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 V oltage: 2.0 mV (max) LM393A
5.0 mV (max) LM293/393
• Input Common Mode Range to Ground Level
• Differential Input V oltage 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
SINGLE SUPPLY, LOW POWER
DUAL COMPARATORS
SEMICONDUCTOR
TECHNICAL DATA
8
1
N SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
Representative Schematic Diagram
(Diagram shown is for 1 comparator)
F1
R1
4.6 k
V
CC
R4
Q3
2.0 k
Q1
+ Input– InputOutput
R2
2.1 k
Q4
Q5
Q8
Q2
Q9
MOTOROLA ANALOG IC DEVICE DATA
Q6
Q10
Q11
Q12
Q15
Q14
Q16
PIN CONNECTIONS
–
+
8
V
CC
7
Output B
6
5
Inputs B
Output A
Inputs A
Gnd
1
2
–
+
3
4
(Top View)
ORDERING INFORMATION
Operating
Device
LM293D
LM393D
LM393AN,N
LM2903D
LM2903N
LM2903VD
LM2903VN
Motorola, Inc. 1996Rev 1
Temperature Range
TA = –25° to +85°C
TA = 0° to +70°C
TA = –40° to +105°C
TA = –40° to +105°C
Package
SO–8
SO–8
Plastic DIP
SO–8
Plastic DIP
SO–8
Plastic DIP
1
LM393, LM393A, LM293, LM2903, LM2903V
MAXIMUM RATINGS
RatingSymbolValueUnit
Power Supply VoltageV
Input Differential Voltage RangeV
Input Common Mode Voltage RangeV
Output Short Circuit–to–GroundI
Output Sink Current (Note 1)I
Power Dissipation @ TA = 25°CP
Derate above 25°C1/R
Operating Ambient Temperature RangeT
CC
IDR
ICR
SC
Sink
D
θJA
A
LM293–25 to +85
LM393, 393A0 to +70
LM2903–40 to +105
LM2903V–40 to +125
Maximum Operating Junction TemperatureT
J(max)
LM393, 393A, 2903, LM2903V125
LM293150
Storage Temperature RangeT
stg
+36 or ±18Vdc
–0.3 to +36Vdc
ContinuousmA
–65 to +150°C
36Vdc
20
570mW
5.7mW/°C
°C
°C
ELECTRICAL CHARACTERISTICS (V
= 5.0 Vdc, T
CC
≤ TA ≤ T
low
,* unless otherwise noted.)
high
LM393A
CharacteristicSymbol
Input Offset Voltage (Note 2)V
IO
MinTypMax
TA = 25°C–±1.0±2.0
T
≤ TA ≤ T
low
high
Input Offset CurrentI
IO
––4.0
TA = 25°C–±50±50
T
≤ TA ≤ T
low
high
Input Bias Current (Note 3)I
IB
––±150
TA = 25°C–25250
T
≤ TA ≤ T
low
high
Input Common Mode Voltage Range (Note 4)V
ICR
––400
TA = 25°C0–VCC –1.5
T
≤ TA ≤ T
low
high
Voltage Gain RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°CA
VOL
0–VCC –2.0
50200–V/mV
Large Signal Response Time––300–ns
Vin = TTL Logic Swing, V
= 1.4 Vdc
ref
VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C
Response Time (Note 5) VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°Ct
Input Differential Voltage (Note 6)
All Vin ≥ Gnd or V– Supply (if used)
Output Sink Current
Vin ≥ 1.0 Vdc, V
= 0 Vdc, VO ≤ 1.5 Vdc, TA = 25°C
in+
Output Saturation VoltageV
Vin ≥ 1.0 Vdc, V
T
≤ TA ≤ T
low
*T
= 0°C, T
low
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
high
heating and eventual destruction.
2.At output switch point, VO]
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.
= 0 Vdc, I
in+
Sink
high
= +70°C for LM393/393A
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).
