Device Operating
Temperature Range Package
SEMICONDUCTOR
TECHNICAL DATA
SINGLE SUPPLY, LOW POWER
DUAL COMPARATORS
ORDERING INFORMATION
LM293D
LM393D
TA = –25° to +85°C
TA = 0° to +70°C
SO–8
Plastic DIP
PIN CONNECTIONS
Order this document by LM393/D
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
N SUFFIX
PLASTIC PACKAGE
CASE 626
1
1
8
8
(Top View)
Gnd
Inputs A Inputs B
Output B
Output A VCC
–
–
+
+
1
2
3
4
8
7
6
5
LM393AN,N
LM2903D
LM2903N TA = –40° to +105°CSO–8
Plastic DIP
SO–8
LM2903VD
LM2903VN TA = –40° to +105°CSO–8
Plastic DIP
1
MOTOROLA ANALOG IC DEVICE DATA
The LM393 series are dual independent precision voltage comparators
capable of single or split supply operation. These devices are designed to
permit a common mode range–to–ground level with single supply operation.
Input offset voltage specifications as low as 2.0 mV make this device an
excellent selection for many applications in consumer automotive, and
industrial electronics.
•Wide Single–Supply Range: 2.0 Vdc to 36 Vdc
•Split–Supply Range: ±1.0 Vdc to ±18 Vdc
•Very Low Current Drain Independent of Supply Voltage: 0.4 mA
•Low Input Bias Current: 25 nA
•Low Input Offset Current: 5.0 nA
•Low Input Offset Voltage: 2.0 mV (max) LM393A
5.0 mV (max) LM293/393
•Input Common Mode Range to Ground Level
•Differential Input Voltage Range Equal to Power Supply Voltage
•Output Voltage Compatible with DTL, ECL, TTL, MOS, and CMOS Logic
Levels
•ESD Clamps on the Inputs Increase the Ruggedness of the Device
without Affecting Performance
Representative Schematic Diagram
(Diagram shown is for 1 comparator)
VCC + Input – Input Output
Q3 R4 Q4 Q5
R2
Q6 Q14
Q16
Q15
Q12
Q11
Q10
Q9
Q8
Q2
Q1
F1 2.0 k
2.1 k
R1
4.6 k
Motorola, Inc. 1996 Rev 1
LM393, LM393A, LM293, LM2903, LM2903V
2MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
Rating Symbol Value Unit
Power Supply Voltage VCC +36 or ±18 Vdc
Input Differential Voltage Range VIDR 36 Vdc
Input Common Mode Voltage Range VICR –0.3 to +36 Vdc
Output Short Circuit–to–Ground ISC Continuous mA
Output Sink Current (Note 1) ISink 20
Power Dissipation @ TA = 25°C PD570 mW
Derate above 25°C 1/RθJA 5.7 mW/°C
Operating Ambient Temperature Range T A°C
LM293 –25 to +85
LM393, 393A 0 to +70
LM2903 –40 to +105
LM2903V –40 to +125
Maximum Operating Junction Temperature TJ(max) °C
LM393, 393A, 2903, LM2903V 125
LM293 150
Storage Temperature Range Tstg –65 to +150 °C
ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤TA ≤ Thigh,* unless otherwise noted.)
Ch i i
Sbl
LM393A
Ui
Characteristic Symbol Min Typ Max Unit
Input Offset Voltage (Note 2) VIO mV
TA = 25°C – ±1.0 ±2.0
Tlow ≤TA ≤ Thigh – – 4.0
Input Offset Current IIO nA
TA = 25°C – ±50 ±50
Tlow ≤TA ≤ Thigh – – ±150
Input Bias Current (Note 3) IIB nA
TA = 25°C – 25 250
Tlow ≤TA ≤ Thigh – – 400
Input Common Mode Voltage Range (Note 4) VICR V
TA = 25°C 0 – VCC –1.5
Tlow ≤TA ≤ Thigh 0 – VCC –2.0
Voltage Gain RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°C AVOL 50 200 – V/mV
Large Signal Response T ime – – 300 – ns
Vin = TTL Logic Swing, Vref = 1.4 Vdc
VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C
Response T ime (Note 5) VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C tTLH –1.3 – µs
Input Differential Voltage (Note 6)
All Vin ≥ Gnd or V– Supply (if used) VID – – VCC V
Output Sink Current
Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc, TA = 25°CISink 6.0 16 – mA
Output Saturation Voltage VOL mV
Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, ISink ≤ 4.0 mA, TA = 25°C – 150 400
Tlow ≤TA ≤ Thigh – – 700
*Tlow = 0°C, Thigh = +70°C for LM393/393A
NOTES: 1.The maximum output current may be as high as 20 mA, independent of the magnitude of VCC, output short circuits to VCC can cause excessive
heating and eventual destruction.
