Overview
The LM339APWR is a quad differential comparator manufactured by Texas Instruments. This integrated circuit is designed for a wide range of applications, including voltage monitoring, signal conditioning, and analog-to-digital conversion. The LM339APWR is part of the LM339 series, known for its precision, low power consumption, and versatility. It is housed in a TSSOP-14 package, making it suitable for space-constrained designs. The target user groups include engineers and designers in industries such as automotive, industrial automation, and consumer electronics.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 4 | - | Quad comparator |
| Supply Voltage | 2 to 36 | V | Single or dual supply |
| Input Offset Voltage | ±2 | mV | Maximum |
| Input Bias Current | 25 | nA | Typical |
| Response Time | 1.3 | µs | Typical |
| Operating Temperature Range | -40 to 125 | °C | Industrial grade |
| Package | TSSOP-14 | - | Surface mount |
| Output Type | Open Collector | - | Compatible with TTL and CMOS |
Key Features
- Low Power Consumption: Ideal for battery-operated devices.
- Wide Supply Voltage Range: Operates from 2V to 36V, supporting single or dual supplies.
- High Precision: Low input offset voltage ensures accurate comparisons.
- Open Collector Outputs: Flexible interfacing with TTL and CMOS logic.
- Industrial Temperature Range: Suitable for harsh environments.
Applications
The LM339APWR is widely used in various applications, including:
- Voltage Monitoring: Detects overvoltage or undervoltage conditions in power supplies.
- Signal Conditioning: Processes analog signals for further digital processing.
- Analog-to-Digital Conversion: Acts as a comparator in ADC circuits.
- Automotive Systems: Used in battery management and sensor interfacing.
- Industrial Control: Implements logic functions and threshold detection.
Q & A
1. What is the supply voltage range of the LM339APWR?
The LM339APWR operates from 2V to 36V, supporting both single and dual supply configurations.
2. What is the typical response time of the LM339APWR?
The typical response time is 1.3 µs.
3. Is the LM339APWR suitable for automotive applications?
Yes, it is designed to operate in industrial temperature ranges, making it suitable for automotive systems.
4. What type of output does the LM339APWR have?
It features open collector outputs, compatible with TTL and CMOS logic.
5. What is the input offset voltage of the LM339APWR?
The maximum input offset voltage is ±2 mV.
6. Can the LM339APWR be used in battery-powered devices?
Yes, its low power consumption makes it ideal for battery-operated applications.
7. What is the package type of the LM339APWR?
It is housed in a TSSOP-14 package.
8. What is the input bias current of the LM339APWR?
The typical input bias current is 25 nA.
9. How many comparators are included in the LM339APWR?
It contains four independent comparators.
10. Is the LM339APWR suitable for industrial environments?
Yes, it operates in a temperature range of -40°C to 125°C, making it suitable for industrial applications.
