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LM139, LM239 & LM339 Quad Voltage Comparators

STMicroelectronics LM139, LM239, and LM339 Low-Power Quad Voltage Comparators consist of four independent precision-voltage comparators with an offset voltage specification as low as 2 mV. These Low-Power Quad Voltage Comparators have been designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible. STMicroelectronics' Low-Power Quad Voltage 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.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Number of Channels	Output Type	Response Time	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 Lo Pwr QUAD Vltg COMPARATOR LM339APT STMicroelectronics 1: € 0,31 42 845In Stock	Mfr. Part No. LM339APT Mouser Part No 511-LM339APT	STMicroelectronics	Analog Comparators Lo Pwr QUAD Vltg COMPARATOR Learn More about STMicroelectronics stm standard products	Datasheet	42 845In Stock	Cut Tape € 0,31 € 0,212 € 0,189 € 0,163 Reel € 0,115 View € 0,151 € 0,144 € 0,138 € 0,114 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Low power quad voltage comparators LM139ADT STMicroelectronics 1: € 1,20 3 871In Stock	Mfr. Part No. LM139ADT Mouser Part No 511-LM139ADT	STMicroelectronics	Analog Comparators Low power quad voltage comparators Learn More about STMicroelectronics stmlmx39	Datasheet	3 871In Stock	Cut Tape € 1,20 € 0,869 € 0,783 € 0,692 Reel € 0,577 View € 0,648 € 0,623 € 0,594 € 0,563 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	- 55 C	+ 125 C	LM139	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339DT STMicroelectronics 1: € 0,249 21 006In Stock 47 500Expected 18/01/2027	Mfr. Part No. LM339DT Mouser Part No 511-LM339DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	21 006In Stock 47 500Expected 18/01/2027	Cut Tape € 0,249 € 0,175 € 0,154 € 0,131 Reel € 0,101 View € 0,12 € 0,114 € 0,108 € 0,098 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339PT STMicroelectronics 1: € 0,318 31 961In Stock	Mfr. Part No. LM339PT Mouser Part No 511-LM339P	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	31 961In Stock	Cut Tape € 0,318 € 0,218 € 0,194 € 0,168 View Reel € 0,133 € 0,155 € 0,147 € 0,141 € 0,133 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Low PWR Quad Volt 1.1 mA 25nA 250mV LM139DT STMicroelectronics 1: € 1,44 2 037In Stock 4 800Expected 29/10/2026	Mfr. Part No. LM139DT Mouser Part No 511-LM139DT	STMicroelectronics	Analog Comparators Low PWR Quad Volt 1.1 mA 25nA 250mV Learn More about STMicroelectronics stmlmx39	Datasheet	2 037In Stock 4 800Expected 29/10/2026	Cut Tape € 1,44 € 1,06 € 0,963 € 0,851 View Reel € 0,476 € 0,801 € 0,77 € 0,765 € 0,476 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 55 C	+ 125 C	LM139	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM239ADT STMicroelectronics 1: € 0,378 5 420In Stock 12 500On Order	Mfr. Part No. LM239ADT Mouser Part No 511-LM239ADT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	5 420In Stock 12 500On Order On Order Ship Dates Mfr. No: LM239ADT Stock: 5 420 Can Dispatch Immediately On Order: 5 000 Expected 05/11/2026 7 500 Expected 27/01/2027 Factory Lead Time: 30 Weeks	Cut Tape € 0,378 € 0,262 € 0,234 € 0,205 View Reel € 0,151 € 0,189 € 0,181 € 0,171 € 0,151 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM239APT STMicroelectronics 1: € 0,413 4 190In Stock 5 000Expected 25/11/2026	Mfr. Part No. LM239APT Mouser Part No 511-LM239AP	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	4 190In Stock 5 000Expected 25/11/2026	Cut Tape € 0,413 € 0,292 € 0,261 € 0,226 Reel € 0,183 View € 0,21 € 0,204 € 0,194 € 0,171 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM239D STMicroelectronics 1: € 0,525 3 646In Stock 2 000Expected 09/11/2026	Mfr. Part No. LM239D Mouser Part No 511-LM239D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	3 646In Stock 2 000Expected 09/11/2026	€ 0,525 € 0,373 € 0,372 € 0,323 View € 0,30 € 0,286 € 0,274 € 0,26 € 0,234	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 25 C	+ 85 C	LM239	Tube
