Overview
The LM2903FJ-E2 is a dual differential comparator manufactured by Rohm Semiconductor. It is designed for a wide range of applications, including industrial, automotive, and consumer electronics. This component is known for its low power consumption, high performance, and versatility, making it a popular choice for engineers and designers.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Type | General Purpose | - | - |
| Number of Elements | 2 | - | - |
| Output Type | Open Collector | - | - |
| Supply Voltage (Single/Dual) | 3V ~ 32V, ±1.5V ~ 16V | V | - |
| Input Offset Voltage | 4.5mV @ 1.4V | mV | - |
| Input Bias Current | 0.05µA @ 1.4V | µA | - |
| Output Current | 16mA @ 5V | mA | - |
| Quiescent Current | 1mA | mA | - |
| Operating Temperature | -40°C ~ 125°C | °C | - |
| Package/Case | 8-SOIC (0.154", 3.90mm wide) | - | Surface Mount |
Key Features
- Low power consumption for energy-efficient designs.
- Wide supply voltage range, suitable for various applications.
- Open collector output for flexible interfacing with other components.
- High input impedance and low input bias current for precise signal comparison.
- Robust performance across a wide temperature range (-40°C to 125°C).
Applications
The LM2903FJ-E2 is widely used in applications such as:
- Industrial Automation: Signal conditioning and monitoring systems.
- Automotive Electronics: Battery management and sensor interfacing.
- Consumer Electronics: Power management and control circuits.
- Signal Processing: Analog-to-digital conversion and threshold detection.
Q & A
1. What is the operating voltage range of the LM2903FJ-E2?
The operating voltage range is 3V to 32V for single supply and ±1.5V to 16V for dual supply.
2. What is the output type of this comparator?
The output type is open collector, which allows for flexible interfacing with other components.
3. What is the input offset voltage?
The input offset voltage is 4.5mV at 1.4V.
4. Can this component operate in high-temperature environments?
Yes, it can operate in temperatures ranging from -40°C to 125°C.
5. What is the typical quiescent current?
The typical quiescent current is 1mA.
6. Is the LM2903FJ-E2 suitable for automotive applications?
Yes, it is suitable for automotive applications, including battery management and sensor interfacing.
7. What is the package type of this component?
The package type is 8-SOIC (0.154", 3.90mm wide), designed for surface mounting.
8. How many comparators are included in the LM2903FJ-E2?
It includes two independent comparators.
9. What is the input bias current?
The input bias current is 0.05µA at 1.4V.
10. What are the key features of the LM2903FJ-E2?
Key features include low power consumption, wide supply voltage range, open collector output, and robust performance across a wide temperature range.
