LM193/LM293/LM393/LM2903
Low Power Low Offset Voltage Dual Comparators
General Description
The LM193 series consists of two independent precision
voltage comparators with an offset voltage specification as
low as 2.0 mV max for two comparators which were de-
signed 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 characteris-
tic 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 gen-
erators; wide range VCO; MOS clock timers; multivibrators
and high voltage digital logic gates. The LM193 series was
designed to directly interface with TTL and CMOS. When
operated from both plus and minus power supplies, the
LM193 series will directly interface with MOS logic where
their low power drain is a distinct advantage over standard
comparators.
The LM393 and LM2903 parts are available in National’s
innovative thin micro SMD package with 8 (12 mil) large
bumps.
Advantages
nHigh precision comparators
nReduced V
OS
drift over temperature
nEliminates need for dual supplies
nAllows sensing near ground
nCompatible with all forms of logic
nPower drain suitable for battery operation
Features
nWide supply
— Voltage range: 2.0V to 36V
— Single or dual supplies: ±1.0V to ±18V
nVery low supply current drain (0.4 mA) — independent
of supply voltage
nLow input biasing current: 25 nA
nLow input offset current: ±5nA
nMaximum offset voltage: ±3mV
nInput common-mode voltage range includes ground
nDifferential input voltage range equal to the power
supply voltage
nLow output saturation voltage,: 250 mV at 4 mA
nOutput voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
nAvailable in the 8-Bump (12 mil) micro SMD package
nSee AN-1112 for micro SMD considerations
Squarewave Oscillator Non-Inverting Comparator with Hysteresis
00570938
00570909
July 2002
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators
© 2002 National Semiconductor Corporation DS005709 www.national.com
Schematic and Connection Diagrams
00570902
Metal Can Package Dual-In-Line/SOIC Package
00570903
00570901
micro SMD micro SMD Marking
00570945
Top View 00570946
Top View
LM193/LM293/LM393/LM2903
www.national.com 2
Absolute Maximum Ratings (Note 10)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage, V
+
36V
Differential Input Voltage (Note 8) 36V
Input Voltage −0.3V to +36V
Input Current (V
IN
<−0.3V) (Note 3) 50 mA
Power Dissipation (Note 1)
Molded DIP 780 mW
Metal Can 660 mW
Small Outline Package 510 mW
micro SMD Pacakge 568mW
Output Short-Circuit to Ground
(Note 2) Continuous
Operating Temperature Range
LM393 0˚C to +70˚C
LM293 −25˚C to +85˚C
LM193/LM193A −55˚C to +125˚C
LM2903 −40˚C to +85˚C
Storage Temperature Range −65˚C to +150˚C
Lead Temperature
(Soldering, 10 seconds) +260˚C
Soldering Information
Dual-In-Line Package
Soldering (10 seconds) 260˚C
Small Outline Package 215˚C
Vapor Phase (60 seconds)
Infrared (15 seconds) 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 kΩin series with 100 pF) 1300V
Electrical Characteristics
(V
+
=5V, T
A
= 25˚C, unless otherwise stated)
Parameter Conditions LM193A Units
Min Typ Max
Input Offset Voltage (Note 9) 1.0 2.0 mV
Input Bias Current I
IN
(+) or I
IN
(−) with Output In Linear 25 100 nA
Range, V
CM
= 0V (Note 5)
Input Offset Current I
IN
(+)−I
IN
(−) V
CM
= 0V 3.0 25 nA
Input Common Mode V+ = 30V (Note 6) 0 V
+
−1.5 V
Voltage Range
Supply Current R
L
=∞V
+
=5V 0.4 1 mA
V
+
=36V 1 2.5 mA
