July 2005
Revision 4
1/13
Wide single supply voltage range or dual
supplies : +2V to +36V or 1V to 18V
Very low supply current (0.4mA)
independent of supply voltage (1mW/
comparator at +5V)
Low input bias current: 25nA typ.
Low input offset current: 5nA typ.
Low input offset voltage: 1mV typ.
Input common-mode voltage range
includes ground
Low output saturation voltage: 250mV typ.
(Io = 4mA)
Differential input voltage range equal to the
supply voltage
TTL, DTL, ECL, MOS, CMOS compatible
outputs
Description
These devices consist of two independent low
voltage comparators designed specifically to
operate from a single supply over a wide range of
voltages. Operation from split power supplies is
also possible.
These comparators also have a unique
characteristic in that the input common-mode
voltage range includes ground even though
operated from a single power supply voltage.
Pin Connections (top view)
Order Codes
D
SO-8 (Plastic Micropackage)
N
DIP-8 (Plastic Package)
S
Mini SO-8 (Plastic Micropackage)
P
TSSOP8 (Thin Shrink Small Outline Package)
1
2
3
4
5
6
7
8
-
+
-
+
1 - Output 1
2 - Inverting input 1
3 - Non-inverting input 1
4 - V
CC
-
5 - Non-inverting input 2
6 - Inverting input 2
7 - Output 2
8 - V
CC
+
Part Number
Temperature Range
Package
Packaging
LM193AD/LM193ADT
-55C, +125C
SO
Tube or Tape & Reel
LM193AN
DIP
Tube
LM193D/LM193DT
SO
Tube or Tape & Reel
LM193N
DIP
Tube
LM293AD/LM293ADT
-40C, +105C
SO
Tube or Tape & Reel
LM293AN
DIP
Tube
LM293D/LM293DT
SO
Tube or Tape & Reel
LM293N
DIP
Tube
LM293PT
TSSOP
(Thin Shrink Outline Package)
Tape & Reel
LM293ST
Mini SO
Tape & Reel
LM393AD/LM393ADT
0C, +70C
SO
Tube or Tape & Reel
LM393D/LM393DT
SO
Tube or Tape & Reel
LM393N
DIP
Tube
LM393PT
TSSOP
(Thin Shrink Outline Package)
Tape & Reel
LM393ST
Mini SO
Tape & Reel
LM393YDT/YD
-40C, +125C
SO (automotive grade level)
Tube or Tape & Reel
LM193, A
LM293, A - LM393, A
Low Power Dual Voltage Comparators
LM193, A - LM293, A - LM393, A
Schematic Diagram (1/2 LM193)
2/13
1 Schematic
Diagram
(1/2 LM193)
Non-inverting
Input
Inverting
Input
3.5
A
100
A
3.5
A
100
A
CC
V
CC
V
CC
V
CC
V
O
V
Absolute Maximum Ratings
LM193, A - LM293, A - LM393, A
3/13
2 Absolute Maximum Ratings
Table 1.
Key parameters and their absolute maximum ratings
Symbol
Parameter
Value
Unit
Vcc
Supply voltage
18 or 36
V
V
id
Differential Input Voltage
36
V
Vi
Input Voltage
-0.3 to +36
V
Output Short-circuit to Ground - note
1
1)
Short-circuits from the output to V
CC
+
can cause excessive heating and eventual destruction. The maximum output current is approxi-
mately 20mA independent of the magnitude of V
CC
+
.
Infinite
P
d
Power Dissipation
2
DIP-8
SO-8
TSSOP8
Mini SO-8
2)
Pd is calculated with T
amb
= +25C, T
j
= +150C and R
thja
= 100C/W for DIP8 package
= 175C/W for SO8 package
= 200C/W for TSSOP8 package
= 215C/W for Mini SO8 package
1250
710
625
580
mW
T
stg
Storage Temperature Range
-65 to +150
C
Table 2.
Operating Conditions
Symbol
Parameter
Value
Unit
V
icm
Common Mode Input Voltage Range
0 to V
CC
+
-1.5
V
T
oper
Operating Free-Air Temperature range LM193, A
LM293, A
LM393, A
-55 to +125
-40 to +125
0 to +70
C
LM193, A - LM293, A - LM393, A
Electrical Characteristics
4/13
3 Electrical
Characteristics
Table 3.
V
CC
+
= +5V, V
CC
-
= 0V, T
amb
= +25C (unless otherwise specified)
Symbol
Parameter
LM193A - LM293A
LM393A
LM193- LM293
LM393
Unit
Min.
