LM139.PDF

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Philips Semiconductors Military Linear Products
Product specification
Quad voltage comparator
LM139A/LM139
FEATURES
•
Wide single supply voltage range 2.0V DC
to 36V DC or dual supplies ± 1.0V DC to
±
APPLICATIONS
•
A/D converters
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.
18V DC
•
Wide range VCO
•
•
Very low supply current drain (0.8mA)
independent of supply voltage
(1.0mW/comparator at 5.0V DC )
MOS clock generator
•
High voltage logic gate
•
Multivibrators
•
Low input biasing current 25nA
•
Low input offset current and offset voltage
The LM139 series was designed to directly
interface with TTL and CMOS. When
operated from both plus and minus power
supplies, the LM139 series will directly
interface with MOS logic where their low
power drain is a distinct advantage over
standard comparators.
DESCRIPTION
The LM139 series consists of four
independent precision voltage comparators
with an offset voltage specification as low as
2.0mV max for each comparator which were
designed specifically to operate from a single
•
Input common-mode voltage range
includes ground
•
Differential input voltage range equal to the
power supply voltage
•
Low output 250mV at 4mA saturation
voltage
•
Output voltage compatible with TTL, DTL,
ECL, MOS and CMOS logic systems
ORDERING INFORMATION
DESCRIPTION
ORDER CODE
PACKAGE
DESIGNATOR*
14-Pin Ceramic DIP LM139/BCA GDIP1-T14
14-Pin Ceramic DIP LM139A/BCA GDIP1-T14
* MIL-STD 1835 or Appendix A of 1995 Military Data Handbook
ABSOLUTE MAXIMUM RATINGS 10
SYMBOL
PARAMETER
RATING
UNIT
V CC
Supply voltage
36 or ± 18
V
V DIFF
Differential input voltage
36
V
V IN
Input voltage
-0.3 to +36
V
P D
Power dissipation 1
900
mW
I SC
Output short circuit to ground 3
Continuous
I IN
Input current (V IN < -0.3V DC ) 4
50
mA
T STG
Storage temperature range
-65 to +150
° C
PIN CONFIGURATION
EQUIVALENT CIRCUIT (One Comparator Only)
V+
OUTPUT 2
1
14
13
12
OUTPUT 3
OUTPUT 4
GND
m
m
m
m
OUTPUT 1
2
V+
3
INPUT 1-
4
11
INPUT 4+
INPUT 1+
5
10
INPUT 4-
INPUT 2-
6
9
INPUT 3+
INPUT 2+
7
8
INPUT 3-
December 3, 1991
1
853-0280 04848
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Philips Semiconductors Military Linear Products
Product specification
Quad voltage comparator
LM139A/LM139
DC ELECTRICAL CHARACTERISTICS
V+ = +5V, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
T amb = +25
°
C
T amb = -55
C, +125
°
C
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
V IO
Input offset voltage 6
LM139A (only)
1.0
2.0
4.0
mV
V IO
Input offset voltage 6
LM139 (only)
2.0
5.0
9
mV
V ICR
Common mode voltage
range 7
0
V+ -1.5
0
V+ -2.0
V
V IDR
Differential input voltage 5
Keep all V IN . 0V
(or V- if need)
V+
V+
V
I IB
Input bias current 6
I IN(+) or I IN(-) with output in
linear range
25
100
300
nA
I IO
Input offset current
I IN(+) - I IN(-)
3.0
25
100
nA
I OL
Output sink current
V IN(-)
. 1V, V IN (+) = 0V,
V O 3 1.5V
6.0
16
4.0
mA
V IN(+)
.
1V, V IN (-) = 0V,
V O = 5V
0.1
nA
I OH
Output leakage current
V 3 30V
1.0
1.0
m A
I CC
Supply current
V+ = 30V, R L = 8
0.8
2.0
3.0
mA
A V
Voltage gain
R L = 15k W, V+ = 15V
50
200
25
V/mV
V OL
Saturation voltage
V IN(-) . 1V DC , V IN(+) = 0,
I SINK
3
4mA
250
400
700
mV
t LSR
Large signal response time
V IN = TTL logic swing,
V REF = 1.4V, V RL = 5V,
R L = 5.1k
300
ns
W
t R
Response time 9
V RL = 5V, R L = 5.1k W
1.3
m s
PSRR
Power supply rejection ratio
V+ = 5V to 30V – LM139
65
65
dB
PSRR
Power supply rejection ratio
V+ = 5V to 30V – LM139A
70
70
dB
, V+ = 30V
V CM = 0V to 28.5V
LM139 25 ° C
.
15k
W
65
dB
CMRR
Common mode rejection ratio
LM139 temp
V CM = 0V to 28V
65
dB
R L . 15k W , V+ = 30V
V CM = 0V to 28.5V
LM139A 25
70
dB
CMRR
Common mode rejection ratio
°
C
LM139A temp
V CM = 28.0V
70
dB
C max. junction temperature. The low power dissipation and the “On-Off” characteristics of the
outputs keep the chip dissipation very small (P D < 100mW), provided the output transistors are allowed to saturate.
3. Short circuits from the output to V+ can cause excessive heating and eventual destruction. The max. output current is approximately 20mA
independent of the magnitude of V+.
4. 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 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 -0.3V DC .
5. Positive excursions of input voltage may exceed the power supply level by 17V. 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 -0.3V DC (or
0.3V DC below the magnitude of the negative power supply, if used).
6. At output switch point, V O
°
-1.5V DC ).
7. 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, but either or both inputs can go to 30V DC without damage.
8. 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 output so no loading change exists on the reference or input lines.
9. The response time specified is for a 100mV input step with a 5mV overdrive. For larger overdrive signals, 300ns can be obtained. See
Typical Performance Characteristics section.
10. Operation beyond the limits of this table may impair the useful life of the device.
@
1.4V DC , R S = 100
W
with V+ from 5V DC to 30V DC ,
over the full input common-mode range (0V DC to V+
December 3, 1991
2
°
R L
NOTES:
1. Operation beyond the limits of this table may impair the useful life of the device.
2. The LM139/139A must be derated on a 150
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Philips Semiconductors Military Linear Products
Product specification
Quad voltage comparator
LM139A/LM139
TYPICAL APPLICATIONS
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December 3, 1991
3
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Philips Semiconductors Military Linear Products
Product specification
Quad voltage comparator
LM139A/LM139
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current
Input Current
1.0
T A = -55 ° C
80
V IN(CM) = 0V DC
R IN(CM) = 10k W
0.8
T A = 0 ° C
60
0.6
T A = +25 ° C
T A = -55 ° C
T A = +70 ° C
40
T A = 0 ° C
0.4
T A = +125 ° C
20
0.2
T A = +125 ° C
T A = +25 ° C
T A = +70 ° C
0
10
20
30
40
0
10
20
30
40
V+ –SUPPLY VOLTAGE– V DC
V+ –SUPPLY VOLTAGE– V DC
Output Saturation Voltage
Response Time for Various
Input Overdirves –
Negative Transition
10
OUT OF
SATURATION
1.0
T A = +125 ° C
0.1
T A = -55 ° C
0.01
T A = +25 ° C
0.001
0.01
0.1
1.0
10
100
I O –OUTPUT SINK CURRENT (mA)
TIME –
m
sec
Response Time for Various
Input Overdrives –
Positive Transition
TIME –
m
sec
December 3, 1991
4
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