LM339 datasheet(1/4 Pages) FCI | QUAD VOLTAGE COMPARATORS

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LM339 Quad Voltage Comparator

QUAD VOLTAGE COMPARATORS

These comparators are designed for use in level detection, low–level sensing and memory

applications in consumer automotive and industrial electronic applications.

FEATURES

l Single or dual supplies

l Low Input Bias Current - 25nA(Typ)

l Low Input Offset Voltage - +1.0mV(Typ)

l Low Input Offset Current - +5.0nA(Typ)

l Input common-mode voltage range to GND

l Output Compatible with TTL, MOS,

and CMOS

l Low output saturation voltage - 130mV(Typ)

@ 4.0mA

PIN ARRANGEMENT

14 SOP LM339CS

14 DIP LM339CD

ABSOLUTE MAXIMUM RATINGS

Power Supply Voltage

+36 or +18

Input Differential Voltage Range

IDR

Input Common Mode Voltage Range

ICR

-0.3 to +36

Output Short Circuit-to-Ground

Continuous

Power Dissipation @ 25oCP

1.0

Derate above 25oC

8.0

mW/oC

Operating Ambient Temperature Range

0 to 70

Storage Temperature Range

-65 to 150

Item

Symbol

Rating

Unit

Notes: 1. The max. output current may be as high as 20 mA, independent of the magnitude of V

CC , output short circuits to

CC can cause excessive heating and eventual destruction.

2. This magnitude of input current will only occur if the leads are driven more negative than ground or the negative

supply voltage. This is due to the input PNP collector base junction becooming forward biased, acting as an input

clamp diode. There is also a lateral PNP parasitic transistor action which can cause the output voltage of the

comparators to go to the V

CC voltage level (or ground if overdrive is large) during the time that an input is driven

negative. This will not destroy the device when limited to the max rating and normal output states will recover

when inputs become > ground or negative supply.

3. At output switch point, V

O = 1.4 Vdc, RS = 100 Ω with VCC from 5.0 Vdc to 30 Vdc, and over the full input

common mode range (0V to V

CC = –1.5V).

4. 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.

5. Response time is specified with a 100mV step and 5.0mV of overdrive. For larger signals, 300ns is typical.

6. Positive excursions of input voltage may exceed the power supply level. As long as one of the inputs remain within

the common-mode range, the comparator will provide the proper output state.

5-3

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