General Description
consistsoftwoindependentprecision
voltage comparators with an offset voltage specification as
low as 2.0 mV max for two comparators which were de-
signed specifically to operate from a single power supply
over a wide range of voltages. Operation from split power
supplies is also possible and the low power supply current
drain is independent of the magnitude of the power supply
voltage. These comparators also have a unique characteris-
tic in that the input common-mode voltage range includes
ground, even though operated from a single power supply
voltage.
Application areas include limit comparators, simple analog to
digital converters; pulse, squarewave and time delay gen-
erators; wide range VCO; MOS clock timers; multivibrators
andhighvoltagedigitallogicgates.The
designed to directly interface with TTLand CMOS. When op-
eratedfrombothplusandminuspowersupplies,the
willdirectlyinterfacewithMOSlogicwheretheirlow
power drain is a distinct advantage over standard compara-
tors.
Advantages
nHigh precision comparators
nReduced V
OS
drift over temperature
nEliminates need for dual supplies
nAllows sensing near ground
nCompatible with all forms of logic
nPower drain suitable for battery operation
Features
nWide supply
— Voltage range: 2.0V to 36V
— single or dual supplies: ±1.0V to ±18V
nVery low supply current drain (0.4 mA) — independent
of supply voltage
nLow input biasing current: 25 nA
nLow input offset current: ±5nA
nMaximumoffsetvoltage:±
nInput common-mode voltage range includes ground
nDifferential input voltage range equal to the power
supply voltage
nLowoutputsaturationvoltage,:
nOutput voltage compatible with TTL, DTL, ECL, MOS
and CMOS logic systems
Wing Shing Computer Components Co., (H.K.)Ltd. Tel:(852)2341 9276 Fax:(852)2797 8153
Homepage: http://www.wingshing.com E-mail: wsccltd@hkstar.com
Dual Differential Comparators
Pin Configuration
1
WS393MX
9m V
150
mV at 4 mA
LM393
The LM393
LM393 was
DIP-8
LM393N
SOP-8 LM393M
MIN TYP MAX UNIT
Vcc = 5V to 30V 25oC25
VIC = VICR min,
Vo =1.4V
25oC550
Full range 150
25oC-25 -250
Full range -400
25oC
Vcc = 15V
Vo =1.4Vto 11.4V
RL15k to Vcc
VOH=5V,VID=1V 25oC0.1 50 nA
High-level output current VOH=30V,VID=1V Full range 1u A
25oC150 400
Low-level output voltage Full range 700
IOL
Icc RL= Vcc=5V 25oC0.8 1
Supply current Vcc=30V Full range 2.5
*Full range(MIN to MAX),for the LM393 is 0 to 70 .All characteristics are measured with
zero common-mode input voltage unless otherwise speified.
**The voltage at either input or common-mode should not be go negative by more than 0.3V.The upper
end of the common-mode voltage range is Vcc+-1.5V,but either or both inputs can go to 30V without damage
switching characteristics ,Vcc=5V,TA=25
PARAMETER MIN TYP MAX UNIT
RL connected to 5V 100mV input step with 1.3 us
through 5.1K 5-m V overdrive
CL=15pF see Note1 TTL-level input step 0.3
* CL includes probe and jig capacitance
NOTE1: The response time specified is the interval between the input step function and the instant when
the output crosses 1.4V.
electrical characteristics at specified free-air temperature, Vcc = 4 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
V10 input offset voltage mV
Full range 9
IIO Vo =1.4V nA
input offset current
IIB Vo =1.4V nA
input bias current
V1CR 0 to Vcc-1.5 V
Common-mode input voltage Full range 0 to Vcc-2.0
range** V/m V
Large-signal differential
voltage amplication
AVD 25oC50 200
IOH
VOL IOL=4mA,VID=1V mV
TEST CONDITIONS
Response time
m A
Low-level output current m A
VOL=1.5V,VID=1
V
25oC6
2
LM393
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
321
120
120
48
7
56
2
Pad N
3
4
1
V
CC . 1074 5308 #2 OUT 1074 1487 #2 IN- 646 1006 #2 IN+ 240 1005GND 100 534
#1 IN+ 240 967
919
#1 IN- 646 967
#1 OUT 1074
Chip size 1.3mm x 1.2mm
Coordinates mkm
XY
Pad Name
PAD LOCATION
3
LM393
SO-8
LM393M