2.At output switch point, VO
]
1.4 Vdc, RS = 0 Ω with VCC from 5.0 Vdc to 30 Vdc, and over the full input common mode range (0 V to VCC = –1.5 V).
3.Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant, independent of the output state, there
fore, no loading changes will exist on the input lines.
4.Input common mode of either input should not be permitted to go more than 0.3 V negative of ground or minus supply. The upper limit of common
mode range is VCC –1.5 V.
5.Response time is specified with a 100 mV step and 5.0 mV of overdrive. With larger magnitudes of overdrive faster response times are obtainable.
6.The comparator will exhibit proper output state if one of the inputs becomes greater than VCC, the other input must remain within the common mode
range. The low input state must not be less than –0.3 V of ground or minus supply.
LM393, LM393A, LM293, LM2903, LM2903V
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤TA ≤ Thigh,* unless otherwise noted.)
Ch i i
Sbl
LM393A
Ui
Characteristic Symbol Min Typ Max Unit
Output Leakage Current IOL µA
Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA= 25°C – 0.1 –
Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc, Tlow ≤TA ≤ Thigh – – 1.0
Supply Current ICC mA
RL = ∞ Both Comparators, TA = 25°C – 0.4 1.0
RL = ∞ Both Comparators, VCC = 30 V – 1.0 2.5
ELECTRICAL CHARACTERISTICS (VCC = 5.0 Vdc, Tlow ≤TA ≤ Thigh, unless otherwise noted.)
Ch i i
Sbl
LM392, LM393 LM2903, LM2903V
Ui
Characteristic Symbol Min Typ Max Min Typ Max Unit
Input Offset Voltage (Note 2) VIO mV
TA = 25°C – ±1.0 ±5.0 – ±2.0 ±7.0
Tlow ≤TA ≤ Thigh – – 9.0 – 9.0 15
Input Offset Current IIO nA
TA = 25°C – ±5.0 ±50 – ±5.0 ±50
Tlow ≤TA ≤ Thigh – – ±150 – ±50 ±200
Input Bias Current (Note 3) IIB nA
TA = 25°C – 25 250 – 25 250
Tlow ≤TA ≤ Thigh – – 400 – 200 500
Input Common Mode Voltage Range (Note 3) VICR V
TA = 25°C 0 – VCC –1.5 0 – VCC –1.5
Tlow ≤TA ≤ Thigh 0 – VCC –2.0 0 – VCC –2.0
Voltage Gain AVOL 50 200 – 25 200 – V/mV
RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°C
Large Signal Response T ime – – 300 – – 300 – ns
Vin = TTL Logic Swing, Vref = 1.4 Vdc
VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C
Response T ime (Note 5) t TLH –1.3 – – 1.5 – µs
VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C
Input Differential Voltage (Note 6) VID – – VCC – – VCC V
All Vin ≥ Gnd or V– Supply (if used)
Output Sink Current ISink 6.0 16 – 6.0 16 – mA
Vin ≥ 1.0 Vdc, Vin+ = 0 Vdc, VO ≤ 1.5 Vdc TA = 25°C
Output Saturation Voltage VOL mV
Vin ≥ 1.0 Vdc, Vin+ = 0, ISink ≤ 4.0 mA, TA = 25°C – 150 400 – – 400
Tlow ≤TA ≤ Thigh – – 700 – 200 700
Output Leakage Current IOL nA
Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 5.0 Vdc, TA = 25°C – 0.1 – – 0.1 –
Vin– = 0 V, Vin+ ≥ 1.0 Vdc, VO = 30 Vdc,
Tlow ≤TA ≤ Thigh – – 1000 – – 1000
Supply Current ICC mA
RL = ∞ Both Comparators, TA = 25°C – 0.4 1.0 – 0.4 1.0
RL = ∞ Both Comparators, VCC = 30 V – – 2.5 – – 2.5
*Tlow = 0°C, Thigh = +70°C for LM393/393A
LM293 Tlow = –25°C, Thigh = +85°C
LM2903 Tlow = –40°C, Thigh = +105°C
LM2903V Tlow = –40°C, Thigh = +125°C
NOTES: 2.At output switch point, VO
]
