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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	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 quad voltage comparators LM139ADT STMicroelectronics 1: 1,20 € 3.938In Stock	Mfr. Part No. LM139ADT Mouser Part No 511-LM139ADT	STMicroelectronics	Analog Comparators Low power quad voltage comparators Learn More about STMicroelectronics stmlmx39	Datasheet	3.938In 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 Vltg COMPARATOR LM339APT STMicroelectronics 1: 0,31 € 45.405In 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	45.405In 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 LP Quad 2mV 1.1mA 25nA 4 Precision LM239QT STMicroelectronics 1: 0,499 € 6.803In Stock 72.000On 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	6.803In Stock 72.000On Order On Order Ship Dates Mfr. No: LM239QT Stock: 6.803 Can Dispatch Immediately On Order: 30.000 Expected 10/21/2026 42.000 Expected 5/12/2027 Factory Lead Time: 30 Weeks	Cut Tape 0,499 € 0,358 € 0,322 € 0,283 € Reel 0,239 € View 0,263 € 0,251 € 0,241 € 0,232 € 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 LM339DT STMicroelectronics 1: 0,249 € 21.168In Stock 47.500Expected 1/18/2027	Mfr. Part No. LM339DT Mouser Part No 511-LM339DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	21.168In Stock 47.500Expected 1/18/2027	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 € 36.963In 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	36.963In 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: 1,52 € 1.110In Stock 5.000Expected 10/19/2026	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	1.110In Stock 5.000Expected 10/19/2026	Cut Tape 1,52 € 1,12 € 1,01 € 0,903 € View Reel 0,464 € 0,849 € 0,816 € 0,811 € 0,464 € 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 € 224In Stock 10.000On 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	224In Stock 10.000On Order On Order Ship Dates Mfr. No: LM239ADT Stock: 224 Can Dispatch Immediately On Order: 5.000 Expected 10/14/2026 5.000 Expected 11/30/2026 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 12/10/2026	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 12/10/2026	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 € 3.656In Stock 2.000Expected 11/2/2026	Mfr. Part No. LM239D Mouser Part No 511-LM239D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	3.656In Stock 2.000Expected 11/2/2026	0,525 € 0,373 € 0,372 € 0,323 € View 0,30 € 0,286 € 0,274 € 0,26 € 0,205 €	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 € 4.342In Stock	Mfr. Part No. LM239DT Mouser Part No 511-LM239DT	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stmlmx39	Datasheet	4.342In Stock	Cut Tape 0,525 € 0,372 € 0,334 € 0,291 € View Reel 0,206 € 0,27 € 0,258 € 0,207 € 0,206 € 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 Lo-Pwr Quad Voltage LM239PT STMicroelectronics 1: 0,396 € 2.953In Stock	Mfr. Part No. LM239PT Mouser Part No 511-LM239P	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	2.953In Stock	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 LM339D STMicroelectronics 1: 0,413 € 42In Stock 8.000On Order	Mfr. Part No. LM339D Mouser Part No 511-LM339D	STMicroelectronics	Analog Comparators Lo-Pwr Quad Voltage Learn More about STMicroelectronics stm standard products	Datasheet	42In Stock 8.000On Order On Order Ship Dates Mfr. No: LM339D Stock: 42 Can Dispatch Immediately On Order: 4.000 Expected 10/1/2026 4.000 Expected 10/21/2026 Factory Lead Time: 30 Weeks	0,413 € 0,299 € 0,28 € 0,25 € 0,243 €	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 € 132.000On 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	132.000On Order On Order Ship Dates Mfr. No: LM339QT Stock: 0 On Order: 45.000 Expected 10/12/2026 57.000 Expected 10/22/2026 30.000 Expected 10/27/2026 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 12/7/2026 7.500 Expected 3/22/2027 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 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 10/21/2026 4.000 Expected 3/22/2027 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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