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 |
Order Codes
| Part No | Temp: Range |
|---|---|
| LM119 | −55˚C to +125˚C |
| LM219 | −25˚C to +85˚C |
| LM319 | 0˚C to +70˚C. |
LM319 Features
- Operates from a single 5V supply
- Typically 80 ns response time at ±15V
- Minimum fan-out of 2 each side
- Maximum input current of 1 µA over temperature
- Inputs and outputs can be isolated from system ground
- High common mode slew rate
Application
Relay Driver
Window Detector
LM319 Datasheet
You can download this datasheet for LM319 High Speed Dual Comparator from the link given below:
See Also: CD4584 Hex Schmitt Trigger – Datasheet | CD4556 Dual Binary 1 of 4 Decoder Inverter – Datasheet | CD4543 BCD to 7-Segment Decoder – Datasheet
