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LM339 – Voltage Comparator IC

Product Code: CIC011
Category: IC's

Brand: China

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Availability: Stock Available

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LM339 – Voltage Comparator IC

LM339 is a voltage comparator IC from LMx39x series and is manufactured by many industries. The devices consist of four independent voltage comparators that are designed to operate from a single power supply. Also operation from dual supplies is possible, as long as the difference between the two supplies is 2 V to 36 V.

LM339 Pin Configuration

LM339 is a 14 pin device as shown in above pin diagram. Here we will name the pinout of all four comparators on the chip and describe function of each pin.

Pin	Name	Description
1	1OUT	Output pin of the comparator 1
2	2OUT	Output pin of the comparator 2
3	VCC	Power supply
4	2IN-	Negative input pin of the comparator 2
5	2IN+	Positive input pin of the comparator 2
6	1IN-	Negative input pin of the comparator 1
7	1IN+	Positive input pin of the comparator 1
8	3IN-	Negative input pin of the comparator 3
9	3IN+	Positive input pin of the comparator 3
10	4IN-	Negative input pin of the comparator 4
11	4IN+	Positive input pin of the comparator 4
12	GND	Ground
13	4OUT	Output pin of the comparator 4
14	3OUT	Output pin of the comparator 3

The device is available in many packages; a designer can choose one depending on their requirement.

Features and Electrical Characteristics of LM339

Four individually operated voltage comparators
Low noise interference among comparators
Single Supply Operation: +3.0 V to +36 V
Dual Supply Operation: +18V and -18V
Low Input Bias Current: 25 nA
Low Input Offset Current: ±5.0 nA
Low Input Offset Voltage
Input Common Mode Voltage Range to GND
Low Output Saturation Voltage: 130 mV @ 4.0 mA
TTL and CMOS compatible
ESD Clamps on the inputs increase reliability without affecting device operation
Pb−Free, Halogen Free/BFR Free and RoHS compliant

>>Datasheet

LM339 – Voltage Comparator IC

LM339 Pin Configuration

LM339 is a 14 pin device as shown in above pin diagram. Here we will name the pinout of all four comparators on the chip and describe function of each pin.

Pin	Name	Description
1	1OUT	Output pin of the comparator 1
2	2OUT	Output pin of the comparator 2
3	VCC	Power supply
4	2IN-	Negative input pin of the comparator 2
5	2IN+	Positive input pin of the comparator 2
6	1IN-	Negative input pin of the comparator 1
7	1IN+	Positive input pin of the comparator 1
8	3IN-	Negative input pin of the comparator 3
9	3IN+	Positive input pin of the comparator 3
10	4IN-	Negative input pin of the comparator 4
11	4IN+	Positive input pin of the comparator 4
12	GND	Ground
13	4OUT	Output pin of the comparator 4
14	3OUT	Output pin of the comparator 3

The device is available in many packages; a designer can choose one depending on their requirement.

Features and Electrical Characteristics of LM339

Four individually operated voltage comparators
Low noise interference among comparators
Single Supply Operation: +3.0 V to +36 V
Dual Supply Operation: +18V and -18V
Low Input Bias Current: 25 nA
Low Input Offset Current: ±5.0 nA
Low Input Offset Voltage
Input Common Mode Voltage Range to GND
Low Output Saturation Voltage: 130 mV @ 4.0 mA
TTL and CMOS compatible
ESD Clamps on the inputs increase reliability without affecting device operation
Pb−Free, Halogen Free/BFR Free and RoHS compliant

>>Datasheet

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