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LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators
August 2000
LM139/LM239/LM339/LM2901/LM3302
Low Power Low Offset Voltage Quad Comparators
General Description
The LM139 series consists of four independent precision
voltage comparators with an offset voltage specification as
low as 2 mV max for all four comparators. These were
designed specifically to operate from a single power supply
over a wide range of voltages. Operation 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.
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. The
LM139 series was designed to directly interface with TTL
and CMOS. When operated from both plus and minus power
supplies, they will directly interface with MOS logic — where
the low power drain of the LM339 is a distinct advantage
over standard comparators.
Features
n
Wide supply voltage range
n
LM139/139A Series 2 to 36 V
DC
or
±
1to
±
18 V
DC
n
LM2901: 2 to 36 V
DC
or
±
1to
±
18 V
DC
n
LM3302: 2 to 28 V
DC
or
±
1to
±
14 V
DC
n
Very low supply current drain (0.8 mA) — independent
of supply voltage
n
Low input biasing current:
25 nA
n
Low input offset current:
±
5nA
n
Offset voltage:
±
3mV
n
Input common-mode voltage range includes GND
n
Differential input voltage range equal to the power
supply voltage
n
Low output saturation voltage: 250 mV at 4 mA
n
Output voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Advantages
n
High precision comparators
n
Reduced V
OS
drift over temperature
n
Eliminates need for dual supplies
n
Allows sensing near GND
n
Compatible with all forms of logic
n
Power drain suitable for battery operation
One-Shot Multivibrator with Input Lock Out
DS005706-12
© 2001 National Semiconductor Corporation
DS005706
www.national.com
Absolute Maximum Ratings
(Note 10)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
LM139/LM239/LM339
LM139A/LM239A/LM339A
LM3302
LM2901
Supply Voltage, V
+
36 V
DC
or
±
18 V
DC
28 V
DC
or
±
14 V
DC
Differential Input Voltage (Note 8)
36 V
DC
28 V
DC
Input Voltage
−0.3 V
DC
to +36 V
DC
−0.3 V
DC
to +28 V
DC
Input Current (V
IN
<
−0.3 V
DC
),
(Note 3)
50 mA
50 mA
Power Dissipation (Note 1)
Molded DIP
1050 mW
1050 mW
Cavity DIP
1190 mW
Small Outline Package
760 mW
Output Short-Circuit to GND,
(Note 2)
Continuous
Continuous
Storage Temperature Range
−65˚C to +150˚C
−65˚C to +150˚C
Lead Temperature
(Soldering, 10 seconds)
260˚C
260˚C
Operating Temperature Range
−40˚C to +85˚C
LM339/LM339A
0˚C to +70˚C
LM239/LM239A
−25˚C to +85˚C
LM2901
−40˚C to +85˚C
LM139/LM139A
−55˚C to +125˚C
Soldering Information
Dual-In-Line Package
Soldering (10 seconds)
260˚C
260˚C
Small Outline Package
Vapor Phase (60 seconds) 215˚C 215˚C
Infrared (15 seconds) 220˚C 220˚C
See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount
devices.
ESD rating (1.5 k
W
in series with 100 pF)
600V
600V
Electrical Characteristics
(V
+
=5 V
DC
,T
A
= 25˚C, unless otherwise stated)
Parameter
Conditions
LM139A
LM239A, LM339A
LM139
Units
Min Typ Max Min Typ Max Min Typ Max
Input Offset Voltage
(Note 9)
1.0
2.0
1.0
2.0
2.0
5.0
mV
DC
Input Bias Current
I
IN(+)
or I
IN(−)
with Output in
25 100
25
250
25 100
nA
DC
Linear Range, (Note 5), V
CM
=0V
Input Offset Current
I
IN(+)
−I
IN(−)
,V
CM
=0V
3.0
25
5.0
50
3.0
25
nA
DC
Input Common-Mode
V
+
=30 V
DC
(LM3302,
0
V
+
−1.5
0
V
+
−1.5
0
V
+
−1.5 V
DC
Voltage Range
V
+
=28 V
DC
) (Note 6)
Supply Current
R
L
=
¥
