Datasheet

ManualsBrandsFAIRCHILD SEMICONDUCTOR ManualsLinear ICsLinear IC - Comparator Differential SOP 8

www.fairchildsemi.com

Rev. 2.0.2

Features

• Single Supply Operation: 2V to 36V

• Dual Supply Operation: 1V to 18V

• Allow Comparison of Voltages Near Ground Potential

•Low Current Drain 800A Typ.

• Compatible with all Forms of Logic

• Low Input Bias Current 25nA Typ.

• Low Input Offset Current 5nA Typ.

• Low Offset Voltage 1mV Typ.

Description

The LM2903, LM393/LM393A, LM293A consist of two

independent voltage comparators designed to operate from a

single power supply over a wide voltage range.

8-DIP

8-SOIC

Internal Block Diagram

OUTPUT2

IN2 (-)

IN2 (+)

OUTPUT1

IN1 (-)

IN1 (+)

GND

LM2903,LM393/LM393A,LM293A

Dual Differential Comparator

Summary of content (8 pages)

PAGE 1
www.fairchildsemi.com LM2903,LM393/LM393A,LM293A Dual Differential Comparator Features Description • • • • • • • • The LM2903, LM393/LM393A, LM293A consist of two independent voltage comparators designed to operate from a single power supply over a wide voltage range. Single Supply Operation: 2V to 36V Dual Supply Operation: 1V to 18V Allow Comparison of Voltages Near Ground Potential Low Current Drain 800A Typ. Compatible with all Forms of Logic Low Input Bias Current 25nA Typ.
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LM2903,LM393/LM393A,LM293A Schematic Diagram VCC Q12 Q9 Q14 D3 D2 D4 Q2 Q3 R2 D1 IN (+) Q1 Q4 OUTPUT Q8 IN (-) Q13 Q7 Q5 D5 Q6 R1 D6 GND Absolute Maximum Ratings Parameter Symbol Value Unit VCC 18 or 36 V VI(DIFF) 36 V Input Voltage VI -0.
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LM2903,LM393/LM393A,LM293A Electrical Characteristics (VCC = 5V, TA = 25C, unless otherwise specified) Parameter Symbol Input Offset Voltage VIO Input Offset Current IIO Input Bias Current IBIAS Input Common Mode Voltage Range VI(R) Supply Current ICC Voltage Gain GV Large Signal Response Time Conditions LM293A/LM393A LM393 Unit Min. Typ. Max. Min. Typ. Max. VO(P) =1.4V, RS = 0 - 1 2 - 1 5 VCM= 0 to 1.5V Note1 - - 4.0 - - 9.
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LM2903,LM393/LM393A,LM293A Electrical Characteristics (Continued) (VCC = 5V, TA = 25C, unless otherwise specified) Parameter Input Offset Voltage VIO Input Offset Current IIO Input Bias Current IBIAS Input Common Mode Voltage Range VI(R) Supply Current ICC Voltage Gain GV Conditions LM2903 Unit Min. Typ. Max. VO(P) =1.4V, RS = 0 - 1 7 VCM= 0 to 1.5V - 9 15 - 5 50 - 50 200 - 65 250 - - 500 0 - VCC -1.5 0 - VCC-2 RL = , VCC = 5V - 0.
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LM2903,LM393/LM393A,LM293A Typical Performance Characteristics Figure 1. Supply Current vs Supply Voltage Figure 2. Input Current vs Supply Voltage Figure 3. Output Saturation Voltage vs Sink Current Figure 4. Response Time for Various Input Overdrive-Negative Transition Figure 5.
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LM2903,LM393/LM393A,LM293A Mechanical Dimensions Package Dimensions in millimeters 8-DIP [ .400 10.15 .373 9.46 A ] .036 [0.9 TYP] (.092) [Ø2.337] (.032) [R0.813] PIN #1 .250±.005 [6.35±0.13] PIN #1 B TOP VIEW OPTION 1 TOP VIEW OPTION 2 [ ] .070 1.78 .045 1.14 .310±.010 [7.87±0.25] .130±.005 [3.3±0.13] .210 MAX [5.33] 7° TYP 7° TYP C [ ] .021 0.53 .015 0.37 .001[.025] C .015 MIN [0.38] .140 3.55 .125 3.17 [ ] .100 [2.54] NOTES: A.
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LM2903,LM393/LM393A,LM293A Mechanical Dimensions (Continued) Package Dimensions in millimeters 8-SOIC 7
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LM2903,LM393/LM393A,LM293A Ordering Information Product Number Operating Temperature LM393N 8-DIP LM393AN LM393M LM393MX Package 8-SOIC LM393AMX 8-DIP -40 ~ +105C LM2903MX LM293AN Rail Tape & Reel Rail Tape & Reel LM2903N LM2903M Rail Rail 0 ~ +70C LM393AM Packing Method -25 ~ +85C 8-SOIC 8-DIP Rail Rail Tape & Reel Rail DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN.