissipation, Ta = 25C
8-DIP
8-SOIC PD1040
480 mW
Operating Temperature
LM393/LM393A
LM2903
LM293A TOPR 0 ~ +70
-40 ~ +105
-25 ~ +85 C
Storage Temperature TSTG -65 ~ +150 C
Parameter Symbol Value Unit
Thermal Resistance Junction-Ambient Max.
8-DIP
8-SOIC Rja 120
260 C/W
Q1
Q2 Q3
Q4
Q5 Q6
Q7
Q8
Q9
OUTPUT
VCC
Q12
Q13
Q14
D1
D2 D3
D4
D5
D6
R1
R2
IN (-)
GND
IN (+)
LM2903,LM393/LM393A,LM293A
3
Electrical Characteristics
(VCC = 5V, TA = 25C, unless otherwise specified)
Note1
LM393/LM393A: 0 TA +70C
LM2903: -40 TA+105C
LM293A : -25 TA +85C
Parameter Symbol Conditions LM293A/LM393A LM393 Unit
Min. Typ. Max. Min. Typ. Max.
Input Offset
Voltage VIO VO(P) =1.4V, RS = 0-12-15mV
VCM= 0 to 1.5V Note1 - - 4.0 - - 9.0
Input Offset Current IIO -550 - 550 nA
Note1 - - 150 - - 150
Input Bias Current IBIAS -65250-65250
nA
Note1 - - 400 - - 400
Input Common
Mode
Voltage Range VI(R) 0-
VCC
-1.5 0-
VCC
-1.5 V
Note1 0 - VCC-2 0 - VCC-2
Supply Current ICC RL = VCC = 5V - 0.6 1 - 0.6 1 mA
RL = , VCC = 30V - 0.8 2.5 - 0.8 2.5
Voltage Gain GVVCC =15V, RL 15k
(for large VO(P-P)swing)50 200 - 50 200 - V/mV
Large Signal
Response Time TLRES VI =TTL Logic Swing
VREF =1.4V, VRL = 5V,
RL = 5.1k
- 350 - - 350 - nS
Response Time TRES VRL =5V, RL =5.1k-1.4- -1.4-S
Output Sink Current ISINK VI(-) 1V, VI(+) =0V,
VO(P) 1.5V 618- 618-mA
Output Saturation
Voltage VSAT VI(-) 1V, VI(+) = 0V - 160 400 - 160 400 mV
ISINK = 4mA Note1 - - 700 - - 700
Output Leakage
Current IO(LKG) VI(-) = 0V,
VI(+) = 1V VO(P) = 5V - 0.1 - - 0.1 - nA
VO(P) = 30V - - 1.0 - - 1.0 A
LM2903,LM393/LM393A,LM293A
4
Electrical Characteristics (Continued)
(VCC = 5V, TA = 25C, unless othe rw ise sp ec ified )
Note1
LM393/LM393A: 0 TA +70C
LM2903: -40 TA +105C
LM293A : -25 TA +85C
Parameter Symbol Conditions LM2903 Unit
Min. Typ. Max.
Input Offset Voltage VIO VO(P) =1.4V, RS = 0-17mV
VCM= 0 to 1.5V Note1 - 915
Input Offset Current IIO -550 nA
Note1 - 50 200
Input Bias Current IBIAS -65250
nA
Note1 - - 500
Input Common Mode
Voltage Range VI(R) 0-
VCC
-1.5 V
Note1 0 - VCC-2
Supply Current ICC RL = , VCC = 5V - 0.6 1 mA
RL = , VCC = 30V - 1 2.5
Voltage Gain GVVCC =15V, RL15k
(for large VO(P-P)swing)25 100 - V/mV
Large Signal Response Time TLRES VI =TTL Logic Swing
VREF =1.4V, VRL = 5V, RL = 5.1k- 350 - nS
Response Time TRES VRL = 5V, RL = 5.1k-1.5- S
Output Sink Current ISINK VI(-) 1V, VI(+) = 0V, VO(P) 1.5V 6 16 - mA
Output Saturation Voltage VSAT VI(-) 1V, VI(+) = 0V - 160 400 mV
ISINK = 4mA Note1 - - 700
Output Leakage Current IO(LKG) VI(-) = 0V, VO(P) = 5V - 0.1 - nA
VI(+) = 1V VO(P) = 30V - - 1. 0 A
LM2903,LM393/LM393A,LM293A
5
Typical Performance Characteristics
Figure 1. Supply Current vs Supply Volta ge Figure 2. Input Current vs Supply Voltage
Figure 3. Output Saturation Voltage vs Sink Current Figure 4. Response Time for Various Input
Overdrive-Negative Transition
Figure 5. Response Time for Various Input
Overdrive-Positive Tran sition
LM2903,LM393/LM393A,LM293A
6
Mechanical Dimensions
Package Dimensions in millimeters
C
7° TYP
7° TYP
.430 MAX
[10.92]
B
A.400
.373 [10.15
9.46 ]
.250±.005 [6.35±0.13]
.036 [0.9 TYP]
.070
.045 [1.78
1.14]
.100
[2.54]
.300
[7.62]
.060 MAX
[1.52]
.310±.010 [7.87±0.25]
.130±.005 [3.3±0.13]
.210 MAX
[5.33]
.140
.125 [3.55
3.17]
.015 MIN
[0.38]
.021
.015 [0.53
0.37]
.010+.005
-.000 [0.254+0.127
-0.000 ]
PIN #1
PIN #1
(.032) [R0.813]
(.092) [Ø2.337]
TOP VIEW
OPTION 1
TOP VIEW
OPTION 2
.001[.025] C
N08EREVG
C. DOES NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
DAMBAR PROTRUSIONS SHALL NOT EXCEED
D. DOES NOT INCLUDE DAMBAR PROTRUSIONS.
B. CONTROLING DIMENSIONS ARE IN INCHES
A. CONFORMS TO JEDEC REGISTRATION MS-001,
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED
VARIATIONS BA
E. DIMENSIONING AND TOLERANCING
NOTES:
REFERENCE DIMENSIONS ARE IN MILLIMETERS
.010 INCHES OR 0.25MM.
.010 INCHES OR 0.25MM.
PER ASME Y14.5M-1994.
8-DIP
LM2903,LM393/LM393A,LM293A
7
Mechanical Dimensions (Continued)
Package Dimensions in millimeters
8-SOIC
LM2903,LM393/LM393A,LM293A
7/24/12 0.0m 001
Stock#DS400295
2012 Fairchild Semiconductor Corporation
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATEN T RIGHTS, NOR THE RIGHTS OF OTHERS.
Ordering Information
Product Number Operating Temperature Package Packing Method
LM393N
0 ~ +70C
8-DIP Rail
LM393AN Rail
LM393M
8-SOIC
Rail
LM393MX Tape & Reel
LM393AM Rail
LM393AMX Tape & Reel
LM2903N -40 ~ +105C 8-DIP Rail
LM2903M 8-SOIC Rail
LM2903MX Tape & Reel
LM293AN -25 ~ +85C 8-DIP Rail
www.onsemi.com
1
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.
ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent
coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.
ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor 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.
Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,
regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor 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. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not
designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification
in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized
application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and
expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such
claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This
literature is subject to all applicable copyright laws and is not for resale in any manner.
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