This is information on a product in full production.
June 2012 Doc ID 2164 Rev 13 1/20
20
LM193, LM293, LM393
Low power dual voltage comparators
Datasheet − production data
Features
■Wide single-supply voltage range or dual
supplies: +2 V to +36 V or ±1 V to ±18 V
■Very low supply current (0.45 mA) independent
of supply voltage (1 mW/comparator at +5 V)
■Low input bias current: 20 nA typ.
■Low input offset current: ±3 nA typ.
■Low input offset voltage: ±1 mV typ.
■Input common-mode voltage range includes
ground
■Low output saturation voltage: 80 mV typ.
(Isink =4mA)
■Differential input voltage range equal to the
supply voltage
■TTL, DTL, ECL, MOS, CMOS compatible
outputs
■Available in DIP8, SO-8, TSSOP8, MiniSO-8,
and DFN8 2 x 2 mm packages
Description
The LM193, LM293, and LM393 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)
TSSOP8
(thin shrink small outline package)
MiniSO-8
(plastic micropackage)
DFN8 2 x 2 mm
(plastic micropackage)
www.st.com
Contents LM193, LM293, LM393
2/20 Doc ID 2164 Rev 13
Contents
1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Typical applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.1 DIP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4 MiniSO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.5 DFN8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
LM193, LM293, LM393 Pin connections
Doc ID 2164 Rev 13 3/20
1 Pin connections
Figure 1. Pin connections (top view)
/UT
)N
)N
6##
6##
/UT
)N
)N
!-
Schematic diagram LM193, LM293, LM393
4/20 Doc ID 2164 Rev 13
2 Schematic diagram
Figure 2. Schematic diagram (1/2 LM193)
!-
LM193, LM293, LM393 Absolute maximum ratings and operating conditions
Doc ID 2164 Rev 13 5/20
3 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
DFN8 2 x 2 mm
125
120
85
190
57
°C/W
Rthjc
Thermal resistance junction to case(2)
SO-8
TSSOP8
DIP8
MiniSO-8
DFN8 2 x 2 mm
40
37
41
39
°C/W
TjMaximum junction temperature 150 °C
Tstg Storage temperature range -65 to +150 °C
ESD
Class(3)
HBM: human body model H1B
MM: machine model M2
CDM: charged device model C5
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. ESD class definition from AEC-Q100:
HBM class H1B: ESD voltage level from 500 V to 1000 V
MM class M2: ESD voltage level from 100 V to 200 V
CDM class C5: ESD voltage level greater than 1500 V.
Table 2. Operating conditions
Symbol Parameter Value Unit
VCC Supply voltage (VCC+ - VCC-)2 to 36V
Vicm
Common mode input voltage range (VCC+= 30 V)(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
6/20 Doc ID 2164 Rev 13
4 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
350
150 nA
Iib
Input bias current (I+ or I-)(2)
Tmin ≤ T
amb ≤ T
max
20 100
300
20 250
400 nA
Avd
Large signal voltage gain
VCC = 15 V, RL = 15 kΩ, Vo = 1 V to 11 V 50 200 50 200 V/mV
ICC
Supply current (all comparators)
VCC = +5 V, no load
VCC = +30 V, no load
0.45
0.6
1
2.5
0.45
0.6
1
2.5
mA
Vid Differential input voltage(3) VCC+VCC+
VOL
Low level output voltage
Vid = -1 V, Isink = 4 mA
Tmin ≤ T
amb ≤ T
max
80 400
700
80 400
700
mV
IOH
High level output current
VCC = Vo = 30 V, Vid = 1 V
Tmin ≤ T
amb ≤ Tmax
0.1
1
0.1
1
nA
μA
Isink Output sink current Vid= 1 V, Vo = 1.5 V 6 18 6 18 mA
tre
Response time (4)
RL= 5.1 kΩ connected to VCC+1.3 1.3 μs
trel
Large signal response time
RL= 5.1 kΩ connected to VCC+
el = TTL,V(ref) = +1.4 V
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. 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).
4. The response time specified is for a 100 mV input step with 5 mV overdrive. For larger overdrive signals 300 ns can be
obtained.
LM193, LM293, LM393 Electrical characteristics
Doc ID 2164 Rev 13 7/20
Figure 3. Supply current vs. supply voltage Figure 4. Input current vs. supply voltage
!- !-
Figure 5. Output saturation voltage vs.
output current
Figure 6. Response time for various input
overdrives - negative transition
Figure 7. Response time for various input overdrives - positive transition
!- !-
6
6/54
6).

P&
!-
6
6/54
6).

