©2001 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.3
Features
Single Supply Operation: 2V to 36V
Dual Supply Opera ti o n: ± 1V to ±18V
Allow Comparison of Voltages Near Ground Potential
Low Current Drain 800µA Typ.
Compatible with all Forms of Logic
Lo w Inpu t Bias Current 25nA Typ.
Low In put Offset Current ±5nA Typ.
Low Offset Voltage ±1mV Typ.
Description
The LM2903/LM2903I, LM393/LM393A, LM293/
LM29 3A consist of two independent volta ge comparators
designed to operate from a single power supply over a wide
voltage range.
8-DIP
8-SOP
1
1
Internal Block Diagram
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
Dual Differential Comparator
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
2
Schematic Diagram
Absolute Maximum Ratings
Thermal Data
Parameter Symbol Value Unit
Power Supply Voltage VCC ±18 or 36 V
Differential Input Voltage VI(DIFF) 36 V
Input Voltage VI- 0.3 to +36 V
Output Short Circuit to GND - Continuous -
Power Dissipation, Ta = 25°C
8-DIP
8-SOP PD1040
480 mW
Operating Temperature
LM393/LM393A
LM2903
LM2903I
LM293/LM293A
TOPR
0 ~ +70
- 40 ~ +85
-40 ~ +105
-25 ~ +85
°C
Storage Temperature TSTG - 65 ~ +150 °C
Parameter Symbol Value Unit
Thermal Resistance Junction-Ambient Max.
8-DIP
8-SOP Rθja 120
260 °C/W
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
3
Electrical Characteristics
(VCC = 5V, TA = 25°C, unless otherwise specified)
NOTE 1
LM393/LM393A: 0 TA +70°C
LM2903: -40 TA +85°C
LM2903I: -40 TA+105°C
LM293/L M 293 A : -25 TA +85°C
Parameter Symbol Conditions LM293A/LM393A LM293/LM393 Unit
Min. Typ. Max. Min. Typ. Max.
Input Offset
Voltage VIO VO(P) =1.4V, RS = 0-±1±2-±1±5mV
VCM= 0 to1.5V Note 1 - - ±4.0 - - ±9.0
Input Offset
Current IIO -±5±50 - ±5±50 nA
Note 1 - - ±150 - - ±150
Input Bias
Current IBIAS - 65 250 - 65 250 nA
Note 1 - - 400 - - 400
Input Common
Mode
Voltage Range VI(R) 0-
VCC
-1.5 0-
VCC
-1.5 V
Note 1 0 - VCC-2 0 - VCC-2
Supply Current ICC RL = ∞ , VCC = 5V - 0.6 1 - 0.6 1 mA
RL = , VCC = 30V - 0.8 2.5 - 0.8 2.5
Voltage Gain GVVCC =15V, RL 15K
(for large VO(P-P)swing)50 200 - 50 200 - V/mV
Large Signal
Response
Time TLRES VI =TTL Logic Swing
VREF =1.4V, VRL = 5V,
RL = 5.1K- 350 - - 350 - nS
Response
Time TRES VRL =5V, RL =5.1K-1.4 - - 1.4 - µS
Output Sink
Current ISINK VI(-) 1V, VI(+) =0V,
VO(P) 1.5V 618 - 6 18 -mA
Output
Saturation
Voltage VSAT VI(-) 1V, VI(+) = 0V - 160 400 - 160 400 mV
ISINK = 4mA Note 1 - - 700 - - 700
Output
Leakage
Current IO(LKG) VI(-) = 0V,
VI(+) = 1V
VO(P) = 5V - 0.1 - - 0.1 - nA
VO(P) = 30V - - 1.0 - - 1.0 µA
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
4
Electrical Characteristics (Continued)
(VCC = 5V, TA = 25°C, unless otherwise specified)
Note 1
LM393/LM393A: 0 TA +70°C
LM2903: -40 TA +85°C
LM2903I: -40 TA +105°C
LM293/L M 293 A : -25 TA +85°C
Parameter Symbol Conditions LM2903/LM2903I Unit
Min. Typ. Max.
