KA393 / KA393A, KA2903 — Dual Differential Comparator
June 2011
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
Figure 1. DIP Package
Figure 2. SOIC Package
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 3. Block Diagram
Figure 4. Schematic
Ordering Information
Part Number
KA393
KA393A
KA393DTF
KA393ADTF
KA2903DTF
Operating Temperature Range
0 to 70°C
0 to 70°C
0 to 70°C
0 to 70°C
-40 to 85°C
Package
8-Lead DIP
Packing Method
Tube
Tube
Tape and Reel
Tape and Reel
Tape and Reel
8-Lead SOIC
© 2001 Fairchild Semiconductor Corporation
KA393 / KA2903 • Rev. 1.0.3
www.fairchildsemi.com
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
V
CC
V
I(DIFF)
V
I
Power Supply Voltage
Differential Input Voltage
Input Voltage
Output Short Circuit to GND
P
D
T
OPR
T
STG
RΘ
JA
ESD
Power Dissipation,
T
A
= 25°C
Operating Temperature
Storage Temperature
Thermal Resistance,
Junction-to-Ambient
Parameter
Min.
±18
-0.3
Max.
36
36
+36.0
1040
480
Unit
V
V
V
Continuous
mW
°C
°C
°C/W
V
8-DIP
8-SOIC
KA393 / KA393A
KA2903
8-DIP
8-SOIC
0
-40
-65
+70
+85
+150
120
260
1000
2000
Electrostatic Discharge Human Body Model, JESD22-A114
Capability
Charged Device Model, JESD22-C101
© 2001 Fairchild Semiconductor Corporation
KA393 / KA2903 • Rev. 1.0.3
www.fairchildsemi.com
2
KA393 / KA393A, KA2903 — Dual Differential Comparator
Electrical Characteristics
V
CC
= 5V and T
A
= 25°C, Unless otherwise specified.
Symbol
Parameter
Input Offset
Voltage
KA393
KA393A
Conditions
V
O(P)
=1.4V, R
S
=0Ω
V
CM
= 0 to1.5V, T
A
= 0 to +70°C
V
O(P)
=1.4V, R
S
=0Ω
V
CM
= 0 to1.5V, T
A
= 0 to +70°C
T
A
=25°C
T
A
= 0 to +70°C
T
A
=25°C
T
A
= 0 to +70°C
T
A
=25°C
T
A
= 0 to +70°C
R
L
=
∞,
V
CC
= 5V
R
L
=
∞,
V
CC
= 30V
V
CC
=15V, R
L
≥15KΩ,
(for Large V
O(P-P)
Swing)
V
I
=TTL Logic Swing V
REF
=1.4V,
V
RL
=5V, R
L
=5.1KΩ
V
RL
=5V, R
L
=5.1KΩ
V
I(-)
≥
1V, V
I(+)
= 0V, V
O(P)
≤
1.5V
V
I(-)
≥
1V, V
I(+)
=0V
I
SINK
=4mA, T
A
= 0 to +70°C
V
I(-)
= 0V, V
I(+)
= 1V, V
O(P)
= 5V
V
I(-)
= 0V, V
I(+)
= 1V, V
O(P)
= 30V
V
O(P)
=1.4V, R
S
=0Ω
V
CM
= 0 to1.5V, T
A
= -40 to +85°C
T
A
=25°C
T
A
= -40 to +85°C
T
A
=25°C
T
A
= -40 to +85°C
T
A
=25°C
T
A
= -40 to +85°C
R
L
=
∞,
V
CC
= 5V
R
L
=
∞,
V
CC
= 30V
V
CC
=15V, R
L
≥15KΩ,
(for Large V
O(P-P)
Swing)
V
I
=TTL Logic Swing V
REF
=1.4V,
V
RL
=5V, R
L
=5.1KΩ
V
RL
=5V, R
L
=5.1KΩ
V
I(-)
≥
1V, V
I(+)
= 0V, V
O(P)
≤
1.5V
V
I(-)
≥
1V, V
I(+)
=0V
I
SINK
=4mA, T
A
= -40 to +85°C
V
I(-)
= 0V, V
I(+)
= 1V, V
O(P)
= 5V
V
I(-)
= 0V, V
I(+)
= 1V, V
O(P)
= 30V
Min.
Typ.
±1
±1
±5
65
Max.
±5
±9
±2
±4
±50
±150
250
400
V
CC
-1.5
V
CC
-2.0
Unit
V
IO
mV
I
IO
I
BIAS
V
I(R)
I
CC
V
G
t
LRES
t
RES
I
SINK
V
SAT
I
O(LKG)
KA2903
V
IO
I
IO
I
BIAS
V
I(R)
I
CC
V
G
t
LRES
t
RES
I
SINK
V
SAT
I
O(LKG)
Input Offset Current
Input Bias Current
Input Common-Mode Voltage
Range
Supply Current
Voltage Gain
Large Signal Response Time
Response Time
Output Sink Current
Output Saturation Voltage
Output Leakage Current
nA
nA
V
mA
V/mV
ns
µs
mA
0
0
0.6
0.8
50
200
350
1.4
6
18
160
0.1
1.0
2.5
400
700
1.0
mV
nA
µA
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Common-Mode Voltage
Range
Supply Current
Voltage Gain
Large Signal Response Time
Response Time
Output Sink Current
Output Saturation Voltage
Output Leakage Current
±1
±9
±5
±50
65
0
0
0.6
1.0
25
100
350
1.5
6
16
160
0.1
±7
±15
±50
±200
250
500
V
CC
-1.5
V
CC
-2.0
1.0
2.5
mV
nA
nA
V
mA
V/mV
ns
µs
mA
400
700
1.0
mV
nA
µA
© 2001 Fairchild Semiconductor Corporation
KA393 / KA2903 • Rev. 1.0.3
www.fairchildsemi.com
3
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 Various Input
Overdrive-Positive Transitions
© 2001 Fairchild Semiconductor Corporation
KA393 / KA2903 • Rev. 1.0.3
www.fairchildsemi.com
4
KA393 / KA393A, KA2903 — Dual Differential Comparator
Physical Dimensions
5.00
4.80
3.81
8
5
A
0.65
B
6.20
5.80
1.75
4.00
3.80
5.60
PIN ONE
INDICATOR
1
4
1.27
0.25
0.25
0.10
C B A
(0.33)
1.27
LAND PATTERN RECOMMENDATION
SEE DETAIL A
1.75 MAX
0.51
0.33
R0.10
R0.10
C
0.25
0.19
0.10 C
OPTION A - BEVEL EDGE
0.50
x 45°
0.25
GAGE PLANE
0.36
OPTION B - NO BEVEL EDGE
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
8°
0°
0.90
0.40
SEATING PLANE
(1.04)
DETAIL A
SCALE: 2:1
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 most 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/.
© 2001 Fairchild Semiconductor Corporation
KA393 / KA2903 • Rev. 1.0.3
www.fairchildsemi.com
5
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