December 2008 Rev 10 1/16
16
LM193, LM293, LM393
Low power dual voltage comparators
Features
■Wide single-supply voltage range or dual
supplies: +2 V to +36 V or ±1 V to ±18 V
■Very low supply current (0.4 mA) independent
of supply voltage (1 mW/comparator at +5 V)
■Low input bias current: 25 nA typ.
■Low input offset current: ±5 nA typ.
■Low input offset voltage: ±1 mV typ.
■Input common-mode voltage range includes
ground
■Low output saturation voltage: 250 mV typ.
(Isink =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.
DIP8
(Plastic package)
SO-8
(Plastic micropackage)
Pin connections (top view)
TSSOP8
(Thin shrink small outline package)
MiniSO-8
(Plastic micropackage)
1
2
3
45
6
7
8
-
+-
+
1 - Output 1
2 - Inverting input 1
3 - Non-inverting input 1
4 - VCC-
5 - Non-inverting input 2
6 - Inverting input 2
7 - Output 2
8 - VCC+
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Schematic diagram LM193, LM293, LM393
2/16
1 Schematic diagram
Figure 1. Schematic diagam (1/2 LM193)
Non-inverting
Input
Inverting
Input
3.5μA 100μA 3.5μA 100μA
CC
V
CC
VCC
V
CC
V
O
V
LM193, LM293, LM393 Absolute maximum ratings and operating conditions
3/16
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VCC Supply voltage ±18 or 36 V
Vid Differential input voltage ±36 V
Vin Input voltage -0.3 to +36 V
Output short-circuit to ground (1) Infinite
Rthja
Thermal resistance junction to ambient(2)
SO-8
TSSOP8
DIP8
MiniSO-8
125
120
85
190
°C/W
Rthjc
Thermal resistance junction to case(2)
SO-8
TSSOP8
DIP8
MiniSO-8
40
37
41
39
°C/W
TjMaximum junction temperature 150 °C
Tstg Storage temperature range -65 to +150 °C
ESD
HBM: human body model(3) 800
VMM: machine model(4) 200
CDM: charged device model(5) 1500
1. Short-circuits from the output to VCC+ can cause excessive heating and potential destruction. The maximum output current
is approximately 20 mA independent of the magnitude of VCC+.
2. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
3. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor
between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
4. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the
device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations
while the other pins are floating.
5. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly
to the ground through only one pin. This is done for all pins.
Table 2. Operating conditions
Symbol Parameter Value Unit
VCC Supply voltage 2 to 36 V
Vicm
Common mode input voltage range (VCC+= 30V)(1)
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
0 to VCC+ -1.5
0 to VCC+ -2
V
Toper
Operating free-air temperature range
LM193, LM193A
LM293, LM293A
LM393, LM393A
-55 to +125
-40 to +105
0 to +70
°C
1. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V.
The high end of the common-mode voltage range is VCC+ -1.5 V, but either or both inputs can go to +30 V without damage.
Electrical characteristics LM193, LM293, LM393
4/16
3 Electrical characteristics
Table 3. VCC+ = +5V, VCC-= 0V, Tamb = +25°C (unless otherwise specified)
Symbol Parameter
LM193A - LM293A
LM393A
LM193- LM293
LM393 Unit
Min. Typ. Max. Min Typ. Max.
Vio
Input offset voltage (1)
Tmin ≤ T
amb ≤ T
max
12
4
15
9mV
Iio
Input offset current
Tmin ≤ T
amb ≤ T
max
325
100
550
150 nA
Iib
Input bias current (I+ or I-) (2)
Tmin ≤ T
amb ≤ T
max
25 100
300
25 250
400 nA
Avd
Large signal voltage gain
VCC = 15V, RL = 15kΩ, Vo = 1V to 11V 50 200 50 200 V/mV
ICC
Supply current (all comparators)
VCC = +5V, no load
VCC = +30V, no load
0.4
1
1
2.5
0.4
1
1
2.5
mA
Vid Differential input voltage (3) VCC+VCC+
VOL
Low level output voltage
Vid = -1V, Isink = 4mA
Tmin ≤ T
amb ≤ T
max
250 400
700
250 400
700
mV
IOH
High level output current
VCC = Vo = 30V, Vid = 1V
Tmin ≤ T
amb ≤ Tmax
0.1
1
0.1
1
nA
μA
Isink Output sink current Vid= 1V, Vo = 1.5V 6 16 6 16 mA
tre
Response time (4)
RL= 5.1kΩ connected to VCC+1.3 1.3 μs
trel
Large signal response time
RL= 5.1kΩ connected to VCC+, el = TTL,
V(ref) = +1.4v
300 300 ns
1. At output switch point, Vo ≈ 1.4 V, Rs = 0 with VCC+ from 5 V to 30 V, and over the full common-mode range (0 V to
VCC+ -1.5 V).
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.
3. The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be
obtained.
4. Positive 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
-0.3 V (or 0.3 V below the negative power supply, if used).