Voltage Gain R
L
≥15 kΩ,V
+
=15V 50 200 V/mV
V
O
=1Vto11V
Large Signal Response V
IN
=TTL Logic Swing, V
REF
=1.4V 300 ns
Time V
RL
=5V, R
L
=5.1 kΩ
Response Time V
RL
=5V, R
L
=5.1 kΩ(Note 7) 1.3 µs
Output Sink Current V
IN
(−)=1V, V
IN
(+)=0, V
O
≈1.5V 6.0 16 mA
Saturation Voltage V
IN
(−)=1V, V
IN
(+)=0, I
SINK
≤4 mA 250 400 mV
Output Leakage Current V
IN
(−)=0, V
IN
(+)=1V, V
O
=5V 0.1 nA
Electrical Characteristics
(V
+
=5V, T
A
= 25˚C, unless otherwise stated)
Parameter Conditions LM193 LM293, LM393 LM2903 Units
Min Typ Max Min Typ Max Min Typ Max
Input Offset Voltage (Note 9) 1.0 5.0 1.0 5.0 2.0 7.0 mV
Input Bias Current I
IN
(+) or I
IN
(−) with Output In 25 100 25 250 25 250 nA
Linear Range, V
CM
= 0V (Note 5)
Input Offset Current I
IN
(+)−I
IN
(−) V
CM
= 0V 3.0 25 5.0 50 5.0 50 nA
Input Common Mode V+ = 30V (Note 6) 0 V+−1.5 0 V+−1.5 0 V+−1.5 V
Voltage Range
LM193/LM293/LM393/LM2903
www.national.com3
Electrical Characteristics (Continued)
(V
+
=5V, T
A
= 25˚C, unless otherwise stated)
Parameter Conditions LM193 LM293, LM393 LM2903 Units
Min Typ Max Min Typ Max Min Typ Max
Supply Current R
L
=∞V
+
=5V 0.4 1 0.4 1 0.4 1.0 mA
V
+
=36V 1 2.5 1 2.5 1 2.5 mA
Voltage Gain R
L
≥15 kΩ,V
+
=15V 50 200 50 200 25 100 V/mV
V
O
=1Vto11V
Large Signal Response V
IN
=TTL Logic Swing, V
REF
=1.4V 300 300 300 ns
Time V
RL
=5V, R
L
=5.1 kΩ
Response Time V
RL
=5V, R
L
=5.1 kΩ(Note 7) 1.3 1.3 1.5 µs
Output Sink Current V
IN
(−)=1V, V
IN
(+)=0, V
O
≤1.5V 6.0 16 6.0 16 6.0 16 mA
Saturation Voltage V
IN
(−)=1V, V
IN
(+)=0, I
SINK
≤4 mA 250 400 250 400 250 400 mV
Output Leakage Current V
IN
(−)=0, V
IN
(+)=1V, V
O
=5V 0.1 0.1 0.1 nA
Electrical Characteristics
(V+ = 5V) (Note 4)
Parameter Conditions LM193A Units
Min Typ Max
Input Offset Voltage (Note 9) 4.0 mV
Input Offset Current I
IN(+)
−I
IN(−)
,V
CM
=0V 100 nA
Input Bias Current I
IN
(+) or I
IN
(−) with Output in Linear Range, 300 nA
V
CM
=0V (Note 5)
Input Common Mode
Voltage Range
V
+
=30V (Note 6) 0 V
+
−2.0 V
Saturation Voltage V
IN
(−)=1V, V
IN
(+)=0, I
SINK
≤4 mA 700 mV
Output Leakage Current V
IN
(−)=0, V
IN(+)
=1V, V
O
=30V 1.0 µA
Differential Input Voltage Keep All V
IN
’s≥0V (or V
−
, if Used), (Note 8) 36 V
Electrical Characteristics
(V+ = 5V) (Note 4)
Parameter Conditions LM193 LM293, LM393 LM2903 Units
Min Typ Max Min Typ Max Min Typ Max
Input Offset Voltage (Note 9) 9 9 9 15 mV
Input Offset Current I
IN(+)
−I
IN(−)
,V
CM
=0V 100 150 50 200 nA
Input Bias Current I
IN
(+) or I
IN
(−) with Output in
Linear Range, V
CM
=0V
(Note 5)
300 400 200 500 nA
Input Common Mode
Voltage Range
V
+
=30V (Note 6) 0 V
+
−2.0 0 V
+
−2.0 0 V
+
−2.0 V
Saturation Voltage V
IN
(−)=1V, V
IN
(+)=0,
I
SINK
≤4mA
700 700 400 700 mV
Output Leakage Current V
IN
(−)=0, V
IN(+)
=1V, V
O
=30V 1.0 1.0 1.0 µA
Differential Input Voltage Keep All V
IN
’s≥0V (or V
−
,if
Used), (Note 8)
36 36 36 V
Note 1: For operating at high temperatures, the LM393 and LM2903 must be derated based on a 125˚C maximum junction temperature and a thermal resistance
of 170˚C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The LM193/LM193A/LM293 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 (PD≤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
LM193/LM293/LM393/LM2903
www.national.com 4
Electrical Characteristics (Continued)
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.