Analog Comparators Lo-Pwr Quad Voltage LM239DT STMicroelectronics 1: € 0,525 1 952In Stock	Mfr. Part No. LM239DT Mouser Part No 511-LM239DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	1 952In Stock	Cut Tape € 0,525 € 0,372 € 0,334 € 0,291 View Reel € 0,237 € 0,27 € 0,258 € 0,248 € 0,237 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators LP Quad 2mV 1.1mA 25nA 4 Precision LM239QT STMicroelectronics 1: € 0,499 1 301In Stock 69 000On Order	Mfr. Part No. LM239QT Mouser Part No 511-LM239QT	STMicroelectronics	Analog Comparators LP Quad 2mV 1.1mA 25nA 4 Precision Learn More about STMicroelectronics stm standard products	Datasheet	1 301In Stock 69 000On Order On Order Ship Dates Mfr. No: LM239QT Stock: 1 301 Can Dispatch Immediately On Order: 27 000 Expected 24/11/2026 42 000 Expected 12/05/2027 Factory Lead Time: 30 Weeks	Cut Tape € 0,499 € 0,358 € 0,322 € 0,283 View Reel € 0,239 € 0,263 € 0,251 € 0,241 € 0,239 MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	QFN-16	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339D STMicroelectronics 1: € 0,413 119In Stock 4 000Expected 17/11/2026	Mfr. Part No. LM339D Mouser Part No 511-LM339D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	119In Stock 4 000Expected 17/11/2026	€ 0,413 € 0,299 € 0,28 € 0,25 View € 0,235 € 0,227 € 0,207	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Tube
Analog Comparators Low Power QUAD 1.1 mA 25nA 250mV LM339QT STMicroelectronics 1: € 0,413 250In Stock 131 500On Order	Mfr. Part No. LM339QT Mouser Part No 511-LM339QT	STMicroelectronics	Analog Comparators Low Power QUAD 1.1 mA 25nA 250mV Learn More about STMicroelectronics stm standard products	Datasheet	250In Stock 131 500On Order On Order Ship Dates Mfr. No: LM339QT Stock: 250 Can Dispatch Immediately On Order: 102 000 Expected 29/10/2026 29 500 Expected 02/11/2026 Factory Lead Time: 30 Weeks	Cut Tape € 0,413 € 0,287 € 0,256 € 0,23 View Reel € 0,188 € 0,218 € 0,21 € 0,204 € 0,188 MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	QFN-16	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339ADT STMicroelectronics 1: € 0,31 17 500On Order	Mfr. Part No. LM339ADT Mouser Part No 511-LM339ADT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	17 500On Order On Order Ship Dates Mfr. No: LM339ADT Stock: 0 On Order: 10 000 Expected 02/11/2026 7 500 Expected 22/03/2027 Factory Lead Time: 30 Weeks	Cut Tape € 0,31 € 0,215 € 0,192 € 0,165 View Reel € 0,132 € 0,152 € 0,145 € 0,138 € 0,132 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	0 C	+ 70 C	LM339	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM239PT STMicroelectronics 1: € 0,396 9 850On Order	Mfr. Part No. LM239PT Mouser Part No 511-LM239P	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	9 850On Order On Order Ship Dates Mfr. No: LM239PT Stock: 0 On Order: 4 850 Expected 14/12/2026 5 000 Expected 14/05/2027 Factory Lead Time: 30 Weeks	Cut Tape € 0,396 € 0,274 € 0,244 € 0,211 Reel € 0,167 View € 0,195 € 0,185 € 0,177 € 0,162 MouseReel Available	Min.: 1 Mult.: 1 : 2 500	SMD/SMT	TSSOP-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	5 mV	250 nA	- 40 C	+ 105 C	LM239	Reel, Cut Tape, MouseReel
Analog Comparators Lo-Pwr Quad Voltage LM339AD STMicroelectronics 1: € 0,49 4 972On Order	Mfr. Part No. LM339AD Mouser Part No 511-LM339AD	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	4 972On Order On Order Ship Dates Mfr. No: LM339AD Stock: 0 On Order: 972 Expected 17/11/2026 4 000 Expected 10/02/2027 Factory Lead Time: 30 Weeks	€ 0,49 € 0,338 € 0,302 € 0,262 View € 0,243 € 0,232 € 0,213 € 0,204 € 0,20	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14	4 Channel	CMOS, DTL, ECL, MOS, TTL	1.3 us	Differential	2 V	32 V	2 mA	4 mA	2 mV	100 nA	0 C	+ 70 C	LM339	Tube

LM139, LM239 & LM339 Quad Voltage Comparators

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