LM393
Low Power Low Offset Voltage Dual
Comparators
The LM393 consists of two independent precision voltage
comparators with an offset voltage specification as low as 2.0 mV
max for two comparators which were designed specifically to operate
from a single power supply over a wide range of voltages.
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay generators;
wide range VCO; MOS clock timers; multivibrators and high voltage
digital logic gates.
•
Single or Split Supply Operation
Low Input Bias Current
•
•
Low Input Offset Current
Input Common Mode Voltage Range to Gnd
•
•
Low Output Saturation Voltage
•
TTL and CMOS Compatible
ORDERING INFORMATION
LM393N Plastic
LM393D SOIC
T
A
= 0° to 70° C for all packages.
LOGIC DIAGRAM
PIN ASSIGNMENT
LM393
PIN 8 = V
CC
PIN 4 = GND
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2018 JUN
LM393
MAXIMUM RATINGS
*
Symbol
V
CC
Parameter
Power Supply Voltages
Single Supply
Split Supplies
V
IDR
V
ICR
I
SC
I
IN
T
J
Tstg
T
L
P
D
Input Differential Voltage Range
Input Common Mode Voltage Range (1)
Output Short Circuit to Ground
Input Current, per pin (2)
Junction Temperature
Plastic Packages
Storage Temperature
Lead Temperature, 1mm from Case for 10 Seconds
Power Dissipation @T
A
=25°C
Plastic Package
Derate above 25°C
150
-65 to +150
260
570
5.7
°C
°C
°C
µW
mW/°C
36
±18
36
-0.3 to V
CC
Continuous
50
mA
V
V
V
Value
Unit
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
Notes:
1. Split Power Supplies.
2. V
IN
<-0.3V. This input current will only exist when voltage at any of the input leads is driven negative.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
T
A
DC Supply Voltage
Operating Temperature, All Package Types
Parameter
Min
±2.5
or 5.0
0
Max
±15
or
30
+70
Unit
V
°C
This device contains protection circuitry to guard against damage due to high static voltages or
electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum
rated voltages to this high-impedance circuit. For proper operation, V
IN
and V
OUT
should be constrained to the
range GND≤(V
IN
or V
OUT
)≤V
CC
.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V
CC
). Unused
outputs must be left open.
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2018 JUN
LM393
DC ELECTRICAL CHARACTERISTICS
(T
A
=0 to +70°C)
Guaranteed Limit
Symbol
V
IO
Parameter
Input Offset Voltage
Test Conditions
V
0
=1.4V
V
CC
=5.0-30V;R
S
≤100Ω
V
ICR
=0V - (V
CC
-1.5)V
V
0
=1.4V
V
CC
=5.0-30V
V
ICR
=0V - (V
CC
-1.5)V
V
0
=1.4V
V
CC
=5.0-30V
V
ICR
=0V - (V
CC
-1.5)V
V
CC
=5.0-30V
R
L
=∞,V
CC
=5.0
R
L
=∞,V
CC
=30V
A
VOL
t
1
Voltage Gain
Large Signal
Response Time
Response Time
(Note 6)
Output Sink Current
Saturation Voltage
Output Leakage
Current
Differential Input
Voltage Range
V
CC
=15V, R
L
=15KΩ
V
IN
=TTL Logic Swing,
V
ref
=1.4V, V
CC
=5.0V,
R
L
=5.1KΩ, V
RL
=5.0V
V
CC
=5.0V, R
L
=5.1KΩ,
V
RL
=5.0V
V
I
(-)=1.0V, V
I
(+)=0V,
V
0
≤1.5V,
V
CC
=5.0V
V
I
(-)=1.0V, V
I
(+)=0V,
I
sink
≤4.0mA,
V
CC
=5.0V
V
I
(+)=1.0V, V
I
(-)=0V,
V
0
=5.0V
V
0
=30V
All V
IN
≥GND
or V-Supply
(if used)
Min
-
Typ
Max
9.0
Unit
mV
I
IB
Input Bias Current
-
400
nA
I
IO
Input Offset Current
-
±150
nA
V
ICR
I
CC
Input Common Mode
Voltage Range
Supply Current
0
-
-
-
-
200*
300*
V
CC
-
2.0V
1.0*
2.5*
-
-
V
mA
V/mV
ns
t
2
I
sink
V
sat
I
OL
-
6.0*
-
1.3*
-
-
-
-
700
µs
mA
mV
nA
0.1*
1000
V
CC
V
V
IDR
*=@25°C
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LM393
TYPICAL PERFORMANCE CHARACTERISTICS
(V
CC
=1.5V, T
A
=+25°C, (each comporator))
Figure 1. Input Bias Current versus Power Supply
Voltage
Figure 2. Output Saturation Voltage versus Output
Sink Current
Figure 3. Output Saturation Voltage versus Output Sink Current
Figure 4. Power Supply Current versus Power
Supply Voltage
Figure 5. Power Supply Current versus Power
Supply Voltage
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2018 JUN
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