Note 4: These specifications are limited to −55˚C≤TA≤+125˚C, for the LM193/LM193A. With the LM293 all temperature specifications are limited to
−25˚C≤TA≤+85˚C and the LM393 temperature specifications are limited to 0˚C≤TA≤+70˚C. The LM2903 is limited to −40˚C≤TA≤+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 36V without damage, independent of the magnitude of V+.
Note 7: The response time specified is for 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 −0.3V (or 0.3V below the magnitude of the negative power supply,
if used).
Note 9: At output switch point, VO.1.4V, RS=0Ωwith V+from 5V to 30V; and over the full input common-mode range (0V to V+−1.5V), at 25˚C.
Note 10: Refer to RETS193AX for LM193AH military specifications and to RETS193X for LM193H military specifications.
Ordering Information
Package Temperature Range Part Number NSC Drawing
8-Pin Metal Can
−55˚C to 125˚C
LM193H*
H08C
LM193H/883
LM193AH-QMLV**
LM193AH
LM193AH/883
−25˚C to 85˚C LM293H
0˚C to 70˚C LM393H
8-Pin Ceramic DIP −55˚C to 125˚C
LM193J/883*
J08A
LM193AJ/883
LM193AJ-QMLV**
LM193AJ-MLS
8-Pin Molded DIP 0˚C to 70˚C LM393N N08E
−40˚C to 85˚C LM2903N
8-Pin SOIC
0˚C to 70˚C LM393M
M08A
LM393MX
−40˚C to 85˚C LM2903M
LM2903MX
8-Bump (12 mils)
micro SMD
0˚C to 70˚C LM393TL
TLA08AAA
LM393TLX
−40˚C to 85˚C LM2903ITL
LM2903ITLX
Note: *Also available per LM38510/11202
Note: ** See STD Mil DWG 5962-94526
LM193/LM293/LM393/LM2903
www.national.com5
Typical Performance Characteristics LM193/LM293/LM393, LM193A
Supply Current Input Current
00570925 00570926
Output Saturation Voltage
Response Time for Various Input Overdrives — Negative
Transition
00570927 00570928
Response Time for Various Input Overdrives — Positive
Transition
00570929
LM193/LM293/LM393/LM2903
www.national.com 6
Typical Performance Characteristics LM2903
Supply Current Input Current
00570930 00570931
Output Saturation Voltage
Response Time for Various Input Overdrives — Negative
Transition
00570932
00570933
Response Time for Various Input Overdrives — Positive
Transition
00570934
LM193/LM293/LM393/LM2903
www.national.com7
Application Hints
The LM193 series are high gain, wide bandwidth devices
which, like most comparators, can easily oscillate if the
output lead is inadvertently allowed to capacitively couple to
the inputs via stray capacitance. This shows up only during
the output voltage transition intervals as the comparator
change states. Power supply bypassing is not required to
solve this problem. Standard PC board layout is helpful as it
reduces stray input-output coupling. Reducing the input re-
sistors to <10 kΩreduces the feedback signal levels and
finally, adding even a small amount (1.0 to 10 mV) of positive
feedback (hysteresis) causes such a rapid transition that
oscillations due to stray feedback are not possible. Simply
socketing the IC and attaching resistors to the pins will cause
input-output oscillations during the small transition intervals
unless hysteresis is used. If the input signal is a pulse
waveform, with relatively fast rise and fall times, hysteresis is
not required.