Typ.
Max.
Min
Typ.
Max.
V
io
Input Offset Voltage - note
1
T
amb
= +25C
T
min
T
amb
T
max
1)
At output switch point, V
o
1.4V, R
s
= 0 with V
CC
+
from 5V to 30V, and over the full common-mode range (0V to V
CC
+
-1.5V).
1
2
4
1
5
9
mV
I
io
Input Offset Current
T
amb
= +25C
T
min
T
amb
T
max
3
25
100
5
50
150
nA
I
ib
Input Bias Current (I
+
or I
-
) - note
2
T
amb
= +25C
T
min
T
amb
T
max
2)
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state
of the output, so no loading charge exists on the reference of input lines.
25
100
300
25
250
400
nA
A
vd
Large Signal Voltage Gain
V
CC
= 15V, R
L
= 15k
, V
o
= 1V to 11V
50
200
50
200
V/mV
I
CC
Supply Current (all comparators)
V
CC
= +5V, no load
V
CC
= +30V, no load
0.4
1
1
2.5
0.4
1
1
2.5
mA
V
icm
Input Common Mode Voltage Range - note
3
V
CC
= 30V
T
amb
= +25C
T
min
T
amb
T
max
3)
The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end
of the common-mode voltage range is V
CC
+
-1.5V, but either or both inputs can go to +30V without damage.
0
0
V
CC
+
-1.5
V
CC
+
-2
0
0
V
CC
+
-1.5
V
CC
+
-2
V
V
id
Differential Input Voltage -note
4
4)
The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can be obtained.
V
CC
+
V
CC
+
V
OL
Low Level Output Voltage
V
id
= -1V, I
sink
= 4mA
T
amb
= +25C
T
min
T
amb
T
max
250
400
700
250
400
700
V
I
OH
High Level Output Current (V
id
= 1V)
V
CC
= V
o
= 30V
T
amb
= +25C
T
min
T
amb
T
max
0.1
1
0.1
1
nA
A
I
SINK
Output Sink Currrent
V
id
= 1V, V
o
= 1.5V
6
16
6
16
mA
tre
Response Time - note
5
R
L
= 5.1k
connected to V
CC
+
5)
Posistive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode
range, the comparator will provide a proper output state. The low input voltage state must not be less than -0.3V (or 0.3V bellow the neg-
ative power supply, if used).
1.3
1.3
s
trel
Large Signal Response Time
R
L
= 5.1k
connected to V
CC
+
,
e
l
= TTL,
V
(ref)
= +1.4v
300
300
ns
Electrical Characteristics
LM193, A - LM293, A - LM393, A
5/13
Figure 1. Supply current vs. supply voltage
Figure 2. Output saturation voltage vs.
output current
Figure 3. Response time for various input
overdrives - positive transition
SUPPLY
C
URRENT
(mA)
1
0.8
0.6
0.4
0.2
0
10
20
30
40
SUPPLY VOLTAGE (V)
T
amb
= +70C
T
amb
= +125C
T
amb
= 0C
R =
T
amb
= +25C
T
amb
= -55C
T
amb
= +125C
Out of saturation
10
1
10
-3
10
-2
10
-1
10
0
SA
TURATION
VO
LTAGE
(
V)
10
-2
10
-1
10
0
10
1
10
2
OUTPUT SINK CURRENT (mA)
Out of saturation
T
amb
= -55C
T
amb
= +25C
5V
5.1k
e
o
e
I
6
5
4
3
2
1
0
1
00
50
INPUT
V
OL
TAGE
(mV)
OUTPUT
VOLTAG
E
(
V)
0
0.5
1
1.5
2
TIME (
s)
0
p
In ut overdrive : 100mV
T
amb
= +25C
5mV
20mV
Figure 4. Input current vs. supply voltage
Figure 5. Response time for various input
overdrives - negative transition
I
N
PU
T
C
U
R
RE
NT
(
n
A
)
20
10
20
30
40
SUPPLY VOLTAGE (V)
T
amb
= +70C
T
amb
= +125C
T
amb
= -55C
40
60
80
0
T
amb
= 0C
T
amb
= +25C
V = 0V
i
R = 10
i
9
5V
5.1k
e
o
e
I
6
5
4
3
2
0
0
-50
-100
INPUT
V
OLTAGE
(mV)
O
U
T
P
U
T
VO
L
T
A
G
E
(
V)
0
0.5
1
1.5
2
TIME (
s)
Input overdrive : 5mV
20mV
1
100mV
T
amb
= +25C
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