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KA293/KA293A, 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 Typ.
Compatible with all Forms of Logic
Low Input Bias Current 25nA Typ.
Low Input Offset Current
±5nA
Typ.
Low Offset Voltage
±1mV
Typ.
Descritpion
The KA293 series consists of two independent voltage
comparators designed to operate from a single power supply
over a wide voltage range.
8-DIP
1
8-SOP
1
9-SIP
1
Internal Block Diagram
Rev. 1.0.2
©2001 Fairchild Semiconductor Corporation
KA293/KA293A, KA393/KA393A, KA2903
Schematic Diagram
Absolute Maximum Ratings
Parameter
Power Supply Voltage
Differential Input Voltage
Input Voltage
Output Short Circuit to GND
Power Dissipation, Ta = 25°C
8-DIP
8-SOP
Operating Temperature
KA393/KA393A
KA293/KA293A
KA2903
Storage Temperature
Symbol
V
CC
V
I(DIFF)
V
I
-
P
D
Value
±18
or 36
36
- 0.3 to +36
Continuous
1040
480
0 ~ + 70
- 25 ~ + 85
- 40 ~ + 85
- 65 ~ + 150
Unit
V
V
V
-
mW
T
OPR
°C
T
STG
°C
Thermal Data
Parameter
Thermal Resistance Junction-Ambient Max.
8-DIP
8-SOP
Symbol
Rθja
Value
120
260
Unit
°C/W
2
KA293/KA293A, KA393/KA393A, KA2903
Electrical Characteristics
(V
CC
=5V, T
A
=25°C, unless otherwise specified)
Parameter
Input Offset Voltage
Input Offset Current
Input Bias Current
Symbol
V
IO
I
IO
I
BIAS
Conditions
V
O(P)
=1.4V, R
S
=0Ω
V
CM
= 0 to1.5V Note 1
Note 1
Note 1
KA293A/KA393A
Min.
-
-
-
-
-
-
0
V
I(R)
Note 1
I
CC
G
V
T
LRES
T
RES
I
SINK
V
SAT
I
O(LKG)
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, VI(+) =0V
I
SINK
= 4mA
V
I(-)
= 0V,
V
I(+)
= 1V
Note 1
V
O(P)
= 5V
V
O(P)
= 30V
0
-
-
50
-
-
6
-
-
-
-
-
0.6
0.8
200
350
1.4
18
160
-
0.1
-
±1
-
±5
-
65
-
-
±2
±4.0
±50
±150
250
400
V
CC
-1.5
V
CC
-2
1
2.5
-
-
-
-
400
700
-
1.0
KA293/KA393
-
-
-
-
-
-
0
0
-
-
50
-
-
6
-
-
-
-
±1
-
±5
-
65
-
-
-
0.6
0.8
200
350
1.4
18
160
-
0.1
-
±5
±9.0
±50
±150
250
400
V
CC
-1.5
V
CC
-2
1
2.5
-
-
-
-
400
700
-
1.0
Unit
mV
nA
nA
Typ. Max. Min. Typ. Max.
Input Common Mode
Voltage Range
V
Supply Current
Voltage Gain
Large Signal
Response
Time
Response Time
Output Sink Current
Output Saturation
Voltage
Output Leakage
Current
mA
V/mV
nS
µS
mA
mV
nA
µA
NOTE 1
KA393 / KA393A : 0
≤
T
A
≤
+70°C
KA293 / KA293A : -25
≤
T
A
≤
+85°C
KA2903 : -40
≤
T
A
≤
+85°C
3
KA293/KA293A, KA393/KA393A, KA2903
Electrical Characteristics
(Continued)
(V
CC
=5V, T
A
=25°C, unless otherwise specified)
Parameter
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
NOTE 1
KA393 / KA393A : 0
≤
T
A
≤
+70°C
KA293 / KA293A : -25
≤
T
A
≤
+85°C
KA2903 : -40
≤
T
A
≤
+85°C
Symbol
V
IO
I
IO
I
BIAS
V
I(R)
I
CC
G
V
T
LRES
T
RES
I
SINK
V
SAT
I
O(LKG)
Conditions
V
O(P)
=1.4V, R
S
=0Ω
V
CM
= 0 to 1.5V
Note 1
Note 1
Note 1
Note 1
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,
VI(+) =0V
I
SINK
= 4mA
V
I(-)
= 0V,
V
I(+)
= 1V
NOTE 1
V
O(P)
= 5V
V
O(P)
= 30V
KA2903
Min.
-
-
-
-
-
-
0
0
-
-
25
-
-
6
-
-
-
-
Typ.
±1
±9
±5
±50
65
-
-
-
0.6
1
100
350
1.5
16
160
-
0.1
-
Max.
±7
±15
±50
±200
250
500
V
CC
-1.5
V
CC
-2
1
2.5
-
-
-
-
400
700
-
1.0
Unit
mV
nA
nA
V
mA
V/mV
nS
µS
mA
mV
nA
µA
4
KA293/KA293A, KA393/KA393A, KA2903
Typical Performance Characteristics
Figure 1. Supply Current vs Supply Voltage
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 Transition
5
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