All input pins of any unused comparators should be tied to
the negative supply.
The bias network of the LM193 series establishes a drain
current which is independent of the magnitude of the power
supply voltage over the range of from 2.0 V
DC
to 30 V
DC
.
It is usually unnecessary to use a bypass capacitor across
the power supply line.
The differential input voltage may be larger than V
+
without
damaging the device (Note 8). Protection should be provided
to prevent the input voltages from going negative more than
−0.3 V
DC
(at 25˚C). An input clamp diode can be used as
shown in the applications section.
The output of the LM193 series is the uncommitted collector
of a grounded-emitter NPN output transistor. Many collectors
can be tied together to provide an output OR’ing function. An
output pull-up resistor can be connected to any available
power supply voltage within the permitted supply voltage
range and there is no restriction on this voltage due to the
magnitude of the voltage which is applied to the V
+
terminal
of the LM193 package. The output can also be used as a
simple SPST switch to ground (when a pull-up resistor is not
used). The amount of current which the output device can
sink is limited by the drive available (which is independent of
V
+
) and the βof this device. When the maximum current limit
is reached (approximately 16mA), the output transistor will
come out of saturation and the output voltage will rise very
rapidly. The output saturation voltage is limited by the ap-
proximately 60Ωr
SAT
of the output transistor. The low offset
voltage of the output transistor (1.0mV) allows the output to
clamp essentially to ground level for small load currents.
Typical Applications (V
+
=5.0 V
DC
)
Basic Comparator Driving CMOS Driving TTL
00570935
00570936 00570937
Squarewave Oscillator Pulse Generator Crystal Controlled Oscillator
00570938
00570939
* For large ratios of R1/R2,
D1 can be omitted.
00570940
LM193/LM293/LM393/LM2903
www.national.com 8
Typical Applications (V
+
=5.0 V
DC
) (Continued)
Two-Decade High Frequency VCO
00570941
V*= +30 VDC
+250 mVDC ≤VC≤+50 VDC
700Hz ≤fo≤100kHz
Basic Comparator Non-Inverting Comparator with Hysteresis
00570906
00570909
Inverting Comparator with Hysteresis Output Strobing
00570910
00570911
LM193/LM293/LM393/LM2903
www.national.com9
Typical Applications (V
+
=5.0 V
DC
) (Continued)
AND Gate OR Gate
00570912
00570913
Large Fan-in AND Gate Limit Comparator
00570914
00570915
Comparing Input Voltages of Opposite Polarity ORing the Outputs
00570916
00570917
LM193/LM293/LM393/LM2903
www.national.com 10
Typical Applications (V
+
=5.0 V
DC
) (Continued)
Zero Crossing Detector (Single Power Supply) One-Shot Multivibrator
00570921 00570922
Bi-Stable Multivibrator One-Shot Multivibrator with Input Lock Out
00570924
00570923
Zero Crossing Detector Comparator With a Negative Reference
00570943 00570944
LM193/LM293/LM393/LM2903
www.national.com11
Typical Applications (V
+
=5.0 V
DC
) (Continued)
Time Delay Generator
00570907
Split-Supply Applications (V
+
=+15 V
DC
and V
−
=−15 V
DC
)
MOS Clock Driver
00570942
LM193/LM293/LM393/LM2903
www.national.com 12
Physical Dimensions inches (millimeters) unless otherwise noted
Metal Can Package (H)
NS Package Number H08C
Ceramic Dual-In-Line Package
NS Package Number J08A
LM193/LM293/LM393/LM2903
www.national.com13
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
SOIC Package
NS Package Number M08A
Molded Dual-In-Line Package (N)
NS Package N08E
LM193/LM293/LM393/LM2903
www.national.com 14
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
NOTE: UNLESS OTHERWISE SPECIFIED
1. EPOXY COATING
2. 63Sn/37Pb EUTECTIC BUMP
3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD.
