LM393 Datasheet, PDF (1/4 Pages) Motorola, Inc – SINGLE SUPPLY, LOW POWER DUAL COMPARATORS

LM393 Dual Differential Comparator
DUAL DIFFERENTIAL COMPARATORS
The LM393 dual differential comparator is
made up of two voltage comparators that
operate using the same power supply. THe
supply voltage can range from 2 to 36 volts.
Dual supplies can also be used as long as the
difference between them is 2 to 36 volts. The
LM393 is designed to operate at a temperature
range of 0^oC to 70^oC.
FEATURES
PIN ARRANGEMENT
l
Single or dual supplies
8 DIP LM393CD 8 SOP LM393CS
l
2 to 36 V Supply
l
Low Input Bias Current
l
Low Input Offset Voltage
l
Low Input Offset Current
l
Low Supply Current Drain
l
Output Compatible with TTL, MOS,
and CMOS
ABSOLUTE MAXIMUM RATINGS
Item
Power Supply Voltage
Input Differential Voltage Range
Input Common Mode Voltage Range
Output Short Circuit-to-Ground
Output Sink Current (1)
Power Dissipation @ 25^oC
Derate above 25^oC
Operating Ambient Temperature Range
Operating Junction Temperature
Storage Temperature Range
Symbol
V_CC
V_IDR
V
ICR
I_SC
I
Sink
P
D
1/R_θJA
T
A
T
J
T_S
Rating
+36 or +18
36
-0.3 to +36
Continuous
20
570
5.7
0 to 70
125
-65 to 150
Unit
V
V
V
mA
mW
mW/^oC
o_C
o_C
o_C
Notes:
1. The max. output current may be as high as 20 mA, independent of the magnitude of V_CC , output short circuits to
V_CC can cause excessive heating and eventual destruction.
2. At output switch point, V _O = 1.4 Vdc, R_S = 0 Ω with V_CC from 5.0 Vdc to 30 Vdc, and over the full input
common mode range (0V to V_CC = –1.5V).
3. Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant,
independent of the output state, therefore, no loading changes will exist on the input lines.
4. Input common mode of either input should not be permitted to go more than 0.3V negative of ground or minus
supply. The upper limit of common mode range is V_CC –1.5V.
5. Response time is specified with a 100mV step and 5.0mV of overdrive. With larger magnitudes of overdrive faster
response times are obtainable.
6. The comparator will exhibit proper output state if one of the inputs becomes greater than V_CC , the other input
must remain within the common mode range. The low input state must not be less than –0.3V of ground or minus
supply.
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