P&
Typical applications LM193, LM293, LM393
8/20 Doc ID 2164 Rev 13
5 Typical applications
Figure 8. Basic comparator Figure 9. Driving TTL
6## 6
6/
6REF
6REF

,-
!-
6
6REF
6REF

,-
!-
Figure 10. Low frequency op amp Figure 11. Driving CMOS
6
EO
&
E)
! 
6
^
. 
E  6FOR E 6
)
O

,-
!-
6
6REF
6REF

,-
!-
Figure 12. Low frequency op amp Figure 13. Transducer amplifier
6
EO
&
E)
! 
6
^

,-
!-
6
K
EO
-AGNETIC PICKUP

,-
!-
LM193, LM293, LM393 Typical applications
Doc ID 2164 Rev 13 9/20
Figure 14. Low frequency op amp with offset
adjust
Figure 15. Zero crossing detector
(single power supply)
E)^. 
6
EO
2
6
/FFSET ADJUST
2S2)
&
2

,-
!-
 K
E)
6
. 
 K

,-
!-
Figure 16. Limit comparator Figure 17. Crystal controlled oscillator
 K
E)^
23
23
6REF
HIGH
23
6REF
LOW
. 
6
6##
,AMP

,-

,-
!-
&
F K(Z
EO
6
6##
6##

,-
!-
Figure 18. Split-supply applications - zero
crossing detector
Figure 19. Comparator with a negative
reference
6
EO
E)^
6

,-
!-
6
EO
E)^
6
6

,-
!-
Typical applications LM193, LM293, LM393
10/20 Doc ID 2164 Rev 13
Figure 20. Two-decade high frequency VCO
6##
/UTPUT
/UTPUT
6##
6## 
6## 
&
P&

&

&REQUENCYCONTROL
VOLTAGEINPUT
6CONTROL
6##   6
M6 6
CONTROL 6
 (Z F K(Z
O

,-

,- 
,-
!-
LM193, LM293, LM393 Package information
Doc ID 2164 Rev 13 11/20
6 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
12/20 Doc ID 2164 Rev 13
6.1 DIP8 package information
Figure 21. DIP8 package outline
Table 4. DIP8 package mechanical data
Symbol
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 5.33 0.210
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
Doc ID 2164 Rev 13 13/20
6.2 SO-8 package information
Figure 22. SO-8 package outline
Table 5. SO-8 package mechanical data
Symbol
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.75 0.069
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
14/20 Doc ID 2164 Rev 13
6.3 TSSOP8 package information
Figure 23. TSSOP8 package outline
Table 6. TSSOP8 package mechanical data
Symbol
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.20 0.047
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
Doc ID 2164 Rev 13 15/20
6.4 MiniSO-8 package information
Figure 24. MiniSO-8 package outline
Table 7. MiniSO-8 package mechanical data
Symbol
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.10.043
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
Package information LM193, LM293, LM393
16/20 Doc ID 2164 Rev 13
6.5 DFN8 package information
Figure 25. DFN8 2 x 2 x 0.6 mm package outline (pitch 0.5 mm)
Table 8. DFN8 2 x 2 x 0.6 mm package mechanical data (pitch 0.5 mm)
Symbol
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 0.51 0.55 0.60
A1 0.05
A3 0.15
b 0.18 0.25 0.30
D 1.85 2.00 2.15
D2 1.45 1.60 1.70
E 1.85 2.00 2.15
E2 0.75 0.90 1.00
e0.50
L0.50
ddd 0.08
LM193, LM293, LM393 Package information
Doc ID 2164 Rev 13 17/20
Figure 26. DFN8 2 x 2 footprint recommendation
Ordering information LM193, LM293, LM393
18/20 Doc ID 2164 Rev 13
7 Ordering information
Table 9. Order codes
Order code Temperature range Package Packing Marking
LM193AD
LM193ADT
-55 °C, +125 °C
SO-8 Tube or
tape and reel
193A
LM193D
LM193DT 193
LM193AN DIP8 Tube LM193AN
LM193N LM193N
LM293AD
LM293ADT
-40 °C, +105 °C
SO-8 Tube or
tape and reel
293A
LM293D
LM293DT 293
LM293AN
DIP8 Tube
LM293AN
LM293N LM293N
LM293PT TSSOP8 Tape and reel 293
LM293ST MiniSO-8 Tape and reel K512
LM293QT DFN8 2 x 2 Tape and reel K59
LM393AD
LM393ADT
0 °C, +70 °C
SO-8 Tube or
tape and reel
393A
LM393D
LM393DT 393
LM393AN DIP8 Tube LM393AN
LM393N LM393N
LM393PT TSSOP8 Tape and reel 393
LM393ST MiniSO-8 Tape and reel M393
LM393QT DFN8 2 x 2 Tape and reel K5C
LM193, LM293, LM393 Revision history
Doc ID 2164 Rev 13 19/20
8 Revision history
Table 10. 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 7: Ordering
information on page 18.
02-Jul-2005 4 Modification on PPAP references - Errors on part numbers, see
Table 7: Ordering information on page 18.
22-Nov-2005 5 Modification on Table 3 on page 6. 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 6.
23-Aug-2007 7
Corrected error in DIP8 package information related to lead
thickness, see Figure 21 on page 12.
Added values for Rthja and Rthjc, and ESD parameters in Ta bl 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 5.
22-Feb-2010 11 Deleted automotive grade order codes for LM293 and LM393.
22-Jun-2011 12
Updated typical performance curves.
Updated typical values onTable 3 on page 6.
Updated ESD parameters with ESD classes in Ta bl e 1 : A b s o l u t e
maximum ratings.
Added DFN8 2x2mm package mechanical drawing.
Added DFN8 2x2mm recommended footprint.
Added DFN8 2x2mm order codes in Table 9 .
27-Jun-2012 13
Updated Features (added package information), Description (added
RPNs), Figure 1: Pin connections (top view) moved to page 3, added
Contents, updated marking of the LM293QT device in Table 9, minor
text corrections throughout document.
LM193, LM293, LM393
20/20 Doc ID 2164 Rev 13
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