Voltage Comparators. LM239A Datasheet

LM239A Comparators. Datasheet pdf. Equivalent

Part LM239A
Description Voltage Comparators
Feature m Voltage Comparators LM13.A/LM239A/LM33,A low offset voltage quad comparators general descriptio.
Manufacture National Semiconductor
Datasheet
Download LM239A Datasheet

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LM239A
m
Voltage Comparators
LM13.A/LM239A/LM33,A low offset voltage
quad comparators
general description
The LM1~9A series consists of four independent
precision voltage comparators with an offset volt-
age specification of 2 mV. max. for all four
comparators which 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 draiA 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 LM 1~9A series was designed to
directly interface with TTL and CMOS. When
operated from both plus and minus power supplies,
the LM~~9A will directly interface with MOS
logic-where the low power drain of the LM~~9A
is a distinct advantage over standard comparators.
advantages
• High precision comparators
• Reduced Vos drift over temperature
• Eliminates need for dual supplies
• Allows sensing near GND
• Compatible with all forms of logic
• Power drain suitable for battery operation
features
• Wide single supply
Voltage range
or dual supplies
2 Vee to 36 Vee
±1 Vee to ±18 Voe
• Very low supply current drain (0.8 mA)-
independent of supply voltage (1 mW/com·
parator at +5 Veel
• Low input biasing current
35 nA
• Low input offset current
and maximum offset voltage
3 nA
2 mV
• Input common·mode voltage range includes
ground
• Differential input voltage range equal to the
power supply voltage
• Low output
saturation voltage
1 mV at 5/JA
70 mV at 1 mA
• Output voltage compatible with TTL, DTL,
ECL, MOS and CMOS logic systems
schematic and connection diagrams
v'
Dual·ln·Line and Flat Package
,.OUTPUT J OUTPUT 4
GNO
INPUT 4+ INPUT q~
INI'UT3-
OUTPUT
typical applications (v+ = 5.0 Veel
+5 Vile
v'
OUTPUT2 OUTPUT 1
INPUT 1-
INPUT 2- INPUT 2+
TOP VIEW
Order Number LM139AF
See Package 4
'Order Number LMI39AD, LM239AOorLlllt339AD
See Package 1
Order Number LM339AN
See Package 22
+iVac
1-34
Basic Comparator
Driving CMQ!l
Driving TTL