LM193, LM293, LM393 Electrical characteristics
5/16
Figure 2. Supply current vs. supply voltage Figure 3. Input current vs. supply voltage
SUPPLY CURRENT (mA)
1
0.8
0.6
0.4
0.2
010 20 30 40
SUPPLY VOLTAGE (V)
T
amb
=+70°C
T
amb
= +125°C
T
amb
=0°C
R=
T
amb
= +25°C
T
amb
=-55°C
INPUT CURRENT (nA)
20
10 20 30 40
SUPPLY VOLTAGE (V)
Tamb =+70°C
Tamb = +125°C
Tamb = -55°C
40
60
80
0
Tamb =0°C
Tamb=+25°C
V=0V
i
R=10
Ω
i
9
Figure 4. Output saturation voltage vs.
output current
Figure 5. Response time for various input
overdrives - negative transition
Figure 6. Response time for various input
overdrives - positive transition
Tamb = +125°C
Out of saturation
10 1
10-3
10-2
10 -1
10 0
SATURATION VOLTAGE (V)
10-2 10 -1 10 010 110 2
OUTPUT SINK CURRENT (mA)
Out of saturation
T
amb
=-55°C
Tamb=+25°C
5V
5.1k
Ω
e
o
e
I
6
5
4
3
2
0
0
-50
-100
INPUT VOLTAGE (mV)
OUTPUT VOLTAGE (V)
0 0.5 1 1.5 2
TIME (
μ
s)
Input overdrive : 5mV
20mV
1100mV
Tamb=+25°C
5V
5.1k
Ω
e
o
e
I
6
5
4
3
2
1
0
1
00
50
INPUT VOLTAGE (mV)
OUTPUT VOLTAGE (V)
0 0.5 1 1.5 2
TIME (
μ
s)
0
pIn ut overdrive : 100mV
Tamb=+25°C
5mV
20mV
Typical applications LM193, LM293, LM393
6/16
4 Typical applications
Figure 7. Basic comparator Figure 8. Driving TTL
VCC =5V
15k
Ω
VO
+V(ref)
-V(ref)
1/2
LM193
5V
10kW
+V
(ref)
-V
(ref)
&
&
1/2
LM193
Figure 9. Low frequency op-amp Figure 10. Driving CMOS
5V
15kW
e
o
0.5mF
100k
W
e
I
1k
W
A = 100
V
~
2N 2222
(e = 0V for e = 0V)
I
o
1/2
LM193
5V
100k
W
+V
(ref)
-V
(ref)
&
1/2
LM193
Figure 11. Low frequency op-amp Figure 12. Transducer amplifier
5V
15k
W
eo
0.5
m
F
100k
W
eI
1k
W
A = 100
V
~
1/2
LM193
5V
10kW
eo
20M
W
3k
W
Magnetic pick-up
10kW
1/2
LM193
LM193, LM293, LM393 Typical applications
7/16
Figure 13. Low frequency op-amp with offset
adjust
Figure 14. Zero crossing detector
(single power supply)
e
I
~
2N 2222
5V
e
o
R1
100k
W
1k
W
5V
1M
W
100k
W
1M
W
Offset Adjust
R
s
R
I15k
W
0.5
m
F
R2
1/2
LM193
100k
W
10kW
e
I
20M
W
5V
5.1k
W
1N4148
5.1k
W
5.1k
W
100k
W
1/2
LM193
Figure 15. Limit comparator Figure 16. Crystal controlled oscillator
10k
W
eI~
RS
2RS
V(ref)
high
2RS
V(ref)
low
2N 2222
(12V)
VCC
Lamp
1/2
LM193
1/2
LM193
2k
W
0.1mF
200k
W
f = 100kHz
e
o
=15V
V
CC
V
CC
0
100kW
200k
W
1/2
LM193
Figure 17. Split-supply applications - zero
crossing detector
Figure 18. Comparator with a negative
reference
15V
5.1k
W
eo
eI~
15V
1/2
LM193
15V
5.1k
W
eo
eI~
15V
5V
1/2
LM193
Typical applications LM193, LM293, LM393
8/16
Figure 19. Two-decade high-frequency VCO
V
CC
Output 1
Output 2
V
CC
100k
W
3k
W
5.1k
W
V
CC
/2
V
CC
/2
0.01
m
F
500pF
100k
W
0.1mF
20kW
50kW
Frequency control
voltage input
v
control
V
CC
=+30V
+250mV
V
control
+50V
700 Hz f 100kHz
o
20k W
3k
W
1/2
LM193
1/2
LM193
1/2
LM193
LM193, LM293, LM393 Package information
9/16
5 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
Package information LM193, LM293, LM393
10/16
5.1 DIP8 package information
Figure 20. DIP8 package mechanical drawing
Table 4. DIP8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A5.330.210
A1 0.38 0.015
A2 2.92 3.30 4.95 0.115 0.130 0.195
b 0.36 0.46 0.56 0.014 0.018 0.022
b2 1.14 1.52 1.78 0.045 0.060 0.070
c 0.20 0.25 0.36 0.008 0.010 0.014
D 9.02 9.27 10.16 0.355 0.365 0.400
E 7.62 7.87 8.26 0.300 0.310 0.325
E1 6.10 6.35 7.11 0.240 0.250 0.280
e 2.54 0.100
eA 7.62 0.300
eB 10.92 0.430
L 2.92 3.30 3.81 0.115 0.130 0.150
LM193, LM293, LM393 Package information
11/16
5.2 SO-8 package information
Figure 21. SO-8 package mechnical drawing
