LM393D Quad Voltage Comparator
Overview
The LM393D is a monolithic integrated circuit that contains four independent voltage comparators. It is designed for applications where high speed, low power consumption, and economical requirements are critical.
Features
* Four independent voltage comparators
* Maximum input voltage range: ±30 V
* Open-collector outputs
* Offset voltage: 2 mV typical
* Input bias current: 2 nA typical
* Propagation delay: 200 ns typical
Pinout
«`
+——+
1 | 1 8 | 16
2 | 2 9 | 15
3 | 3 10 | 14
4 | 4 11 | 13
+——+
«`
| Pin | Function |
|—|—|
| 1 | Positive input, Comparator 1 |
| 2 | Negative input, Comparator 1 |
| 3 | Output, Comparator 1 |
| 4 | Positive input, Comparator 2 |
| 5 | Negative input, Comparator 2 |
| 6 | Output, Comparator 2 |
| 7 | Positive input, Comparator 3 |
| 8 | Negative input, Comparator 3 |
| 9 | Output, Comparator 3 |
| 10 | Positive input, Comparator 4 |
| 11 | Negative input, Comparator 4 |
| 12 | Output, Comparator 4 |
| 13 | VCC (positive supply) |
| 14 | GND (ground) |
| 15 | VEE (negative supply) |
| 16 | NC (not connected) |
Applications
* Zero-crossing detectors
* Peak detectors
* Window comparators
* Level shifters
* Frequency comparators
* Pulse generators
Additional Notes
* The LM393D is available in 16-pin DIP, SOIC, and MSOP packages.
* It has an operating temperature range of -55°C to 125°C.
* The open-collector outputs require pull-up resistors to function properly.
* The LM393D can be used in a variety of analog signal applications where voltage comparisons are needed.