1.4 Vdc, RS = 0 Ω with VCC from 5.0 Vdc to 30 Vdc, and over the full input common mode range (0 V to VCC = –1.5 V).
3.Due to the PNP transistor inputs, bias current will flow out of the inputs. This current is essentially constant, independent of the output state, there
fore, no loading changes will exist on the input lines.
5.Response time is specified with a 100 mV step and 5.0 mV of overdrive. With larger magnitudes of overdrive faster response times are obtainable.
6.The comparator will exhibit proper output state if one of the inputs becomes greater than VCC, the other input must remain within the common mode
range. The low input state must not be less than –0.3 V of ground or minus supply.
LM393, LM393A, LM293, LM2903, LM2903V
4MOTOROLA ANALOG IC DEVICE DATA
LM293/393,A LM2903
Figure 1. Input Bias Current versus
Power Supply Voltage Figure 2. Input Bias Current versus
Power Supply Voltage
Figure 3. Output Saturation Voltage
versus Output Sink Current Figure 4. Output Saturation Voltage
versus Output Sink Current
Figure 5. Power Supply Current versus
Power Supply Voltage Figure 6. Power Supply Current versus
Power Supply Voltage
VCC, SUPPLY VOLTAGE (Vdc) VCC, SUPPLY VOLTAGE (Vdc)
VCC, SUPPLY VOLTAGE (Vdc) VCC, SUPPLY VOLTAGE (Vdc)
ISink, OUTPUT SINK CURRENT (mA) ISink, OUTPUT SINK CURRENT (mA)
I , INPUT BIAS CURRENT (nA)
IB
V , SATURATION VOLTAGE (Vdc)
OL
I , SUPPLY CURRENT (mA)
CC
80
70
60
50
40
30
20
10
00 5.0 10 15 20 25 30 35 40
80
70
60
50
40
30
20
10
00 5.0 10 15 20 25 30 35 40
10
1.0
0.1
0.01
0.001
0.01 0.1 1.0 10 100
1.0
0.8
0.6
0.4
0.2
05.0 10 15 20 25 30 35 40
1.2
0.4
10
1.0
0.1
0.01
0.001
0.01 0.1 1.0 10 100
0 5.0 10 15 20 25 30 35 40
TA = 0
°
C
TA = +25
°
C TA = +25
°
C
TA = +85
°
C
TA = –40
°
C
TA = +70
°
C
TA = +125
°
C
RL =
R
TA = 0
°
C
TA = +25
°
C
TA = +25
°
C
TA = 0
°
C
TA = +25
°
C
TA = –40
°
C
TA = –40
°
C
TA = 0
°
C
TA = +25
°
C
TA = +85
°
C
1.0
0.8
0.6
I , SUPPLY CURRENT (mA)
CC V , SATURATION VOLTAGE (Vdc)
OL I , INPUT BIAS CURRENT (nA)
IB
TA = +125
°
C
RL =
R
TA = –55
°
C
TA = +70
°
C
TA = +125
°
C
TA = –55
°
C
Out of
Saturation
TA = +85
°
C
Out of
Saturation
TA = –55
°
C
TA = 0
°
C
LM393, LM393A, LM293, LM2903, LM2903V
5
MOTOROLA ANALOG IC DEVICE DATA
APPLICATIONS INFORMATION
These dual comparators feature high gain, wide
bandwidth characteristics. This gives the device oscillation
tendencies if the outputs are capacitively coupled to the
inputs via stray capacitance. This oscillation manifests itself
during output transitions (VOL to VOH). To alleviate this
situation, input resistors <10 kΩ should be used.
