LM293AH NSC [National Semiconductor], LM293AH Datasheet

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LM293AH

Manufacturer Part Number
LM293AH
Description
Low Power Low Offset Voltage Dual Comparators
Manufacturer
NSC [National Semiconductor]
Datasheet
© 2002 National Semiconductor Corporation
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.
Squarewave Oscillator
DS005709
00570938
Advantages
n High precision comparators
n Reduced V
n Eliminates need for dual supplies
n Allows sensing near ground
n Compatible with all forms of logic
n Power drain suitable for battery operation
Features
n Wide supply
n Very low supply current drain (0.4 mA) — independent
n Low input biasing current:
n Low input offset current:
n Maximum offset voltage:
n Input common-mode voltage range includes ground
n Differential input voltage range equal to the power
n Low output saturation voltage,:
n Output voltage compatible with TTL, DTL, ECL, MOS
n Available in the 8-Bump (12 mil) micro SMD package
n See AN-1112 for micro SMD considerations
of supply voltage
supply voltage
and CMOS logic systems
— Voltage range:
— Single or dual supplies:
Non-Inverting Comparator with Hysteresis
OS
drift over temperature
250 mV at 4 mA
±
1.0V to
www.national.com
August 2002
2.0V to 36V
00570909
±
±
25 nA
±
3 mV
5 nA
18V

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LM293AH Summary of contents

Page 1

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 ...

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Schematic and Connection Diagrams Metal Can Package micro SMD Top View www.national.com Dual-In-Line/SOIC Package 00570903 00570945 2 00570902 00570901 micro SMD Marking 00570946 Top View ...

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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. + Supply Voltage, V Differential Input Voltage (Note 8) Input Voltage < Input Current (V −0.3V) (Note 3) IN ...

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Electrical Characteristics + (V =5V 25˚C, unless otherwise stated) A Parameter ∞ Supply Current ≥15 kΩ, V Voltage Gain 11V O Large Signal Response V =TTL Logic Swing, V ...

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Electrical Characteristics on the IC chip. This transistor action can cause the output voltages of the comparators the V duration that an input is driven negative. This is not destructive and normal output states will re-establish when ...

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Typical Performance Characteristics Supply Current Output Saturation Voltage Response Time for Various Input Overdrives — Positive Transition www.national.com LM193/LM293/LM393, LM193A 00570925 Response Time for Various Input Overdrives — Negative 00570927 00570929 6 Input Current 00570926 Transition 00570928 ...

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Typical Performance Characteristics Supply Current Output Saturation Voltage Response Time for Various Input Overdrives — Positive Transition LM2903 00570930 Response Time for Various Input Overdrives — Negative 00570932 00570934 7 Input Current 00570931 Transition 00570933 www.national.com ...

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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 ...

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Typical Applications + ( + ≤ V ≤ +50 V +250 700Hz ≤ f ≤ 100kHz o Basic Comparator Inverting Comparator with Hysteresis =5 (Continued) DC Two-Decade High Frequency ...

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Typical Applications (V AND Gate Large Fan-in AND Gate Comparing Input Voltages of Opposite Polarity www.national.com + =5 (Continued) DC 00570912 00570914 00570916 10 OR Gate 00570913 Limit Comparator 00570915 ORing the Outputs 00570917 ...

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Typical Applications + (V Zero Crossing Detector (Single Power Supply) Bi-Stable Multivibrator Zero Crossing Detector =5 (Continued) DC 00570921 One-Shot Multivibrator with Input Lock Out 00570924 Comparator With a Negative Reference 00570943 11 One-Shot Multivibrator 00570922 00570923 00570944 ...

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Typical Applications (V Split-Supply Applications www.national.com + =5 (Continued) DC Time Delay Generator + − (V =+15 V and V =− MOS Clock Driver 12 00570907 00570942 ...

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Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) NS Package Number H08C Ceramic Dual-In-Line Package NS Package Number J08A 13 www.national.com ...

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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted (Continued) SOIC Package NS Package Number M08A Molded Dual-In-Line Package (N) NS Package N08E 14 ...

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Physical Dimensions 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. ...

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