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LOW VOLTAGE, LOW POWER CMOS VOLTAGE COMPARATOR
GENERAL DESCRIPTION
ELM742X is a low voltage and low power CMOS comparator developed for battery-operated devices. ELM742X makes it easy to design power circuits and contributes to extend battery life on account of the single power source, low voltage supply operating range (VDD +1.0V) and also low power consumption. ELM742X introduces depletion transistors into the differential input stage, and has a wide input voltage range (VSS+0.1V VDD 0.2V), and can drive the TTL and CMOS Logic IC on account of the N-ch opendrain output.
FEATURES
Low voltage operation Low power consumption Wide operation voltage range Wide input voltage range Output stage is N-ch opendrain type Very small SOT-25 package : VDD +1.0V : IDD (TYP.) = 0.6 A (VDD = 1.5V) : 1.0V VDD 7.0V : VSS 0.1V VDD 0.2V
APPLICATION
Battery operated devices Micropower signal processing Low voltage analog circuits
PIN CONFIGURATION
Pin No. 1 2 3 4 5 Pin Name IN VDD IN OUT VSS
MARKING
No.
Mark A 09 09
Contents ELM742X Lot No. Lot No.
SELECTION GUIDE
Symbol
81
LOW VOLTAGE, LOW POWER CMOS VOLTAGE COMPARATOR ELM742X
MAXIMUM ABSOLUTE RATINGS
Parameter Symbol Limits Units
ELECTRICAL CHARACTERISTICS
Parameter Symbol Conditions Min. Typ. Max. Units Remarks
82
LOW VOLTAGE, LOW POWER CMOS VOLTAGE COMPARATOR ELM742X
TYPICAL OPERATING CHARACTERISTICS
ISS - VDD
16 VOUT="L" 12 10 8
IOUT - VDD
(VOL=0.4V)
IOUT (mA)
VOUT="H" 0 2 4 6 8
6 4 2
ISS ( A)
8
4
0
2
4
6
8
VDD (V)
VDD (V)
tHL,tLH - VDD
200 80 150
tHL,tLH - T op
tHL,tLH (s)
100
tHL
tHL,tLH (s)
60
tHL
40
50 tLH
20
tLH
0 0 2 4 6 -20 0 20 40 60 80
VDD (V)
T op (
)
83

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