Overview
The LM239DRG3, produced by Texas Instruments, is a quad differential comparator integrated circuit. This device is part of the LMx39 family, known for its versatility and wide range of applications. The LM239 operates from a single power supply with a voltage range of 2 V to 36 V, making it suitable for various industrial and automotive applications. It features low input bias current, low input offset voltage, and fast response times, which are crucial for accurate voltage comparisons.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum-Rated Supply Voltage | ±36 | V |
| Input Offset Voltage | 0.37 | mV |
| Input Bias Current | 3.5 | nA |
| Supply Current per Comparator | 200 | µA |
| Response Time | 1 | µs |
| Output Saturation Voltage | Low | - |
| Output Compatibility | TTL, MOS, CMOS | - |
| Operating Temperature Range | -40°C to 125°C | - |
| Package Type | SOIC-14 | - |
| Body Size (Nominal) | 8.70 mm × 3.90 mm | - |
Key Features
- Wide Supply Voltage Range: Operates from 2 V to 36 V, making it versatile for various applications.
- Low Input Offset Voltage: 0.37 mV, ensuring high accuracy in voltage comparisons.
- Low Input Bias Current: 3.5 nA, minimizing the impact on the input signal.
- Fast Response Time: 1 µs, suitable for applications requiring quick response.
- Low Output Saturation Voltage: Ensures efficient output operation.
- Output Compatibility: Compatible with TTL, MOS, and CMOS logic.
- Open-Drain Output: Allows for flexible output configuration and AND functionality.
- Extended Temperature Range: Operates from -40°C to 125°C.
Applications
- Industrial Automation: Used in control systems, monitoring, and alarm circuits.
- Automotive Systems: Suitable for HEV/EV and power train applications.
- Power Supply Monitoring: Can be used to monitor and control power supply voltages.
- Medical Devices: Used in medical equipment for signal processing and monitoring.
- Consumer Electronics: Found in various consumer devices requiring voltage comparison and monitoring.
Q & A
- What is the maximum-rated supply voltage for the LM239DRG3?
The maximum-rated supply voltage is ±36 V.
- What is the input offset voltage of the LM239DRG3?
The input offset voltage is 0.37 mV.
- What is the response time of the LM239DRG3?
The response time is 1 µs.
- Is the LM239DRG3 compatible with TTL, MOS, and CMOS logic?
Yes, it is compatible with TTL, MOS, and CMOS logic.
- What is the operating temperature range of the LM239DRG3?
The operating temperature range is -40°C to 125°C.
- What package type is the LM239DRG3 available in?
The LM239DRG3 is available in a SOIC-14 package.
- What are some common applications of the LM239DRG3?
Common applications include industrial automation, automotive systems, power supply monitoring, medical devices, and consumer electronics.
- Does the LM239DRG3 have an open-drain output?
Yes, the LM239DRG3 has an open-drain output.
- What is the typical supply current per comparator for the LM239DRG3?
The typical supply current per comparator is 200 µA.
- Is the LM239DRG3 RoHS compliant?
Yes, the LM239DRG3 is RoHS compliant.
