TIGER ELECTRONIC CO.,LTD
LM2903N/D
Dual Differential Comparators
DESCRIPTION：
Outline Drawing
The
LM2903
consists of two independent voltage
comparators with an offset voltage specification as low as
2.0mV max.for two comparators which were designed
specifically to operation from a single power supply over a
wide range of voltages. Operate from split power supplies is
also possible,and the low power supply current drain is
independent of the magnitude of the power supply
voltage.These comparators also have a unique characteristic in
that the input common-mode voltage range includes
ground,even though operated from a single power supply
voltage.
LM2903
LM2903N
DIP8
FEATURE：
Wide supply voltage range：
single supply operation： to
2V
36V dual supply operation：±1V to
±18V
LM2903D
Very low supply current drain (0.8m,A) independent of
supply voltage(2.0mW/comparator at 5.0 V
DC
)
Low input biasing current：25nA
Low input offset current：
5.0nA; Low input offset voltage：
5.0mV
Input common-mode voltage range includes ground
SOP8
Differential input voltage range equal to the power supply voltage
Output voltage compatible with TTL,DTL,ECL,MOS and CMOS logic systems.
BLOCK DIAGRAM
PIN CONFIGURATION
1/4
LM2903N/D
PIN DESCRIPTIONS
No
1
2
3
4
Description
Output 1
-Input1
+Input1
Ground
Symbol
OUT1
IN1（-）
IN1（+）
GND
No
5
6
7
8
Description
+Input2
-Input2
Output 2
Supply Voltage
Symbol
IN2（+）
IN2（-）
OUT1
Vcc
ABSOLUTE MAXIMUM RATINGS
Characteristics
Single supply voltage
Supply Voltage
Dual supplies voltage
Differential Input Voltage
Input common-mode voltage
Output short-circuit to ground
Input Current
Maximum junction temperature
DIP8
Power Dissipation
SOP8
Operating Temperature Range
Storage Temperature Range
Symbol
Vcc
V
IDR
V
ICR
I
OG
I
IN
T
J
P
D
Tamb
Tstg
-20
-65
Min.
Max.
±18
36
36
36
20
50
125
570
300
+85
150
Unit
V
V
V
mA
mA
℃
mW
℃
℃
-0.3
ELECTRICAL CHARACTERISTICS
（Unless
otherwise specified :Vcc=5V，Tamb=25℃）
Characteristics
Input Offset Voltage
Input Offset Current
Input Bias Current
Input
Common-mode
Voltage Range
Supply Current
Voltage Gain
Large Signal Response
Time
Response Time
Input Differential Voltage
Output Sink Current
output saturation voltage
Test conditions
0℃
≤
Ta
≤
70℃
0℃
≤
Ta
≤
70℃
0℃
≤
Ta
≤
70℃
0℃
≤
Ta
≤
70℃
R
L
=∞ dual comparator
R
L
=∞，dual comparator Vcc=30V
R
L
≥
15KΩ，Vcc=15V
V
IN
=TTL Logic Swing，V
REF
=1.4V，
V
RL
=5.0V， R
L
=5.1KΩ
V
RL
=5.0V， R
L
=5.1KΩ
Symbo
V
IO
I
IO
I
IB
V
ICR
Icc
Gv
t
RES
t
RES
V
ID
I
SINK
50
0
0
Mi
Typ.
±1.0
Max
±5.0
±9.0
±5.0
±50
±150
25
250
400
Vcc-1.5
Vcc-2.0
0.4
1.0
2.5
200
300
1.3
Vcc
6.0
16
130
400
700
0.1
1000
nA
mV
Unit
mV
nA
nA
V
mA
V/mV
ns
ns
V
mA
Output Leakage Current
V
IN（-）
≥
1.0V，
IN（+）
=0V，
≤
1.5V
V
Vo
V
IN
（-）
≥
1.0V，
IN
（+）
=0V，
SINK
≤
4.0mA
V
I
V
IN
≥
1.0V，
IN
=0V，
SINK
≤
4.0mA V
SAT
（-）
V
（+）
I
0℃
≤
Ta
≤
70℃
V
IN（+）
≥
1.0V，V
IN（-）
=0V，Vo=5.0V
I
OL
V
IN（+）
≥
1.0V，V
IN（-）
=0V，Vo=30V
0℃
≤
Ta
≤
70℃
2/4
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