Overview
The LM2903DGKRG4 is a dual voltage comparator from Texas Instruments, part of the LM339 family. This component is widely used for its flexibility, availability, and cost-effectiveness. The LM2903 is available in various packages, including the DGKRG4, which is a 8-pin VSSOP package. The device is known for its high performance and reliability, making it suitable for a broad range of applications.
Key Specifications
| Specification | Value | Units |
|---|---|---|
| Supply Voltage | 2 to 36 | V |
| Total Supply Current (5V to 36V max) | 0.6 to 0.8 | mA |
| Temperature Range | -40 to 125 | °C |
| ESD (HBM) | 2000 | V |
| Offset Voltage (Max over temp) | ± 4 | mV |
| Input Bias Current (typ / max) | 3.5 / 25 | nA |
| Response Time (typ) | 1 | µsec |
Key Features
- High Voltage Range: The LM2903 can operate over a wide supply voltage range of 2V to 36V, making it versatile for various applications.
- Low Offset Voltage: The device features a low offset voltage, typically ±4mV over temperature, ensuring accurate comparisons.
- Low Supply Current: It consumes a low total supply current of 0.6 to 0.8 mA, which is beneficial for power-sensitive designs.
- High ESD Protection: The LM2903 includes dedicated ESD protection structures, providing robust protection against electrostatic discharge.
- Compact Package: Available in a compact 8-pin VSSOP package, making it suitable for space-constrained designs.
Applications
- Industrial Automation: Used in control systems, sensors, and monitoring equipment due to its reliability and accuracy.
- Aerospace and Defense: Suitable for military and aerospace applications due to its high reliability and temperature range.
- Automotive Systems: Employed in automotive electronics for voltage monitoring, sensor interfaces, and other control functions.
- Medical Devices: Used in medical equipment for precise voltage comparisons and signal processing.
- Consumer Electronics: Found in various consumer electronics for voltage regulation and monitoring.
Q & A
- What is the supply voltage range of the LM2903?
The LM2903 can operate over a supply voltage range of 2V to 36V.
- What is the typical response time of the LM2903?
The typical response time of the LM2903 is 1 µsec.
- What is the maximum offset voltage of the LM2903 over temperature?
The maximum offset voltage of the LM2903 over temperature is ±4mV.
- What is the ESD protection level of the LM2903?
The LM2903 has an ESD protection level of 2000V (HBM).
- What are the typical applications of the LM2903?
The LM2903 is used in industrial automation, aerospace and defense, automotive systems, medical devices, and consumer electronics.
- What package options are available for the LM2903?
The LM2903 is available in several package options, including the 8-pin VSSOP package (DGKRG4).
- How does the LM2903B version differ from the classic LM2903?
The LM2903B version has improved specifications, including a wider supply voltage range up to 38V, lower offset voltage, and enhanced ESD protection compared to the classic LM2903.
- What is the temperature range of the LM2903?
The temperature range of the LM2903 is -40°C to 125°C.
- Is the LM2903 suitable for high-reliability applications?
Yes, the LM2903 has various high-reliability options, including automotive and military grades, making it suitable for high-reliability applications.
- Can the LM2903 be used in place of the classic LM339?
Yes, the LM2903B versions are designed to be drop-in replacements for the classic LM339 devices, offering equal or better performance.
