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NJM311

Manufacturer: JRC

PRECISION VOLTAGE COMPARATOR

Partnumber Manufacturer Quantity Availability
NJM311 JRC 957 In Stock

Description and Introduction

PRECISION VOLTAGE COMPARATOR The **NJM311** is a high-performance voltage comparator integrated circuit (IC) designed for precision applications in analog and mixed-signal circuits. Manufactured by New Japan Radio (NJR), this component is widely recognized for its reliability, low power consumption, and fast response time, making it suitable for a variety of industrial, automotive, and consumer electronics applications.  

Featuring a single comparator with an open-collector output, the NJM311 operates over a wide supply voltage range, typically from **±15V** or a single **5V** to **30V** supply. Its low input bias current and offset voltage ensure accurate signal comparison, while its high-speed response minimizes propagation delays—critical for real-time control systems.  

The NJM311 is commonly used in applications such as **level detection, waveform shaping, pulse-width modulation (PWM), and analog-to-digital conversion**. Its robust design includes built-in protections against output short circuits, enhancing durability in demanding environments.  

Engineers favor the NJM311 for its balance of performance and cost-effectiveness, making it a preferred choice in both prototyping and mass production. Available in standard packages like **DIP-8 and SOP-8**, it integrates seamlessly into various circuit designs while maintaining consistent performance across temperature variations.  

For designers seeking a dependable comparator with proven stability, the NJM311 remains a trusted solution in modern electronics.

Application Scenarios & Design Considerations

PRECISION VOLTAGE COMPARATOR

Alternative Part Number

  • LM311 --: Industry-standard voltage comparator with the same open-collector output and differential input function as the NJM311, widely available and pin-compatible in most packages.
  • TL311 --: Single voltage comparator offering similar input offset and response characteristics, suitable as a direct functional replacement for the NJM311.
  • LM393 --: Dual voltage comparator that can replace the NJM311 in many circuits when only one section is used, with comparable open-collector output and supply range.

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