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a73WIDESINGLESUPPLYVOLTAGERANGE
ORDUALSUPPLIES+2VTO+36VOR±1V
TO±18V
a73VERYLOWSUPPLYCURRENT(0.4mA)
INDEPENDENTOFSUPPLYVOLTAGE
(1mW/comparatorat+5V)
a73LOWINPUTBIASCURRENT:25nATYP
a73LOWINPUTOFFSETCURRENT:±5nATYP
a73INPUTCOMMON-MODEVOLTAGERANGE
INCLUDESGROUND
a73LOWOUTPUTSATURATIONVOLTAGE:
250mVTYP.(I
O
=4mA)
a73DIFFERENTIALINPUTVOLTAGERANGE
EQUALTOTHESUPPLYVOLTAGE
a73TTL,DTL,ECL,MOS,CMOSCOMPATIBLE
OUTPUTS
DESCRIPTION
Thisdeviceconsistsoftwoindependentlow
powervoltagecomparatorsdesignedspecifically
tooperatefromasinglesupplyoverawiderange
ofvoltages.Operationfromsplitpowersuppliesis
alsopossible.
Thesecomparatorsalsohaveaunique
characteristicinthattheinputcommon-mode
voltagerangeincludesgroundeventhough
operatedfromasinglepowersupplyvoltage.
ORDERCODE
N=DualinLinePackage(DIP)
D=SmallOutlinePackage(SO)-alsoavailableinTape&Reel(DT)
P=ThinShrinkSmallOutlinePackage(TSSOP)-onlyavailable
inTape&Reel(PT)
PINCONNECTIONS(topview)
Part
Number
Temperature
Range
Package
NDP
LM2903-40°C,+125°C???
N
DIP8
(PlasticPackage)
D
SO8
(PlasticMicropackage)
P
TSSOP8
(ThinShrinkSmallOutlinePackage)
LM2903
LOWPOWERDUALVOLTAGECOMPARATORS
June2003
LM2903
2/9
SCHEMATICDIAGRAM(1/2LM2903)
ABSOLUTEMAXIMUMRATINGS
OPERATINGCONDITIONS
VCC-VCC-
VCC+
VCC-
3.5μA100μA3.5μA100μA
Vo
Non-Inverting
Inverting
Input
Input
SymbolParameterValueUnit
V
CC
SupplyVoltage±18to36V
V
ID
DifferentialInputVoltage±36V
V
I
InputVoltage-0.3to+36V
OutputShort-circuittoGround
1)
Infinite
P
d
PowerDissipation
2)
DIP8
SO8
TSSOP8
1250
710
625
mW
T
Junction
JunctionTemperature+150°C
T
stg
StorageTemperatureRange-65to+150°C
1.Short-circuitfromtheoutputtoV
cc
+
cancauseexcessiveheatingandeventualdestruction.Themaximumoutputcurrentisapproximately20mA,
independentofthemagnitudeofV
cc
+
2.PdiscalculatedwithT
amb
=+25°C,T
j
=+150°CandR
thja
=100°C/WforDIP8package
=175°C/WforSO8package
=200°C/WforTSSOP8package
SymbolParameterValueUnit
V
icm
CommonModeInputVoltageRange0toV
CC
+
-1.5V
T
oper
OperatingFree-AirTemperaturerange-40to+125°C
LM2903
3/9
ELECTRICALCHARACTERISTICS
V
CC
+
=5V,V
cc
-
=GND,T
amb
=25°C(unlessotherwisespecified)
SymbolParameterMin.Typ.Max.Unit
V
IO
InputOffsetVoltage
1)
T
amb
=+25°C
T
min
≤T
amb
≤T
max.
1.Atoutputswitchpoint,V
O
≈1.4V,R
S
=0?withV
CC
+
from5Vto30V,andoverthefullinputcommon-moderange(0VtoV
CC
+
–1.5V).
17
15
mV
I
IO
InputOffsetCurrent
T
amb
=+25°C
T
min
≤T
amb
≤T
max.
550
150
nA
I
IB
InputBiasCurrent
2)
T
amb
=+25°C
T
min
≤T
amb
≤T
max.
2.ThedirectionoftheinputcurrentisoutoftheICduetothePNPinputstage.Thiscurrentisessentiallyconstant,independentofthestateofthe
output,sonoloadingchargeexistsonthereferenceofinputlines
25250
400
nA
A
VD
LargeSignalVoltageGain(V
cc
=15V,R
L
=15k?,V
o
=1to11V)25200V/mV
I
CC
SupplyCurrent(allcomparators)
V
CC
=5V,noload
V
CC
=30V,noload
0.4
1
1
2.5
mA
V
ICM
InputCommonModeVoltageRange(V
cc
=30V)
3)
T
amb
=+25°C
T
min
≤T
amb
≤T
max.
3.Theinputcommon-modevoltageofeitherinputsignalvoltageshouldnotbeallowedtogonegativebymorethan0.3V.Theupperendofthe
common-modevoltagerangeisV
CC
+
–1.5V,buteitherorbothinputscangoto+30Vwithoutdamage.