Input Offset Voltage VIO VO(P) =1.4V, RS = 0-±1±7mV
VCM= 0 to 1.5V Note 1 - ±9±15
Input Offset Current IIO -±5±50 nA
Note 1 - ±50 ±200
Input Bias Current IBIAS - 65 250 nA
Note 1 - - 500
Input Common Mode
Voltage Range VI(R) 0-VCC
-1.5 V
Note 1 0 - VCC-2
Supply Current ICC RL = , VCC = 5V - 0.6 1 mA
RL = , VCC = 30V - 1 2.5
Voltage Gain GVVCC =15V, RL15K
(for large VO(P-P)swing)25 100 - V/mV
Large Signal Response Time TLRES VI =TTL Logic Swing
VREF =1.4V, VRL = 5V, RL = 5.1K- 350 - nS
Response Time TRES VRL = 5V, RL = 5.1K-1.5 - µS
Output Sink Current ISINK VI(-) 1V, VI(+) = 0V, VO(P) 1.5V 6 16 - mA
Output Saturation Voltage VSAT VI(-) 1V, VI(+) = 0V - 160 400 mV
ISINK = 4mA Note 1 - - 700
Output Leakage Current IO(LKG) VI(-) = 0V, VO(P) = 5V - 0.1 - nA
VI(+) = 1V VO(P) = 30V - - 1.0 µA
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
5
Typical Performance Chara cte ristic s
Figure 1. Supply Current vs Supply Voltage Figure 2. Input Current vs Supply Voltage
Figure 3. Output Saturation Voltage vs Sink Curren t Figure 4. Respo nse Time for Various I nput
Ove rdrive-Negat ive Transi tion
Figure 5. Response Time for Various Input
Overdrive-Positive Transition
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
6
Mechanical Dimensions
Package Dimensions in millimeters
6.40
±0.20
3.30
±0.30
0.130
±0.012
3.40
±0.20
0.134
±0.008
#1
#4 #5
#8
0.252
±0.008
9.20
±0.20
0.79
2.54
0.100
0.031
()
0.46
±0.10
0.018
±0.004
0.060
±0.004
1.524
±0.10
0.362
±0.008
9.60
0.378 MAX
5.08
0.200
0.33
0.013
7.62
0~15°
0.300
MAX
MIN
0.25
+0.10
–0.05
0.010
+0.004
–0.002
8-DIP
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
7
Mechanical Dimensions (Continued)
Package Dimensions in millimeters
4.92 ±0.20
0.194 ±0.008
0.41 ±0.10
0.016 ±0.004
1.27
0.050
5.72
0.225
1.55 ±0.20
0.061 ±0.008
0.1~0.25
0.004~0.001
6.00 ±0.30
0.236 ±0.012
3.95 ±0.20
0.156 ±0.008
0.50 ±0.20
0.020 ±0.008
5.13
0.202 MAX
#1
#4 #5
0~8°
#8
0.56
0.022
()
1.80
0.071
MAX0.10
MAX0.004
MAX
MIN
+0.10
-0.05
0.15+0.004
-0.002
0.006
8-SOP
LM2903/LM2903I,LM393/LM393A,
LM293/LM293A
12/21/01 0.0m 001
Stock#DSxxxxxxxx
2001 Fairchild Semicond uctor Corporation
LIFE SU PP ORT POL ICY
FAIRCHILD’S PRODUCTS AR E NOT AUTHORIZED FOR USE AS C RITICAL COMPONENTS I N LIFE S UPPORT DEVICE S
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORA TION. As used he rein :
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.
2. A critical component in any component of a life support
device or syst em who se failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effec tiv ene ss.
www.fairchildsemi.com
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRO DUCTS HEREIN TO IMPROVE RELIABILITY, FUN C TION OR DESIGN . FAIRCHILD DO ES 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 RIG HTS, NOR THE RIGHTS OF OTHERS.
Ordering Information
Product Number Package Operating Temperature
LM393N 8-DIP 0 ~ + 70°C
LM393AN
LM393M 8-SOP
LM393AM
LM2903N 8-DIP -40 ~ + 85°C
LM2903M 8-SOP
LM2903IN 8-DIP -40 ~ + 105°C
LM2903IM 8-SOP
LM293N 8-DIP -25 ~ + 85°C
LM293AN
LM293M 8-SOP
LM293AM