LM319 High Speed Dual Comparator

Contents hide

LM319 is a High Speed Dual Voltage Comparator. These types of comparators possess higher gain and lower input currents than devices like the LM710. The IC has a distinct advantage over conventional comparators in terms of operating efficiency. The output of the IC always comes in TTL which makes it easy to work with other TTL devices and microcontrollers. The IC also offers a wide range of applications such as high operating speed, fan-in/fan-out capabilities, and low production cost, etc.

Voltage Comparator

A voltage comparator is a simple electronic circuit that has the capability to compare two applied voltages. The comparator then switches the output to either high or low state depending upon which voltage is higher. Comparator circuits are widely used in applications, where physical measurements need to be compared, provided those physical variables can be translated into voltage signals. In a practical voltage comparator; the reference voltage is set using the voltage divider network comprising of R1 and R2.

Vref = (V+/ (R1 + R2)) x R2.

LM319 Pinout

LM319 Pin Configuration

Pin No	Pin Name	Description
1	NC	No Connection
2	NC	No Connection
3	GND 1	Ground Pin 1
4	NON-INV-INPUT 1	Non Inverting Input Of Comparator 1
5	INV-INPUT 1	Inverting Input Of Comparator 1
6	V-	Negative Supply Voltage
7	OUTPUT 2	Output Of Comparator 2
8	GND 2	Ground Pin 2
9	NON-INV-INPUT 2	Non Inverting Input Of Comparator 2
10	INV-INPUT 2	Inverting Input Of Comparator 2
11	V+	Positive Supply Voltage
12	OUTPUT 1	Output Of Comparator 1
13	NC	No Connection
14	NC	No Connection