≤ 4.0 mA, TA = 25°C–150400
TLH
V
I
Sink
ID
OL
–1.3–µs
––V
CC
6.016–mA
––700
Unit
mV
nA
nA
V
V
mV
2
MOTOROLA ANALOG IC DEVICE DATA
LM393, LM393A, LM293, LM2903, LM2903V
ELECTRICAL CHARACTERISTICS (V
= 5.0 Vdc, T
CC
≤ TA ≤ T
low
,* unless otherwise noted.)
high
LM393A
CharacteristicSymbol
Output Leakage CurrentI
V
in–
V
in–
= 0 V, V
= 0 V, V
≥ 1.0 Vdc, VO = 5.0 Vdc, TA= 25°C–0.1–
in+
≥ 1.0 Vdc, VO = 30 Vdc, T
in+
≤ TA ≤ T
low
high
Supply CurrentI
OL
CC
MinTypMax
––1.0
RL = ∞ Both Comparators, TA = 25°C–0.41.0
RL = ∞ Both Comparators, VCC = 30 V–1.02.5
ELECTRICAL CHARACTERISTICS (V
= 5.0 Vdc, T
CC
≤ TA ≤ T
low
, unless otherwise noted.)
high
LM392, LM393LM2903, LM2903V
CharacteristicSymbol
Input Offset Voltage (Note 2)V
MinTypMaxMinTypMax
IO
TA = 25°C–±1.0±5.0–±2.0±7.0
T
≤ TA ≤ T
low
high
Input Offset CurrentI
IO
––9.0–9.015
TA = 25°C–±5.0±50–±5.0±50
T
≤ TA ≤ T
low
high
Input Bias Current (Note 3)I
IB
––±150–±50±200
TA = 25°C–25250–25250
T
≤ TA ≤ T
low
high
Input Common Mode Voltage Range (Note 3)V
ICR
––400–200500
TA = 25°C0–VCC –1.50–VCC –1.5
T
≤ TA ≤ T
low
high
Voltage GainA
VOL
0–VCC –2.00–VCC –2.0
50200–25200–V/mV
RL ≥ 15 kΩ, VCC = 15 Vdc, TA = 25°C
Large Signal Response Time––300––300–ns
Vin = TTL Logic Swing, V
= 1.4 Vdc
ref
VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C
Response Time (Note 5)t
TLH
–1.3––1.5–µs
VRL = 5.0 Vdc, RL = 5.1 kΩ, TA = 25°C
Input Differential V oltage (Note 6)V
ID
––V
CC
––V
CC
All Vin ≥ Gnd or V– Supply (if used)
Output Sink CurrentI
Vin ≥ 1.0 Vdc, V
= 0 Vdc, VO ≤ 1.5 Vdc TA = 25°C
in+
Output Saturation VoltageV
Vin ≥ 1.0 Vdc, V
T
≤ TA ≤ T
low
high
in+
= 0, I
≤ 4.0 mA, TA = 25°C–150400––400
Sink
Output Leakage CurrentI
V
in–
V
in–
= 0 V, V
= 0 V, V
T
low
≤ TA ≤ T
≥ 1.0 Vdc, VO = 5.0 Vdc, TA = 25°C–0.1––0.1–
in+
≥ 1.0 Vdc, VO = 30 Vdc,
in+
high
Supply CurrentI
Sink
OL
OL
CC
6.016–6.016–mA
––700–200700
––1000––1000
RL = ∞ Both Comparators, TA = 25°C–0.41.0–0.41.0
RL = ∞ Both Comparators, VCC = 30 V––2.5––2.5
*T
= 0°C, T
low
LM293 T
low
LM2903 T
LM2903V T
NOTES: 2. At output switch point, VO]
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
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
= +70°C for LM393/393A
high
= –25°C, T
= –40°C, T
low
= –40°C, T
low
fore, no loading changes will exist on the input lines.
range. The low input state must not be less than –0.3 V of ground or minus supply.
high
high
= +85°C
= +105°C
= +125°C
high
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).
