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TS391 Low-Power Single Voltage Comparators

STMicroelectronics TS391 Low-Power Single Voltage Comparators operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. The TS391 has a wide single supply voltage range or dual supplies of 2V to 36V or ±1V to ±18V. An input common-mode voltage range includes ground, even though operated from a single power supply voltage. The differential input voltage range is equal to the supply voltage.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Mounting Style	Package / Case	Number of Channels	Output Type	Response Time	Comparator Type	Supply Voltage - Min	Supply Voltage - Max	Operating Supply Current	Output Current per Channel	Vos - Input Offset Voltage	Ib - Input Bias Current	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
	Analog Comparators Low power, single voltage comparator TS391RIYLT STMicroelectronics 1: $1.25 6,537In Stock	Mfr. Part # TS391RIYLT Mouser Part # 511-TS391RIYLT	STMicroelectronics	Analog Comparators Low power, single voltage comparator Learn More about STMicroelectronics stm ts391 comparators	Datasheet	6,537In Stock	Cut Tape $1.25 $0.959 $0.88 $0.796 View Reel $0.671 $0.755 $0.732 $0.719 $0.671 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	200 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators Low power, single voltage comparator TS391AILT STMicroelectronics 1: $1.54 4,642In Stock	Mfr. Part # TS391AILT Mouser Part # 511-TS391AILT	STMicroelectronics	Analog Comparators Low power, single voltage comparator Learn More about STMicroelectronics stm ts391 comparators	Datasheet	4,642In Stock	Cut Tape $1.54 $1.11 $1.01 $0.888 Reel $0.716 View $0.831 $0.802 $0.776 $0.701 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391A	Reel, Cut Tape, MouseReel
	Analog Comparators Lo-Pwr Sngl Voltage TS391ILT STMicroelectronics 1: $0.95 23,897In Stock	Mfr. Part # TS391ILT Mouser Part # 511-TS391IL	STMicroelectronics	Analog Comparators Lo-Pwr Sngl Voltage Learn More about STMicroelectronics stm ts391 comparators	Datasheet	23,897In Stock	Cut Tape $0.95 $0.672 $0.605 $0.527 Reel $0.415 View $0.491 $0.469 $0.451 $0.405 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators Low Power 0.2mA 18 or 36V VCC Comp TS391RILT STMicroelectronics 1: $1.05 21,140In Stock 15,000Expected 2027-06-09	Mfr. Part # TS391RILT Mouser Part # 511-TS391RILT	STMicroelectronics	Analog Comparators Low Power 0.2mA 18 or 36V VCC Comp Learn More about STMicroelectronics stm ts391 comparators	Datasheet	21,140In Stock 15,000Expected 2027-06-09	Cut Tape $1.05 $0.744 $0.67 $0.586 Reel $0.464 View $0.546 $0.523 $0.503 $0.452 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators LP Single Volt Comp 18 or 36 VCC 150c TS391IQ2T STMicroelectronics 1: $2.15 202In Stock 3,000Expected 2026-11-10	Mfr. Part # TS391IQ2T Mouser Part # 511-TS391IQ2T	STMicroelectronics	Analog Comparators LP Single Volt Comp 18 or 36 VCC 150c Learn More about STMicroelectronics stm ts391 comparators	Datasheet	202In Stock 3,000Expected 2026-11-10	Cut Tape $2.15 $1.56 $1.41 $1.24 View Reel $1.03 $1.17 $1.12 $1.07 $1.03 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	DFN-8	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel
	Analog Comparators LP Single Volt 2V to 36V Comparator TS391IYLT STMicroelectronics 1: $2.13 401In Stock 18,000On Order	Mfr. Part # TS391IYLT Mouser Part # 511-TS391IYLT	STMicroelectronics	Analog Comparators LP Single Volt 2V to 36V Comparator Learn More about STMicroelectronics stm ts391 comparators	Datasheet	401In Stock 18,000On Order On Order Ship Dates Mfr. #: TS391IYLT Stock: 401 Can Ship Immediately On Order: 9,000 Expected 2026-10-08 9,000 Expected 2026-11-04 Factory Lead-Time: 30 Weeks	Cut Tape $2.13 $1.56 $1.40 $1.24 View Reel $0.864 $1.17 $0.933 $0.903 $0.864 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SMD/SMT	SOT-23-5	1 Channel	CMOS, DTL, ECL, TTL	1.3 us	Differential	2 V	36 V	500 uA	16 mA	5 mV	250 nA	- 40 C	+ 125 C	TS391	Reel, Cut Tape, MouseReel