LM239A
absolute maximum ratings
v+Supply Voltage,
36 Voc or tIS Voc
Differential Input Voltage
36VOC
Input Voltage
-0.3 VOC to +36 VOC
Power Dissipation (Note 1)
Molded DIP (LM339AN)
570mW
Cavity DIP (LM139AO, LM238AO,
and LM339AO)
900mW
Flat Pack (LMl38AF)
SOOmW
Output Short·Circuit to GNO (Note 2)
Continuous
Input Current (VIN < -0.3 VOC) (Note 3)
SOmA
Operating Temperature Range
LM339A
O"c to +70"C
LM239A
-26"Cto+86"C
LM139A
~·Cto+126"C
Storage Temperature Range
~·Cto+1SO·C
Lead Temperature (Soldering, 10 seconds)
300"c
electrical characteristics (v+ = +5.0 Vee, see Note 4)
PARAMETER
CONDITIONS
Input Offset Voltage
Input BIas Current (Note 5)
Input Offset Current
Input Common-Mode Voltage
Range (Note 61
Supply Current
Voltage Gam
Large Signal Response Time
Response Time (Note 7)
Output Smk Current
Saturation Voltage
Output Leakage Current
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Common-Mode Voltage
Range
Saturation Voltage
Output Leakage Current
Differential Input Voltage
INoteS)
TA '" +2SoC (Note 9)
IIN!+l or IINC-I With Output In
Linear Range, T A .. +2S'C
IIN(+) -IINI_l. TA = +2SoC
TA '" +25°C
RL = oo,on all Comparators
TA=+2SoC
RL ~ 16kn, TA "'+25°C.
V+ == 15 Voe (To Support
Large Vo SWing)
VIN '" TTL LogiC Swmg, V REF '"
+1.4 Voe, VR L '" 5 V oe • RL '"
6 1 kn and TA'"" +2SoC
VRl =SVoc and RL =51 kfl,
TA '" +2SoC
V tNH 2 +1 Voe. V1N(+1 =0.
and Vo S;:+1.5 Voe. TA :c +2SoC
VtNH ~+1 Vae. V1N(+1 '" 0,
, and 'SINK s;: 4 rnA. TA '" +25°C
V1N(+1 ~ +1 Voe. V1NH '" 0
andVO =5 Voc. TA =+2SoC'
(Note 9)
IIN(+)-IINH
IINt+) or liN 1_) With Output In
Linear Range
V1NH :;::: +1 Voc. V1N(+1 '" 0
and ISINK s;: 4 rnA
VINI+I ~ +1 Voe. V 1NH '" 0
and Vo - 30 Voc
Keep all VIN'S ~O Voc (or V-,If
used)
LMI39A
MIN TVP MAX
'1 ±20
25 '00
'3 ±25
0 V+-15
OS 2.0
50 200
300
13
60 '6
250 500
0'
40
±100
300
0 V+-20
700
,0
V+
LM239A. LM339A
MIN TVP MAX
±, ±2.0
25 250
±5 ±50
0 V+-l.5
OS 2.0
50 200
300
'3
60 '6
250 500
0'
40
±150
400
0 V+-2.0
700
'0
v+
UNITS
mVDC
nAoe
nAoe
Voe
mAce
VlmV
ns
;
I'S
mADe
mVoc
nAoc
mVoc
nAoe
nAoc
Voc
mVoc
/JADe
Voc
Note 1: For operating at hl~ temperatures, the LM339A must be derated based on a +125°C maximum Junction temperature and a thermal resistance
of +175"CIW which applies for the device soldered In a printed, circuit board. operating In a stili al( ambient The LM239A and LM139A must be derated
based on a +15O"C maxunum Junction temperature The low bias diSSipation and the ON-OFF charactenstlc of the outputs keeps the chip diSSipation very
small (Pd ~ 100 mW). prOVided the output transistors are allowed to saturate
'
Not. 2: Short Cll'<:UltS from the output to V+ can cause excessive heating and eventual destructIOn The maximum output current IS approximately 20 mA
Independent of the Illf9mtude,of v+
Note 3: ThiS input current Will only eXist when the voltage at any of the Input leads IS dnven negative It IS due to the collector-base Junction of the Input PNP
tranSIstors becommg forward biased and thereby acting as Input diode clamps In additIOn to th1s 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 overdrtve)
for the time duration that an Input IS driven negative Thill 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 VOC'
Note 4: These specifications apply for v+ = +5 Voc and -5SoC ::;;. TA ~ +125°C. unless otherwise stated With the LM239A all temperature specifications
ere limited to _25°C ~ TA S; +8SoC and the LM339A temperature speCifications are limited to DoC::;;' TA ::;;. +70°C
Not. 6. The direction of the mput 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 hnes
Note 6:' The Input common-mode voltage or either Input Signal voltage should not be allowed to go negative by more than O.3V The upper end of the
common-mode voltage range IS V+ -1.5V. but either or both Inputs can go to +30 VOC Without damage
'
Note 7: The response tll'l1e speCified IS for a 100 mV Input step With 5 mV overdnve For larger overdrive Signals 300 ns can be obtained. see tyPical
performance characteristics section
Note 8. If the voltage applied to any Input exceeds V+. all four comparator outputs Will go to the high voltage level The low Input voltage state must not
be less than -0.3 Voe (or 0.3 VOC below the magn=tude of the negative power supply. If used)
Note I: At output SWItch point. VOai 1 4 Voe. RS"O{lwlth V+ from 5VOC to30VOC. andover the full Input common mode range IOVoCto V+ -,.SVOC)
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