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Please note: As part of the Fairchild Semiconductor integration, some of the Fairchild orderable part numbers
will need to change in order to meet ON Semiconductor’s system requirements. Since the ON Semiconductor
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(_), the underscore (_) in the Fairchild part numbers will be changed to a dash (-). This document may contain
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email any questions regarding the system integration to Fairchild_questions@onsemi.com.
Is Now Part of
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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.
June 2011
© 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA393 / KA2903 • Rev. 1.0.3
KA393 / KA393A, KA2903 — Dual Differential Comparator
KA393 / KA393A, KA2903
Dual Differential Comparator
Features
Single Supply Operation: 2V to 36V
Dual Supply Operation: ±1V to ±18V
Allow Comparison of Voltages Near Ground
Potential
Low Current Drain: 800µA Typical
Compatible with all Forms of Logic
Low Input Bias Current: 25nA Typical
Low Input Offset Current: ±5nA Typical
Low Offset Voltage: ±1mV Typical
Description
The KA393 / KA393A / KA2903 series consists of two
independent voltage comparators designed to operate
from a single power supply over a wide voltage range.
Figure 1. DIP Package Figure 2. SOIC Package
Figure 3. Block Diagram Figure 4. Schematic
Ordering Information
Part Number Operating Temperature Range Package Packing Method
KA393 0 to 70°C 8-Lead DIP Tube
KA393A 0 to 70°C Tube
KA393DTF 0 to 70°C
8-Lead SOIC
Tape and Reel
KA393ADTF 0 to 70°C Tape and Reel
KA2903DTF -40 to 85°C Tape and Reel
© 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA393 / KA2903 • Rev. 1.0.3 2
KA393 / KA393A, KA2903 — Dual Differential Comparator
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol Parameter Min. Max. Unit
VCC Power Supply Voltage ±18 36 V
VI(DIFF) Differential Input Voltage 36 V
VI Input Voltage -0.3 +36.0 V
Output Short Circuit to GND Continuous
PD Power Dissipation,
TA = 25°C
8-DIP 1040
mW
8-SOIC 480
TOPR Operating Temperature
KA393 / KA393A 0 +70 °C
KA2903 -40 +85
TSTG Storage Temperature -65 +150 °C
RΘJA Thermal Resistance,
Junction-to-Ambient
8-DIP 120
°C/W
8-SOIC 260
ESD Electrostatic Discharge
Capability
Human Body Model, JESD22-A114 1000 V
Charged Device Model, JESD22-C101 2000
© 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA393 / KA2903 • Rev. 1.0.3 3
KA393 / KA393A, KA2903 — Dual Differential Comparator
Electrical Characteristics
VCC = 5V and TA = 25°C, Unless otherwise specified.
Symbol Parameter Conditions Min. Typ. Max. Unit
VIO Input Offset
Voltage
KA393 VO(P) =1.4V, RS =0Ω ±1 ±5
mV
VCM= 0 to1.5V, TA= 0 to +70°C ±9
KA393A VO(P) =1.4V, RS =0Ω ±1 ±2
VCM= 0 to1.5V, TA= 0 to +70°C ±4
IIO Input Offset Current TA=25°C ±5 ±50
nA
TA= 0 to +70°C ±150
IBIAS Input Bias Current TA=25°C 65 250
nA
TA= 0 to +70°C 400
VI(R) Input Common-Mode Voltage
Range TA=25°C 0 VCC-1.5 V
TA= 0 to +70°C 0 VCC-2.0
ICC Supply Current RL = ∞, VCC = 5V 0.6 1.0 mA
RL = ∞, VCC = 30V 0.8 2.5
VG Voltage Gain VCC =15V, RL≥15KΩ,
(for Large VO(P-P) Swing) 50 200 V/mV
tLRES Large Signal Response Time VI =TTL Logic Swing VREF =1.4V,
VRL =5V, RL =5.1KΩ 350 ns
tRES Response Time VRL =5V, RL =5.1KΩ 1.4 µs