Unit
µA
mA
Unit
mV
nA
nA
V
V
mV
nA
mA
MOTOROLA ANALOG IC DEVICE DATA
3
LM393, LM393A, LM293, LM2903, LM2903V
LM293/393,ALM2903
Figure 1. Input Bias Current versus
Power Supply Voltage
80
70
60
50
40
TA = +25° C
30
20
IB
I , INPUT BIAS CURRENT (nA)
TA = +125°C
10
0
05.010152025303540
VCC, SUPPLY VOLTAGE (Vdc)VCC, SUPPLY VOLTAGE (Vdc)
Figure 3. Output Saturation Voltage
versus Output Sink Current
10
1.0
0.1
TA = +25°C
Out of
Saturation
TA = +125°C
TA = –55° C
TA = –55° C
TA = 0° C
TA = +70°C
Figure 2. Input Bias Current versus
Power Supply Voltage
80
70
60
50
40
30
20
IB
I , INPUT BIAS CURRENT (nA)
10
0
05.010152025303540
TA = –40° C
TA = 0° C
TA = +25° C
TA = +85° C
Figure 4. Output Saturation Voltage
versus Output Sink Current
10
1.0
0.1
TA = +85°C
TA = +25° C
Out of
Saturation
0.01
OL
V , SATURATION VOLTAGE (Vdc)
0.001
1.0
0.8
0.6
0.4
CC
I , SUPPLY CURRENT (mA)
0.2
0.01
0.11.010100
I
, OUTPUT SINK CURRENT (mA)I
Sink
Figure 5. Power Supply Current versus
Power Supply Voltage
TA = –55° C
RL =
0
5.010152025303540
VCC, SUPPLY VOLTAGE (Vdc)VCC, SUPPLY VOLTAGE (Vdc)
TA = 0° C
TA = +25° C
TA = +70°C
TA = +125°C
R
0.01
OL
V , SATURATION VOLTAGE (Vdc)
0.001
0.010.11.010100
TA = –40°C
, OUTPUT SINK CURRENT (mA)
Sink
TA = 0°C
Figure 6. Power Supply Current versus
Power Supply Voltage
RL =
TA = –40° C
TA = 0° C
TA = +25° C
TA = +85° C
R
1.2
1.0
0.8
0.6
CC
I , SUPPLY CURRENT (mA)
0.4
05.010152025303540
4
MOTOROLA ANALOG IC DEVICE DATA
LM393, LM393A, LM293, LM2903, LM2903V
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.
Figure 7. Zero Crossing Detector
(Single Supply)
+15 V
R1
8.2 k
V
in
R1
D1
D1 prevents input from going negative by more than 0.6 V.
R3
R4
220 k
6.8 k
R2
≤R5for small error in zero crossing.
10
R5
220 k
15 k
R3
R1 + R2 = R3
10 k
*
LM393
)
10 M
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 8. Zero Crossing Detector
(Split Supply)
V
V
in
+V
CC
*
V
in
LM393
)
–V
EE
V
[ 0.4 V peak for 1% phase distortion (∆Θ).
in(min)
10 k
– V
V
CC
V
O
EE
in(min)
Θ
Θ
∆Θ
Figure 9. Free–Running Square–Wave Oscillator
1.0 M
Ω
V
CC
0.001 µF
51 k
51 k
–
LM393
+
51 k
V
CC
V
0
V
CC
R
L
10 k
V
O
O
t
Figure 11. Comparator with Hysteresis
R
S
V
R1
ref
–
LM393
+
R2
Figure 10. Time Delay Generator
V
CC
t
–
LM393
+
‘‘ON’’ for t
where:
V
CC
R
L
tO + ∆t
∆
t = RC ȏ n (
RS = R1 | | R2
V
= V
th1
ref
V
= V
th2
ref
V
C
V
ref
V
CC
(VCC –V
+
R1 + R2 + R
(V
ref
–
R
–
LM393
C
)
–VO Low) R1
+ V
) R1
ref
R1 + R2
+
ref
L
V
CC
R
L
V
O
V
V
in
ref
0
V
O
0
V
V
C
ref
0
t
ȏ
O
t
MOTOROLA ANALOG IC DEVICE DATA
5
LM393, LM393A, LM293, LM2903, LM2903V
OUTLINE DIMENSIONS
NOTE 2
A
C
–T–
SEATING
PLANE
H
E
B
A1
58
14
F
–A–
N
D
G
0.13 (0.005)B
D
58
0.25MB
1
H
4
e
A
B
SS
A0.25MCB
–B–
C
SEATING
PLANE
N SUFFIX
PLASTIC PACKAGE
CASE 626–05
ISSUE K
L
J
K
M
A
T
M
M
M
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.
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.
MILLIMETERS
DIMMINMAX
A1.351.75
A10.100.25
B0.350.49
C0.180.25
D4.805.00
E
3.804.00
1.27 BSCe
H5.806.20
h
0.250.50
L0.401.25
0 7
q
__
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
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Opportunity/Affirmative Action Employer.
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6
◊
MOTOROLA ANALOG IC DEVICE DATA
LM393/D
*LM393/D*
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