4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION REMAINING PINS ARE NUMBERED
COUNTERCLOCKWISE.
5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1IS PACKAGE WIDTH, X2IS PACKAGE LENGTH AND X3IS
PACKAGE HEIGHT.
6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC.
8-Bump (12 mil) micro SMD Package
NS Package TLA08AAA
X
1
= 1.514mm X
2
= 1.514mm X
3
= 0.600mm
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NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor
Corporation
Americas
Email: support@nsc.com
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Europe
Fax: +49 (0) 180-530 85 86
Email: europe.support@nsc.com
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Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
www.national.com
LM193/LM293/LM393/LM2903 Low Power Low Offset Voltage Dual Comparators
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
National P/N LM393 - Low Power Low Offset Voltage Dual Comparator
See A/D Converters
Products
Products > Analog - Comparators > LM393
LM393 Product Folder
Low Power Low Offset Voltage Dual Comparator
See Also: LMV393 - lower voltage
Generic P/N 393
General
Description Features Datasheet Package
& Models Samples
& Pricing Design
Tools Application
Notes
Parametric Table Parametric Table
Number of Channels 2
Response Time, typ (us) .40
Supply Voltage, min (Volt) 2
Supply Voltage, max (Volt) 36
Supply Current per Channel, typ (mA) .20
Input Range Vcm to V-
Output Type Open Drain
Output Current, typ (mA) 16
Vos, Room max (mV) 5
Input Bias Current, max (nA) 400
Special Functions -
Datasheet
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LM193 LM293 LM393 LM2903 Low Power Low Offset
Voltage Dual Comparators 411
Kbytes
17-
Jul-
02 View Online Download Receive via
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LM193 LM293 LM393 LM2903 Low Power Low Offset
Voltage Dual Comparators (JAPANESE)208
Kbytes
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Package Availability, Models, Samples & Pricing
Part
Number
Package Status Models Samples &
Electronic
Orders
Budgetary
Pricing Std
Pack
Size
Package
Marking
Type Pins MSL SPICE IBIS Qty $US
each
LM393M SOIC
NARROW 8MSL Full production N/A N/A
24 Hour
Samples
Buy Now
1K+ $0.0850 rail
of
95
[logo]¢2¢T
LM
393M
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National P/N LM393 - Low Power Low Offset Voltage Dual Comparator
LM393MX SOIC
NARROW 8MSL Full production N/A N/A
Buy Now
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of
2500
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LM
393M
LM393N MDIP 8MSL Full production N/A N/A
Buy Now
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of
40
[logo]¢U¢Z¢2¢T
LM
393N
LM393TL microSMD 8 MSL Full
production N/A N/A
Samples
1K+ $0.1200 reel
of
250
¢1¢IC
$I¢C02
LM393TLX microSMD 8 MSL Full
production N/A N/A 1K+ $0.1200 reel
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$I¢C02
LM393H TO-5 8MSL Full production N/A N/A
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of
500
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LM393H
LM393
MDC Die Full production N/A N/A
Samples
tray
of
N/A -
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MWC Wafer Full production N/A N/A
wafer
jar
of
N/A
-
General Description
The LM193 series consists of two independent precision voltage comparators with an offset voltage
specification as low as 2.0 mV max for two 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 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
LM193 series was designed to directly interface with TTL and CMOS. When operated from both plus and
minus power supplies, the LM193 series will directly interface with MOS logic where their low power drain is a
distinct advantage over standard comparators.
The LM393 and LM2903 parts are available in National's innovative thin micro SMD package with 8 (12 mil)
large bumps.