Table 5. SO-8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.750.069
A1 0.10 0.25 0.004 0.010
A2 1.25 0.049
b 0.28 0.48 0.011 0.019
c 0.17 0.23 0.007 0.010
D 4.80 4.90 5.00 0.189 0.193 0.197
E 5.80 6.00 6.20 0.228 0.236 0.244
E1 3.80 3.90 4.00 0.150 0.154 0.157
e 1.27 0.050
h 0.25 0.50 0.010 0.020
L 0.40 1.27 0.016 0.050
L1 1.04 0.040
k 0 8° 1° 8°
ccc 0.10 0.004
Package information LM193, LM293, LM393
12/16
5.3 TSSOP8 package information
Figure 22. TSSOP8 package mechanical drawing
Table 6. TSSOP8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.008
D 2.90 3.00 3.10 0.114 0.118 0.122
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.177
e 0.65 0.0256
k0° 8°0° 8°
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1 0.039
aaa 0.10 0.004
LM193, LM293, LM393 Package information
13/16
5.4 MiniSO-8 package information
Figure 23. MiniSO-8 package mechanical drawing
Table 7. MiniSO-8 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.1 0.043
A1 0 0.15 0 0.006
A2 0.75 0.85 0.95 0.030 0.033 0.037
b 0.22 0.40 0.009 0.016
c 0.08 0.23 0.003 0.009
D 2.80 3.00 3.20 0.11 0.118 0.126
E 4.65 4.90 5.15 0.183 0.193 0.203
E1 2.80 3.00 3.10 0.11 0.118 0.122
e 0.65 0.026
L 0.40 0.60 0.80 0.016 0.024 0.031
L1 0.95 0.037
L2 0.25 0.010
k0° 8°0° 8°
ccc 0.10 0.004
Ordering information LM193, LM293, LM393
14/16
6 Ordering information
Table 8. Order codes
Order code Temperature range Package Packing Marking
LM193AD
LM193ADT
-55°C, +125°C
SO-8 Tube or
Tape & reel
193A
LM193D
LM193DT 193
LM193AYD(1)
LM193AYDT SO-8
(Automotive grade)
Tube or
Tape & reel
193AY
LM193YD(1)
LM193YDT 193Y
LM193AN DIP8 Tube LM193AN
LM193N LM193N
LM293AD
LM293ADT
-40°C, +105°C
SO-8 Tube or
Tape & reel
293A
LM293D
LM293DT 293
LM293AYD(1)
LM293AYDT(1) SO-8
(Automotive grade)
Tube or
Tape & reel
293AY
LM293YD(1)
LM293YDT(1) 293Y
LM293AN DIP8 Tube LM293AN
LM293N LM293N
LM293PT TSSOP8 Tape & reel 293
LM293ST MiniSO-8 Tape & reel K512
LM393AD
LM393ADT
0°C, +70°C
SO-8 Tube or
Tape & reel
393A
LM393D
LM393DT 393
LM393AYD(1)
LM393AYDT(1) SO-8
(Automotive grade)
Tube or
Tape & reel
393AY
LM393YD(1)
LM393YDT(1) 393Y
LM393AN DIP8 Tube LM393AN
LM393N LM393N
LM393PT TSSOP8 Tape & reel 393
LM393ST MiniSO-8 Tape & reel M393
1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001
& Q 002 or equivalent.
LM193, LM293, LM393 Revision history
15/16
7 Revision history
Table 9. Document revision history
Date Revision Changes
02-Jul-2002 1 First release.
02-Jan-2005 2 Class A of the product included in the datasheet.
02-May-2005 3 PPAP references inserted in the datasheet, see Table 6: Ordering
information on page 14.
02-Jul-2005 4 Modification on PPAP references - Errors on part numbers, see
Table 6: Ordering information on page 14.
22-Nov-2005 5 Modification on Table 3 on page 4. LM293,A must be -40/+105°C
instead of -40/+125°C.
16-Feb-2006 6 Unit error for Vol parameter see Table 3 on page 4.
23-Aug-2007 7
Corrected error in DIP8 package information related to lead
thickness, see Figure 20 on page 10.
Added values for Rthja and Rthjc, and ESD parameters in Tabl e 1 :
Absolute maximum ratings.
08-Nov-2007 8
Updated MiniSO-8 package information.
Reformatted package information.
Added automotive grade order codes.
19-Feb-2008 9 Corrected error in SO-8 package mechanical data: E dimension in
drawing was marked with an F in table.
15-Dec-2008 10 Corrected heading in Figure 4.
LM193, LM293, LM393
16/16
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