on all Comparators,
0.8
2.0
0.8
2.0
0.8
2.0
mA
DC
R
L
=
¥
,V
+
=36V,
1.0
2.5
1.0
2.5
mA
DC
(LM3302, V
+
=28 V
DC
)
Voltage Gain
R
L
³
15 k
W
,V
+
=15 V
DC
50 200
50
200
50 200
V/mV
V
o
=1V
DC
to 11 V
DC
Large Signal
V
IN
=TTL Logic Swing, V
REF
=
300
300
300
ns
Response Time
1.4 V
DC
,V
RL
=5 V
DC
,
R
L
=5.1 k
W
Response Time
V
RL
=5 V
DC
,R
L
=5.1 k
W
,
1.3
1.3
1.3
µs
(Note 7)
www.national.com
2
Electrical Characteristics
(Continued)
(V
+
=5 V
DC
,T
A
= 25˚C, unless otherwise stated)
Parameter
Conditions
LM139A
LM239A, LM339A
LM139
Units
Min Typ Max Min Typ Max Min Typ Max
Output Sink Current
V
IN(−)
=1 V
DC
,V
IN(+)
=0,
6.0 16
6.0
16
6.0 16
mA
DC
V
O
£
1.5 V
DC
Saturation Voltage
V
IN(−)
=1 V
DC
,V
IN(+)
=0,
250 400
250 400
250 400
mV
DC
I
SINK
£
4mA
Output Leakage
V
IN(+)
=1 V
DC
,V
IN(−)
=0,
0.1
0.1
0.1
nA
DC
Current
V
O
=5 V
DC
Electrical Characteristics
(V
+
=5 V
DC
,T
A
= 25˚C, unless otherwise stated)
Parameter
Conditions
LM239, LM339
LM2901
LM3302
Units
Min Typ Max Min Typ Max Min Typ Max
Input Offset Voltage
(Note 9)
2.0
5.0
2.0
7.0
3
20
mV
DC
Input Bias Current
I
IN(+)
or I
IN(−)
with Output in
25
250
25 250
25 500
nA
DC
Linear Range, (Note 5), V
CM
=0V
Input Offset Current
I
IN(+)
−I
IN(−)
,V
CM
=0V
5.0
50
5
50
3
100
nA
DC
Input Common-Mode
V
+
=30 V
DC
(LM3302,
0
V
+
−1.5
0
V
+
−1.5
0
V
+
−1.5 V
DC
Voltage Range
V
+
=28 V
DC
) (Note 6)
Supply Current
R
L
=
¥
on all Comparators,
0.8
2.0
0.8
2.0
0.8
2.0
mA
DC
R
L
=
¥
,V
+
=36V,
1.0
2.5
1.0
2.5
1.0
2.5
mA
DC
(LM3302, V
+
=28 V
DC
)
Voltage Gain
R
L
³
15 k
W
,V
+
=15 V
DC
50
200
25 100
2
30
V/mV
V
o
=1V
DC
to 11 V
DC
Large Signal
V
IN
=TTL Logic Swing, V
REF
=
300
300
300
ns
Response Time
1.4 V
DC
,V
RL
=5 V
DC
,
R
L
=5.1 k
W
,
Response Time
V
RL
=5 V
DC
,R
L
=5.1 k
W
,
1.3
1.3
1.3
µs
(Note 7)
Output Sink Current
V
IN(−)
=1 V
DC
,V
IN(+)
=0,
6.0
16
6.0 16
6.0 16
mA
DC
V
O
£
1.5 V
DC
Saturation Voltage
V
IN(−)
=1 V
DC
,V
IN(+)
=0,
250 400
250 400
250 500
mV
DC
I
SINK
£
4mA
Output Leakage
V
IN(+)
=1 V
DC
,V
IN(−)
=0,
0.1
0.1
0.1
nA
DC
Current
V
O
=5 V
DC
Electrical Characteristics
(V
+
Parameter
Conditions
LM139A
LM239A,
LM339A
LM139
Units
Min Typ Max Min Typ Max Min Typ Max
Input Offset Voltage
(Note 9)
4.0
4.0
9.0 mV
DC
Input Offset Current
I
IN(+)
−I
IN(−)
,V
CM
=0V
100
150
100 nA
DC
Input Bias Current
I
IN(+)
or I
IN(−)
with Output in
300
400
300 nA
DC
Linear Range, V
CM
=0V (Note 5)
Input Common-Mode
V
+
=30 V
DC
(LM3302,
0
V
+
−2.0
0
V
+
−2.0 0
V
+
−2.0 V
DC
Voltage Range
V
+
=28 V
DC
) (Note 6)
Saturation Voltage
V
IN(−)
=1 V
DC
,V
IN(+)
=0,
700
700
700 mV
DC
I
SINK
£
4mA
3
www.national.com
= 5.0 V
DC
, (Note 4))
Electrical Characteristics
(Continued)
(V
+
Parameter
Conditions
LM139A
LM239A,
LM339A
LM139
Units
Min Typ Max Min Typ Max Min Typ Max
Output Leakage Current
V
IN(+)=
1V
DC
,V
IN(−)
=0,
1.0
1.0
1.0
µA
DC
V
O
=30 V
DC
, (LM3302,
V
O
=28 V
DC
)
Differential Input Voltage
Keep all V
IN
’s
³
0V
DC
(or V
−
,
36
36
36
V
DC
if used), (Note 8)
Electrical Characteristics
(V
+
Conditions
LM239, LM339
LM2901
LM3302
Units
Min Typ Max Min Typ Max Min Typ Max
Input Offset Voltage
(Note 9)
9.0
9
15
40
mV
DC
Input Offset Current
I
IN(+)
−I
IN(−)
,V
CM
=0V
150
50
200
300
nA
DC
Input Bias Current
I
IN(+)
or I
IN(−)
with Output in
400
200
500
1000 nA
DC
Linear Range, V
CM
=0V (Note
5)
Input Common-Mode
V
+
=30 V
DC
(LM3302, V
+
=28
V
DC
)
V
+
−2.0 0
V
+
−2.0 0
V
+
−2.0 V
DC
Voltage Range
(Note 6)