Features
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National P/N LM393 - Low Power Low Offset Voltage Dual Comparator
● Wide supply
Voltage range: 2.0V to 36V
Single or dual supplies: ±1.0V to ±18V
Very low supply current drain (0.4 mA) - independent of supply voltage
Low input biasing current: 25 nA
Low input offset current: ±5 nA
Maximum offset voltage: ±3 mV
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply voltage
Low output saturation voltage,: 250 mV at 4 mA
Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems
Available in the 8-Bump (12 mil) micro SMD package
See AN-1112 for micro SMD considerations
Applications
● High precision comparators
● Reduced VOS drift over temperature
● Eliminates need for dual supplies
● Allows sensing near ground
● Compatible with all forms of logic
● Power drain suitable for battery operation
Design Tools
Title Size in Kbytes Date View Online Download Receive via Email
Amplifiers Selection Guide
software for Windows 7 Kbytes 12-Jun-2002 View
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Application Notes
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Kbytes Date View Online Download Receive via
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AN-274: CMOS A/D Converter
Interfaces Easily with Many
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National P/N LM393 - Low Power Low Offset Voltage Dual Comparator
AN-74: Application Note 74
LM139/LM239/LM339 A Quad of
Independently Functioning
Comparators
555 Kbytes 24-Feb-
99 View Online Download Receive via
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National P/N LM2903 - Low Power Low Offset Voltage Dual Comparator
See A/D Converters
Products
Products > Analog - Comparators > LM2903
LM2903 Product Folder
Low Power Low Offset Voltage Dual Comparator
Generic P/N 2903
General
Description Features Datasheet Package
& Models Samples
& Pricing Design
Tools
Parametric Table Parametric Table
Number of Channels 2
Response Time, typ (us) .40
Supply Voltage, min (Volt) 2
Supply Voltage, max (Volt) 36
Supply Current per Channel, typ (mA) .20
Input Range Vcm to V-
Output Type Open Drain
Output Current, typ (mA) 16
Vos, Room max (mV) 7
Input Bias Current, max (nA) 500
Special Functions -
Datasheet
Title Size in
Kbytes Date View Online Download Receive via
Email
LM193 LM293 LM393 LM2903 Low Power Low Offset
Voltage Dual Comparators 411
Kbytes
17-
Jul-
02 View Online Download Receive via
Email
LM193 LM293 LM393 LM2903 Low Power Low Offset
Voltage Dual Comparators (JAPANESE)208
Kbytes
View Online
Download
Receive via
Email
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Package Availability, Models, Samples & Pricing
Part
Number
Package Status Models Samples &
Electronic
Orders
Budgetary
Pricing Std
Pack
Size
Package
Marking
Type Pins MSL SPICE IBIS Qty $US
each
LM2903M SOIC
NARROW 8MSL Full production N/A N/A
24 Hour
Samples
Buy Now
1K+ $0.1100 rail
of
95
[logo]¢2¢T
LM
2903M
LM2903MX SOIC
NARROW 8MSL Full production N/A N/A
Buy Now
1K+ $0.1100 reel
of
2500
[logo]¢2¢T
LM
2903M
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2903.html (1 of 3) [Aug-09-2002 1:43:48 PM]
National P/N LM2903 - Low Power Low Offset Voltage Dual Comparator
LM2903N MDIP 8MSL Full production N/A N/A
Buy Now
1K+ $0.1100 rail
of
40
[logo]¢U¢Z¢2¢T
LM
2903N
LM2903ITL microSMD 8 MSL Full
production N/A N/A
Samples
1K+ $0.1450 reel
of
250
¢1¢IC
$I¢C03
LM2903ITLX microSMD 8 MSL Full
production N/A N/A 1K+ $0.1450 reel
of
3000
¢1¢IC
$I¢C03
LM2903 MDA Die Full production N/A N/A
Samples
tray
of
N/A -
LM2903
MWA Wafer Full production N/A N/A
wafer
jar
of
N/A
-
General Description
The LM193 series consists of two independent precision voltage comparators with an offset voltage
specification as low as 2.0 mV max for two 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 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
LM193 series was designed to directly interface with TTL and CMOS. When operated from both plus and
minus power supplies, the LM193 series will directly interface with MOS logic where their low power drain is a
distinct advantage over standard comparators.
The LM393 and LM2903 parts are available in National's innovative thin micro SMD package with 8 (12 mil)
large bumps.