ISINK Output Sink Current VI(-) ≥ 1V, VI(+) = 0V, VO(P) ≤ 1.5V 6 18 mA
VSAT Output Saturation Voltage VI(-) ≥ 1V, VI(+) =0V 160 400 mV
ISINK=4mA, TA= 0 to +70°C 700
IO(LKG) Output Leakage Current VI(-) = 0V, VI(+) = 1V, VO(P) = 5V 0.1 nA
VI(-) = 0V, VI(+) = 1V, VO(P) = 30V 1.0 µA
KA2903
VIO Input Offset Voltage VO(P) =1.4V, RS =0Ω ±1 ±7
mV
VCM= 0 to1.5V, TA= -40 to +85°C ±9 ±15
IIO Input Offset Current TA=25°C ±5 ±50
nA
TA= -40 to +85°C ±50 ±200
IBIAS Input Bias Current TA=25°C 65 250
nA
TA= -40 to +85°C 500
VI(R) Input Common-Mode Voltage
Range TA=25°C 0 VCC-1.5 V
TA= -40 to +85°C 0 VCC-2.0
ICC Supply Current RL = ∞, VCC = 5V 0.6 1.0 mA
RL = ∞, VCC = 30V 1.0 2.5
VG Voltage Gain VCC =15V, RL≥15KΩ,
(for Large VO(P-P) Swing) 25 100 V/mV
tLRES Large Signal Response Time VI =TTL Logic Swing VREF =1.4V,
VRL =5V, RL =5.1KΩ 350 ns
tRES Response Time VRL =5V, RL =5.1KΩ 1.5 µs
ISINK Output Sink Current VI(-) ≥ 1V, VI(+) = 0V, VO(P) ≤ 1.5V 6 16 mA
VSAT Output Saturation Voltage VI(-) ≥ 1V, VI(+) =0V 160 400 mV
ISINK=4mA, TA= -40 to +85°C 700
IO(LKG) Output Leakage Current VI(-) = 0V, VI(+) = 1V, VO(P) = 5V 0.1 nA
VI(-) = 0V, VI(+) = 1V, VO(P) = 30V 1.0 µA
© 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA393 / KA2903 • Rev. 1.0.3 4
KA393 / KA393A, KA2903 — Dual Differential Comparator
Typical Performance Characteristics
Figure 5. Supply Current vs. Supply Voltage Figure 6. Input Current vs. Supply Voltage
Figure 7. Output Saturation Voltage
vs. Sink Current Figure 8. Response Time for Various Input
Overdrive-Negative Transitions
Figure 9. Response Time for Va
r
ious Input
Overdrive-Positive Transitions
© 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA393 / KA2903 • Rev. 1.0.3 5
KA393 / KA393A, KA2903 — Dual Differential Comparator
Physical Dimensions
Figure 10. 8-Lead, Small-Outline Integrated Circuit (SOIC), JEDEC MS-012, .150 " Narrow Body
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the mo st recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the
warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
8°
0°
SEE DETAIL A
NOTES: UNLESS OTHERWISE SPECIFIED
A) THIS PACKAGE CONFORMS TO JEDEC
MS-012, VARIATION AA, ISSUE C,
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS DO NOT INCLUDE MOLD
FLASH OR BURRS.
D) LANDPATTERN STANDARD: SOIC127P600X175-8M.
E) DRAWING FILENAME: M08AREV13
LAND PATTERN RECOMMENDATION
SEATING PLANE
C
GAGE PLANE
x 45°
DETAIL A
SCALE: 2:1
PIN ONE
INDICATOR
4
8
1
B
5
A
5.60
0.65
1.75
1.27
6.20
5.80
3.81
4.00
3.80
5.00
4.80
(0.33)
1.27
0.51
0.33
0.25
0.10
1.75 MAX
0.25
0.19
0.36
0.50
0.25
R0.10
R0.10
0.90
0.40
(1.04)
OPTION A - BEVEL EDGE
OPTION B - NO BEVEL EDGE
0.25 CBA
0.10 C
© 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA393 / KA2903 • Rev. 1.0.3 6
KA393 / KA393A, KA2903 — Dual Differential Comparator
Physical Dimensions
Figure 1. 8-Lead, DIP, JEDEC MS-001, .300" Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the mo st recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the
warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
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.
© 2001 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA393 / KA2903 • Rev. 1.0.3 7
KA393 / KA393A, KA2903 — Dual Differential Comparator
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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