Saturation Voltage
V
IN(−)
=1 V
DC
,V
IN(+)
=0,
700
400
700
700
mV
DC
I
SINK
£
4mA
Output Leakage Current V
IN(+)=
1V
DC
,V
IN(−)
=0,
1.0
1.0
1.0
µA
DC
V
O
=30 V
DC
, (LM3302, V
O
=28
V
DC
)
Differential Input Voltage Keep all V
IN
’s
³
0V
DC
(or V
−
,
36
36
28
V
DC
100 mW), provided the output transistors are allowed to saturate.
Note 2:
Short circuits from the output to V
+
can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output
current is approximately 20 mA independent of the magnitude of V
+
.
Note 3:
This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP
transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action
on the IC chip. This transistor action can cause the output voltages of the comparators to go to the V
+
voltage level (or to ground for a large overdrive) for the time
duration that an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns
to a value greater than −0.3 V
DC
(at 25˚)C.
Note 4:
These specifications are limited to −55˚C
£
T
A
£
+125˚C, for the LM139/LM139A. With the LM239/LM239A, all temperature specifications are limited to
+85˚C.
Note 5:
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the outputso
no loading change exists on the reference or input lines.
Note 6:
The input common-mode voltage or either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode
voltage range is V
+
−1.5V at 25˚C, but either or both inputs can go to +30 V
DC
without damage (25V for LM3302), independent of the magnitude of V
+
.
Note 7:
The response time specified is a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be obtained, see typical performance
characteristics section.
Note 8:
Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the
comparator will provide a proper output state. The low input voltage state must not be less than −0.3 V
DC
(or 0.3 V
DC
below the magnitude of the negative power
supply, if used) (at 25˚C).
Note 9:
At output switch point, V
O
.
1.4 V
DC
,R
S
=0
T
A
+85˚C, the LM339/LM339A temperature specifications are limited to 0˚C
£
T
A
£
+70˚C, and the LM2901, LM3302 temperature range is −40˚C
£
T
A
£
W
with V
+
from 5 V
DC
to 30 V
DC
; and over the full input common-mode range (0 V
DC
to V
+
−1.5 V
DC
), at 25˚C.
For LM3302, V
+
from 5 V
DC
to 28 V
DC
.
Note 10:
Refer to RETS139AX for LM139A military specifications and to RETS139X for LM139 military specifications.
www.national.com
4
= 5.0 V
DC
, (Note 4))
= 5.0 V
DC
, (Note 4))
Parameter
if used), (Note 8)
Note 1:
For operating at high temperatures, the LM339/LM339A, LM2901, LM3302 must be derated based on a 125˚C maximum junction temperature and a
thermal resistance of 95˚C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The LM239 and LM139 must be derated
based on a 150˚C maximum junction temperature. The low bias dissipation and the “ON-OFF” characteristic of the outputs keeps the chip dissipation very small
(P
D
£
−25˚C
£
£
Typical Performance Characteristics
LM139/LM239/LM339, LM139A/LM239A/LM339A, LM3302
Supply Current
Input Current
Output Saturation Voltage
DS005706-34
DS005706-35
DS005706-36
Response Time for Various
Input Overdrives — Negative
Transition
Response Time for Various
Input Overdrives — Positive
Transition
DS005706-37
DS005706-38
Typical Performance Characteristics
LM2901
Supply Current
Input Current
Output Saturation Voltage
DS005706-39
DS005706-40
DS005706-41
5
www.national.com
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