Features
● Wide supply
Voltage range: 2.0V to 36V
Single or dual supplies: ±1.0V to ±18V
Very low supply current drain (0.4 mA) - independent of supply voltage
Low input biasing current: 25 nA
Low input offset current: ±5 nA
Maximum offset voltage: ±3 mV
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply voltage
Low output saturation voltage,: 250 mV at 4 mA
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM2903.html (2 of 3) [Aug-09-2002 1:43:48 PM]
National P/N LM2903 - Low Power Low Offset Voltage Dual Comparator
Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems
Available in the 8-Bump (12 mil) micro SMD package
See AN-1112 for micro SMD considerations
Applications
● High precision comparators
● Reduced VOS drift over temperature
● Eliminates need for dual supplies
● Allows sensing near ground
● Compatible with all forms of logic
● Power drain suitable for battery operation
Design Tools
Title Size in Kbytes Date View Online Download Receive via Email
Amplifiers Selection Guide
software for Windows 7 Kbytes 12-Jun-2002 View
If you have trouble printing or viewing PDF file(s), see Printing Problems.
[Information as of 5-Aug-2002]
Search Design Purchasing Quality Company Home
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Contact Us . Site Terms & Conditions of Use . Copyright 2002 © National Semiconductor Corporation . My Preferences .
Feedback
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National P/N LM193 - Low Power Low Offset Voltage Dual Comparator
See A/D Converters
Products
Products > Analog - Comparators > LM193
LM193 Product Folder
Low Power Low Offset Voltage Dual Comparator
Generic P/N 193
General
Description Features Datasheet Package
& Models Samples
& Pricing Design
Tools
Parametric Table Parametric Table
Number of Channels 2
Response Time, typ (us) .40
Supply Voltage, min (Volt) 2
Supply Voltage, max (Volt) 36
Supply Current per Channel, typ (mA) .20
Input Range Vcm to V-
Output Type Open Drain
Output Current, typ (mA) 16
Vos, Room max (mV) 2, 5
Input Bias Current, max (nA) 300
Special Functions -
Datasheet
Title Size in Kbytes Date View Online Download Receive via Email
LM193 LM293 LM393 LM2903 Low
Power Low Offset Voltage Dual
Comparators 411 Kbytes 17-Jul-02 View Online Download Receive via Email
LM193 Mil-Aero (JAN) Datasheet
MJLM193-X 124 Kbytes View Online Download Receive via Email
LM193 Mil-Aero Datasheet
MNLM193-X 113 Kbytes View Online Download Receive via Email
LM193 Mil-Aero Datasheet
MNLM193A-X 125 Kbytes View Online Download Receive via Email
If you have trouble printing or viewing PDF file(s), see Printing Problems.
Package Availability, Models, Samples & Pricing
Part Number Package Status Models Samples &
Electronic
Orders
Budgetary
Pricing Std
Pack
Size
Package
Marking
Type Pins MSL SPICE IBIS Qty $US each
LM193AH TO-5 8MSL Full
production N/A N/A
Buy Now
1K+ $3.8400 box
of
500
[logo]¢Z¢2¢T
LM193AH
LM193H TO-5 8MSL Full
production N/A N/A
Buy Now
1K+ $2.0000 box
of
500
[logo]¢Z¢2¢T
LM193H
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National P/N LM193 - Low Power Low Offset Voltage Dual Comparator
LM193AH/883 TO-5 8MSL Full
production N/A N/A
Buy Now
50+ $5.0000 tray
of
20
[logo]¢Z¢S¢4¢A
LM193AH/883Q
5962-
9452602MGA$E
LM193H/883 TO-5 8MSL Full
production N/A N/A
Buy Now
50+ $4.0500 tray
of
20
[logo]¢Z¢S¢4¢A$E
LM193H/883Q
LM193AJ/883 CERDIP 8MSL Full
production N/A N/A
Buy Now
50+ $4.7000 rail
of
40
[logo]¢Z¢S¢4¢A$E
LM193AJ/883
Q 5962-
