LM193, A
LM293, A - LM393, A
Low Power Dual Voltage Comparators
■
■
■
■
■
■
■
■
■
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
N
DIP-8
(Plastic Package)
D
SO-8
(Plastic Micropackage)
P
TSSOP8
(Thin Shrink Small Outline Package)
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.
S
Mini SO-8
(Plastic Micropackage)
Pin Connections (top view)
1
2
3
4
-
+
-
+
8
7
6
5
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+
Order Code
Part Number
LM193AD/LM193ADT
LM193AN
LM193D/LM193DT
LM193N
LM293AD/LM293ADT
LM293AN
LM293D/LM293DT
LM293N
LM293PT
LM293ST
LM393AD/LM393ADT
LM393D/LM393DT
LM393N
LM393PT
LM393ST
January 2005
Temperature Range
Package
SO
DIP
SO
DIP
SO
DIP
SO
DIP
TSSOP
(Thin Shrink Outline Package)
Mini SO
SO
SO
DIP
TSSOP
(Thin Shrink Outline Package)
Mini SO
Revision 2
Packaging
Tube or Tape & Reel
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Tape & Reel
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Tape & Reel
1/13
-55°C, +125°C
-40°C, +105°C
0°C, +70°C
LM193, A - LM293, A - LM393, A
Schematic Diagram (1/2 LM193)
1 Schematic Diagram
(1/2 LM193)
V
CC
3.5µA
100µA
3.5µA
100µA
Non-inverting
Input
V
CC
Inverting
Input
V
CC
V
O
V
CC
2/13
Absolute Maximum Ratings
LM193, A - LM293, A - LM393, A
2 Absolute Maximum Ratings
Table 1. Key parameters and their absolute maximum ratings
Symbol
Vcc
V
id
Vi
Supply voltage
Differential Input Voltage
Input Voltage
Output Short-circuit to Ground - note
1
Power Dissipation
2
P
d
T
stg
Storage Temperature Range
DIP-8
SO-8
TSSOP8
Mini SO-8
Parameter
Value
±18 or 36
±36
-0.3 to +36
Infinite
1250
710
625
580
-65 to +150
Unit
V
V
V
mW
°C
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+
.
2) Pd is calculated with T
amb
= +25°C, T
j
= +150°C and R
thja
= 100°C/W for DIP8 package
= 175°C/W for SO8 package
= 200°C/W for TSSOP8 package
= 215°C/W for Mini SO8 package
Table 2. Operating Conditions
Symbol
V
icm
T
oper
Parameter
Common Mode Input Voltage Range
Operating Free-Air Temperature range LM193, A
LM293, A
LM393, A
Value
0 to V
CC
+
-1.5
-55 to +125
-40 to +125
0 to +70
Unit
V
°C
3/13
LM193, A - LM293, A - LM393, A
Electrical Characteristics
3 Electrical Characteristics
Table 3. V
CC+
= +5V, V
CC-
= 0V, T
amb
= +25°C (unless otherwise specified)
Symbol
Parameter
Input Offset Voltage - note
1
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Input Offset Current
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Input Bias Current (I
+
or I
-
) - note
2
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Large Signal Voltage Gain
V
CC
= 15V, R
L
= 15k
Ω,
V
o
= 1V to 11V
Supply Current (all comparators)
V
CC
= +5V, no load
V
CC
= +30V, no load
Input Common Mode Voltage Range - note
3
V
CC
= 30V
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Differential Input Voltage -note
4
Low Level Output Voltage
V
id
= -1V, I
sink
= 4mA
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
High Level Output Current (V
id
= 1V)
I
OH
V
CC
= V
o
= 30V
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Output Sink Currrent
V
id
= 1V, V
o
= 1.5V
Response Time - note
5
R
L
= 5.1k
Ω
connected to V
CC+
Large Signal Response Time
R
L
= 5.1k
Ω
connected to V
CC+
, e
l
= TTL,
V
(ref)
= +1.4v
6
0.1
1
16
1.3
6
16
1.3
0.1
1
nA
µ
A
mA
50
LM193A - LM293A
LM393A
Min.
V
io
Typ.
1
Max.
2
4
25
100
100
300
50
1
2.5
LM193- LM293
LM393
Min
Typ.
1
Max.
5
9
50
150
250
400
mV
Unit
I
io
3
5
nA
I
ib
25
25
nA
A
vd
I
CC
200
0.4
1
200
0.4
1
1
2.5
V/mV
mA
V
icm
0
0
V
CC+
-1.5
V
CC+
-2
V
CC+
0
0
V
CC+
-1.5
V
CC+
-2
V
CC+
V
V
id
V
OL
250
400
700
250
400
700
V
I
SINK
tre
µ
s
trel
1)
2)
3)
4)
5)
300
300
ns
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).
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.
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.
The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals 300ns can be obtained.
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).
4/13
Electrical Characteristics
Figure 1. Supply current vs. supply voltage
LM193, A - LM293, A - LM393, A
Figure 4. Input current vs. supply voltage
1
80
T
amb
= -55°C
SUPPLY CURRENT (mA)
V
i
= 0V
INPUT CURRENT (nA)
0.8
0.6
0.4
T
amb
= 0°C
T
amb
= +25°C
T
amb
= +70°C
60
40
20
R = 10
9
Ω
i
T
amb
= -55°C
T
amb
= 0°C
T
amb
= +25°C
T
amb
= +125°C
0.2
R =
T
amb
= +125°C
T
amb
= +70°C
0
10
20
30
SUPPLY VOLTAGE (V)
40
0
10
20
30
SUPPLY VOLTAGE (V)
40
Figure 2. Output saturation voltage vs.
output current
Figure 5. Response time for various input
overdrives - negative transition
SATURATION VOLTAGE (V)
10
10
10
10
10
1
Out of saturation
0
T
amb
= +125°C
-1
T
amb
= -55°C
-2
T
amb
= +25°C
-3
-2
-1
0
1
2
6
5
4
3
2
1
0
0
-50
-100
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (mV)
Input overdrive : 5mV
20mV
e
I
5V
5.1kΩ
e
o
100mV
T
amb
= +25°C
0
0.5
1
1.5
TIME (µs)
2
10
10
10
10
10
OUTPUT SINK CURRENT (mA)
Figure 3. Response time for various input
overdrives - positive transition
6
1 5
4
3
2
1
0
00
50
0
OUTPUT VOLTAGE (V)
INPUT VOLTAGE (mV)
Input overdrive : 100mV
5mV
20mV
e
I
e
o
5V
5.1k
Ω
T
amb
= +25°C
0
0.5
1
1.5
TIME (µs)
2
5/13
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