0
0
V
CC
+
-1.5
V
CC
+
-2
V
V
IDDifferentialInputVoltage
4)
4.Positiveexcursionsofinputvoltagemayexceedthepowersupplylevel.Aslongastheothervoltageremainswithinthecommon-moderange,the
comparatorwillprovideaproperoutputstate.
Thelowinputvoltagestatemustnotbelessthan–0.3V(or0.3Vbelowthenegativepowersupply,ifused)
V
CC
+
V
V
OL
LowLevelOutputVoltage(V
id
=-1V,I
sink
=4mA)
T
amb
=+25°C
T
min
≤T
amb
≤T
max
250400
700
mV
I
OH
HighLevelOutputCurrent(V
CC
=V
o
=30V,V
id
=1V)
T
amb
=+25°C
T
min
≤T
amb
≤T
max
0.1
1
nA
μA
I
SINK
OutputSinkCurrent(V
id
=-1V,V
o
=1.5V)
616mΑ
t
RE
SmallSignalResponseTime
5)
(R
L
=5.1k?toV
CC
+
)
5.Theresponsetimespecifiedisfora100mVinputstepwith5mVoverdrive.
1.3μs
t
REL
LargeSignalResponseTime
6)
TTLInput(V
ref
=+1.4V,R
L
=5.1k?toV
CC
+
)
OutputSignalat50%offinalvalue
OutputSignalat95%offinalvalue
6.Maximumvaluesareguaranteedbydesign&evaluation.
500
1
ns
μs
LM2903
4/9
SUPPLYCURRENTversusSUPPLYVOLTAGE
INPUTCURRENTversusSUPPLYVOLTAGE
OUTPUTSATURATIONVOLTAGEversus
OUTPUTCURRENT
RESPONSETIMEFORVARIOUSINPUT
OVERDRIVES-NEGATIVETRANSITION
RESPONSETIMEFORVARIOUSINPUT
OVERDRIVES-POSITIVETRANSITION
LM2903
5/9
TYPICALAPPLICATIONS
BASICCOMPARATOR
DRIVINGCMOS
DRIVINGTTL
LOWFREQUENCYOPAMP
LOWFREQUENCYOPAMP
TRANSDUCERAMPLIFIER
LM2903
6/9
LOWFREQUENCYOPAMPWITHOFFSET
ADJUST
ZEROCROSSINGDETECTOR
(singlepowersupply)
TWO-DECADEHIGH-FREQUENCYVCO
LIMITCOMPARATOR
SPLIT-SUPPLYAPPLICATIONS
ZEROCROSSINGDETECTOR
CRYSTALCONTROLLEDOSCILLATOR
COMPARATORWITHANEGATIVE
REFERENCE
LM2903
7/9
PACKAGEMECHANICALDATA
DIM.
mm.inch
MIN.TYPMAX.MIN.TYP.MAX.
A3.30.130
a10.70.028
B1.391.650.0550.065
B10.911.040.0360.041
b0.50.020
b10.380.50.0150.020
D9.80.386
E8.80.346
e2.540.100
e37.620.300
e47.620.300
F7.10.280
I4.80.189
L3.30.130
Z0.441.60.0170.063
PlasticDIP-8MECHANICALDATA
P001F
LM2903
8/9
PACKAGEMECHANICALDATA
DIM.
mm.inch
MIN.TYPMAX.MIN.TYP.MAX.
A1.351.750.0530.069
A10.100.250.040.010
A21.101.650.0430.065
B0.330.510.0130.020
C0.190.250.0070.010
D4.805.000.1890.197
E3.804.000.1500.157
e1.270.050
H5.806.200.2280.244
h0.250.500.0100.020
L0.401.270.0160.050
k?(max.)
ddd0.10.04
SO-8MECHANICALDATA
0016023/C
8
LM2903
9/9
PACKAGEMECHANICALDATA
DIM.
mm.inch
MIN.TYPMAX.MIN.TYP.MAX.
A1.20.047
A10.050.150.0020.006
A20.801.001.050.0310.0390.041
b0.190.300.0070.012
c0.090.200.0040.008
D2.903.003.100.1140.1180.122
E6.206.406.600.2440.2520.260
E14.304.404.500.1690.1730.177
e0.650.0256
K0?8?0?8?
L0.450.600.750.0180.0240.030
L110.039
TSSOP8MECHANICALDATA
0079397/D
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consequencesofuseofsuchinformationnorforanyinfringementofpatentsorotherrightsofthirdpartieswhichmayresultfrom
itsuse.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofSTMicroelectronics.Specifications
mentionedinthispublicationaresubjecttochangewithoutnotice.Thispublicationsupersedesandreplacesallinformation
previouslysupplied.STMicroelectronicsproductsarenotauthorizedforuseascriticalcomponentsinlifesupportdevicesor
systemswithoutexpresswrittenapprovalofSTMicroelectronics.
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?2003STMicroelectronics-AllRightsReserved
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