9452602MPA
LM193J/883 CERDIP 8MSL Full
production N/A N/A
Buy Now
50+ $3.2000 rail
of
40
[logo]¢Z¢S¢4¢A
LM193J/
883Q $E
JM38510/11202BG TO-5 8MSL Full
production N/A N/A 50+ $29.1000 tray
of
20
[logo] ¢Z¢S¢4¢A
27014 QS
JM38510/11202BGA
$E
JM38510/11202BP CERDIP 8MSL Full
production N/A N/A 50+ $10.4000 rail
of
40
[logo] JM38510
/11202BPA
27014 Q
¢Z¢S¢4¢A$E
5962-
9452602VGA TO-5 8MSL Full
production N/A N/A 50+ $198.0000 tray
of
20
[logo]¢Z¢S¢4¢A$E
LM193AH-QMLV
5962-9452602VGA
RM193AJXQMLV CERDIP 8MSL Preliminary N/A N/A rail
of
N/A
[logo]¢Z¢S¢4¢A$E
RM193AJX
QMLV WAFER#
¢R
5962-9452602VPA CERDIP 8MSL Full
production N/A N/A 50+ $194.0000 rail
of
40
[logo]¢Z¢S¢4¢A$E
LM193AJ-QMLV
5962-
9452602VPA
LM193AH-MLS TO-5 8MSL Full
production N/A N/A tray
of
N/A
[logo]¢Z¢S¢4¢A$E
LM193AH-MLS
LM193H-MLS TO-5 8MSL Full
production N/A N/A tray
of
N/A
[logo]¢Z¢S¢4¢A$E
LM193H-MLS
LM193AJ-MLS CERDIP 8MSL Full
production N/A N/A 50+ $201.0000 rail
of
40
[logo]¢Z¢S¢4¢A
LM193AJ
-MLS$E
LM193 MD8 Die Full
production N/A N/A
Samples
tray
of
N/A -
LM193 MW8 Wafer Full
production N/A N/A
wafer
jar
of
N/A
-
General Description
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM193.html (2 of 4) [Aug-09-2002 1:43:51 PM]
National P/N LM193 - Low Power Low Offset Voltage Dual Comparator
The LM193 series consists of two independent precision voltage comparators with an offset voltage
specification as low as 2.0 mV max for two 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 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
LM193 series was designed to directly interface with TTL and CMOS. When operated from both plus and
minus power supplies, the LM193 series will directly interface with MOS logic where their low power drain is a
distinct advantage over standard comparators.
The LM393 and LM2903 parts are available in National's innovative thin micro SMD package with 8 (12 mil)
large bumps.
Features
● Wide supply
Voltage range: 2.0V to 36V
Single or dual supplies: ±1.0V to ±18V
Very low supply current drain (0.4 mA) - independent of supply voltage
Low input biasing current: 25 nA
Low input offset current: ±5 nA
Maximum offset voltage: ±3 mV
Input common-mode voltage range includes ground
Differential input voltage range equal to the power supply voltage
Low output saturation voltage,: 250 mV at 4 mA
Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems
Available in the 8-Bump (12 mil) micro SMD package
See AN-1112 for micro SMD considerations
Applications
● High precision comparators
● Reduced VOS drift over temperature
● Eliminates need for dual supplies
● Allows sensing near ground
● Compatible with all forms of logic
● Power drain suitable for battery operation
Design Tools
file:///H|/imaging/BITTING/cpl/20020808_1/08062002_10/NATL/08062002_HTML/LM193.html (3 of 4) [Aug-09-2002 1:43:51 PM]
National P/N LM193 - Low Power Low Offset Voltage Dual Comparator
Title Size in Kbytes Date View Online Download Receive via Email
Amplifiers Selection Guide
software for Windows 7 Kbytes 12-Jun-2002 View
If you have trouble printing or viewing PDF file(s), see Printing Problems.
[Information as of 5-Aug-2002]
Search Design Purchasing Quality Company Home
About Languages . Website Guide . About "Cookies" . National is QS 9000 Certified . Privacy/Security Statement .
Contact Us . Site Terms & Conditions of Use . Copyright 2002 © National Semiconductor Corporation . My Preferences .
Feedback
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