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LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Dual Differential Comparator
Features
••••••••
Single Supply Operation: 2V to 36VDual Supply Operation: ± 1V to ±18V
Allow Comparison of Voltages Near Ground PotentialLow Current Drain 800µA Typ.Compatible with all Forms of LogicLow Input Bias Current 25nA Typ.Low Input Offset Current ±5nA Typ.Low Offset Voltage ±1mV Typ.
Description
The LM2903/LM2903I, LM393/LM393A, LM293/
LM293A consist of two independent voltage comparators designed to operate from a single power supply over a wide voltage range.
8-DIP
1
8-SOP
1
Internal Block Diagram
Rev. 1.0.3
©2001 Fairchild Semiconductor Corporation
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Schematic Diagram
Absolute Maximum Ratings
Parameter
Power Supply VoltageDifferential Input VoltageInput Voltage
Output Short Circuit to GNDPower Dissipation, Ta = 25°C8-DIP8-SOP
Operating TemperatureLM393/LM393ALM2903LM2903I
LM293/LM293AStorage Temperature
SymbolVCCVI(DIFF)VI-PD
Value±18 or 36
36- 0.3 to +36Continuous10404800 ~ +70- 40 ~ +85-40 ~ +105-25 ~ +85- 65 ~ +150
UnitVVV-mW
TOPRTSTG
°C°C
Thermal Data
Parameter
Thermal Resistance Junction-Ambient Max.8-DIP8-SOP
SymbolRθja
Value120260
Unit°C/W
2
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Electrical Characteristics
(VCC = 5V, TA = 25°C, unless otherwise specified)ParameterInput Offset Voltage Input Offset Current Input Bias Current Input Common Mode
Voltage RangeSupply Current Voltage GainLarge Signal ResponseTimeResponse TimeOutput Sink CurrentOutput Saturation Voltage Output Leakage Current
SymbolVIOIIOIBIAS
Conditions
VO(P) =1.4V, RS = 0ΩVCM= 0 to1.5VNote 1
Note 1Note 1
LM293A/LM393AMin.------0
Note 1
ICCGVTLRESTRESISINKVSAT
RL = ∞ , VCC = 5VRL = ∞, VCC = 30VVCC =15V, RL ≥ 15KΩ (for large VO(P-P)swing)VI =TTL Logic SwingVREF =1.4V, VRL = 5V,RL = 5.1KΩ
VRL =5V, RL =5.1KΩVI(-) ≥ 1V, VI(+) =0V, VO(P) ≤1.5VVI(-) ≥ 1V, VI(+) = 0VISINK = 4mA
Note 1VO(P) = 5VVO(P) = 30V
0--50--6----Typ.±1-±5-65---0.60.82003501.418160-0.1-Max.±2±4.0±50±150250400VCC-1.5VCC-212.5----400700-1.0
------00--50--6----LM293/LM393Min.
Typ.±1-±5-65---0.60.82003501.418160-0.1-Max.±5±9.0±50±150250400VCC-1.5VCC-212.5----400700-1.0
mVnAµAmAV/mVnSµSmAUnitmVnAnA
VI(R)V
VI(-) = 0V,
IO(LKG)
VI(+) = 1V
NOTE 1
LM393/LM393A: 0 ≤ TA ≤ +70°CLM2903: -40 ≤ TA ≤ +85°CLM2903I: -40 ≤ TA ≤ +105°C
LM293/LM293A : -25 ≤ TA ≤ +85°C
3
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Electrical Characteristics (Continued)
(VCC = 5V, TA = 25°C, unless otherwise specified)Parameter
Input Offset Voltage Input Offset Current Input Bias Current Input Common ModeVoltage RangeSupply Current Voltage Gain
Large Signal Response TimeResponse TimeOutput Sink CurrentOutput Saturation Voltage Output Leakage Current
Note 1
LM393/LM393A: 0 ≤ TA ≤ +70°CLM2903: -40 ≤ TA ≤ +85°CLM2903I: -40 ≤ TA ≤ +105°C
LM293/LM293A : -25 ≤ TA ≤ +85°C
SymbolVIOIIOIBIAS
Conditions
VO(P) =1.4V, RS = 0ΩVCM= 0 to 1.5V
Note 1Note 1Note 1
LM2903/LM2903IMin.------0
Typ.±1±9±5±5065---0.611003501.516160-0.1-Max.±7±15±50±200250500VCC-1.5VCC-212.5----400700-1.0
UnitmVnAnA
VI(R)
Note 1
ICCGVTLRESTRESISINKVSATIO(LKG)
RL = ∞, VCC = 5VRL = ∞, VCC = 30VVCC =15V, RL≥15KΩ(for large VO(P-P)swing)
VI =TTL Logic Swing
VREF =1.4V, VRL = 5V, RL = 5.1KΩVRL = 5V, RL = 5.1KΩ
VI(-) ≥ 1V, VI(+) = 0V, VO(P) ≤ 1.5VVI(-) ≥ 1V, VI(+) = 0VISINK = 4mAVI(-) = 0V,VI(+) = 1V
Note 1VO(P) = 5VVO(P) = 30V
V
0--25--6----
mA V/mVnSµSmAmVnAµA
4
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Typical Performance Characteristics
Figure 1.Supply Current vs Supply VoltageFigure 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.Response Time for Various Input
Overdrive-Positive Transition
5
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Mechanical Dimensions
Package
Dimensions in millimeters
8-DIP
1.524 ±0.100.018 ±0.0040.060 ±0.0040.46 ±0.106.40 ±0.200.252 ±0.008(#1#.20 ±0.200.362 ±0.00.60MAX0.378#4#52.540.1007.620.3005.08MAX0.2003.40 ±0.200.134 ±0.0083.30 ±0.300.130 ±0.0120.33MIN0.0130.79)0.0310.25–0.050.010–0.0020~15°+0.004+0.106
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Mechanical Dimensions (Continued)
Package
Dimensions in millimeters
8-SOP
MIN1.55 ±0.200.061 ±0.0080.1~0.250.004~0.001#1#84.92 ±0.200.194 ±0.0085.13MAX0.202(#4#56.00 ±0.300.236 ±0.012+0.100.15-0.05+0.0040.006-0.0020.56)0.0221.80MAX0.071MAX0.10MAX0.0043.95 ±0.200.156 ±0.0085.720.2250.50 ±0.200.020 ±0.0080~8°1.270.0500.41 ±0.100.016 ±0.0047
LM2903/LM2903I,LM393/LM393A, LM293/LM293A
Ordering Information
Product Number
LM393NLM393ANLM393MLM393AMLM2903NLM2903MLM2903INLM2903IMLM293NLM293ANLM293MLM293AM
Package 8-DIP
0 ~ + 70°C
8-SOP 8-DIP 8-SOP 8-DIP 8-SOP8-DIP
-25 ~ + 85°C
8-SOP
-40 ~ + 85°C-40 ~ + 105°COperating Temperature
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD 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 (c) 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 of the user.
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2.A critical component in 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.