The addition of positive feedback (<10 mV) is also
recommended. It is good design practice to ground all
unused pins.
Differential input voltages may be larger than supply
voltage without damaging the comparator ’s inputs. Voltages
more negative than –0.3 V should not be used.
Figure 7. Zero Crossing Detector
(Single Supply) Figure 8. Zero Crossing Detector
(Split Supply)
Figure 9. Free–Running Square–Wave Oscillator Figure 10. Time Delay Generator
Figure 11. Comparator with Hysteresis
10
D1 prevents input from going negative by more than 0.6 V.
R1 + R2 = R3
R3
≤
R5 for small error in zero crossing.
Vin
10 k
D1
R1
8.2 k
6.8 k
R2
15 k
R3
+15 V
10 M
R5
220 k
R4
220 k
LM393
Vin(min)
[
0.4 V peak for 1% phase distortion (
∆Θ
).
*
Θ
+VCC
10 k
Vin
–VEE
Vin Vin(min)
VCC
VO
– VEE
∆Θ
Θ
LM393
–
+
LM393
51 k
51 k 51 k
RL
10 k
VCC
VCC
VCC
VO
VO
t
0
1.0 M
Ω
0.001
µ
F–
+
LM393
VCC VCC
VO
Vin
VO
+ Vref
Vref
Vref
0
0
0
VC
tO
t
‘‘ON’ ’ for t
tO +
∆
t
where:
∆
t = RC
ȏ
n ( Vref
VCC )
R RL
VC C
LM393
–
+
RS
VCC
RL
V ref R1
R2
RS = R1 | | R2
Vth1 = Vref + (VCC –Vref) R1
R1 + R2 + RL
Vth2 = Vref – (Vref –VO Low) R1
R1 + R2
R1
t
ȏ
–
+
LM393
)
*
)
LM393, LM393A, LM293, LM2903, LM2903V
6MOTOROLA ANALOG IC DEVICE DATA
OUTLINE DIMENSIONS
NOTES:
1. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
2. PACKAGE CONTOUR OPTIONAL (ROUND OR
SQUARE CORNERS).
3. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
14
58
F
NOTE 2 –A–
–B–
–T–
SEATING
PLANE
H
J
GDK
N
C
L
M
M
A
M
0.13 (0.005) B M
T
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A9.40 10.16 0.370 0.400
B6.10 6.60 0.240 0.260
C3.94 4.45 0.155 0.175
D0.38 0.51 0.015 0.020
F1.02 1.78 0.040 0.070
G2.54 BSC 0.100 BSC
H0.76 1.27 0.030 0.050
J0.20 0.30 0.008 0.012
K2.92 3.43 0.115 0.135
L7.62 BSC 0.300 BSC
M––– 10 ––– 10
N0.76 1.01 0.030 0.040
__
D SUFFIX
PLASTIC PACKAGE
CASE 751–05
(SO–8)
ISSUE R
N SUFFIX
PLASTIC PACKAGE
CASE 626–05
ISSUE K
SEATING
PLANE
14
58
A0.25 MCBSS
0.25 MBM
h
q
C
X 45
_
L
DIM MIN MAX
MILLIMETERS
A1.35 1.75
A1 0.10 0.25
B0.35 0.49
C0.18 0.25
D4.80 5.00
E1.27 BSCe3.80 4.00
H5.80 6.20
h
0 7
L0.40 1.25
q
0.25 0.50
__
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. DIMENSIONS ARE IN MILLIMETERS.
3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE MOLD
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
D
EH
A
Be
B
A1
CA
0.10
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “T ypical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other
applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury
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arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
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Opportunity/Af firmative Action Employer .
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LM393/D
*LM393/D*
◊
