LM393 Datasheet, PDF (1/3 Pages) Motorola, Inc – SINGLE SUPPLY, LOW POWER DUAL COMPARATORS

Dual Differential Comparators
LM393
General Description
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 de-
signed specifically to operate from a single power supply
n Reduced V_OS drift over temperature
n Eliminates need for dual supplies
n Allows sensing near ground
n Compatible with all forms of logic
n Power drain suitable for battery operation
over a wide range of voltages. Operation from split power
supplies is also possible and the low power supply current Features
drain is independent of the magnitude of the power supply _{n Wide supply}
voltage. These comparators also have a unique characteris-
— Voltage range:
2.0V to 36V
tic in that the input common-mode voltage range includes
— single or dual supplies:
±1.0V to ±18V
ground, even though operated from a single power supply
voltage.
n Very low supply current drain (0.4 mA) — independent
of supply voltage
Application areas include limit comparators, simple analog to _{n Low input biasing current:}
25 nA
digital converters; pulse, squarewave and time delay gen-
erators; wide range VCO; MOS clock timers; multivibrators
and high voltage digital logic gates. The LM393 was
n Low input offset current:
n Maximum offset voltage:
±5 nA
±9m V
designed to directly interface with TTL and CMOS. When op- ^{n Input common-mode voltage range includes ground}
erated from both plus and minus power supplies, the _WS393MX ^{n Differential input voltage range equal to the power}
will directly interface with MOS logic where their low
supply voltage
power drain is a distinct advantage over standard compara- ^{n Low output saturation voltage,:}
150 ^{mV at 4 mA}
tors.
n Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Advantages
n High precision comparators
Pin Configuration
DIP-8 ^LM393N
SOP-8 LM393M
Wing Shing Computer Components Co., (H.K.)Ltd.
Tel:[phone] Fax:[phone]
1
Homepage: http://www.wingshing.com
E-mail: [e-mail]