LM2901DRE4

Product Overview

Category: Integrated Circuits (ICs)

Use: LM2901DRE4 is a quad differential comparator designed for use in industrial, automotive, and consumer applications. It is commonly used in voltage level detection, waveform shaping, and signal conditioning circuits.

Characteristics: - Low input offset voltage - Wide supply voltage range - Low power consumption - High output sink current capability - Rail-to-rail input and output voltage range

Package: The LM2901DRE4 is available in an SOIC-14 package, which provides ease of handling and compatibility with standard PCB manufacturing processes.

Essence: This integrated circuit serves as a high-performance comparator, offering precise comparison of analog voltages and generating digital outputs based on the comparison results.

Packaging/Quantity: The LM2901DRE4 is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2 V to 36 V
• Input Offset Voltage: ±2 mV (maximum)
• Input Bias Current: ±25 nA (maximum)
• Response Time: 1.3 μs (typical)
• Output Current: 20 mA (maximum)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM2901DRE4 features a standard SOIC-14 pin configuration:

___________ VCC | 1 14 | GND IN1 | 2 13 | OUT1 IN2 | 3 12 | OUT2 IN3 | 4 11 | OUT3 IN4 | 5 10 | OUT4 N/C | 6 9 | N/C N/C | 7 8 | N/C ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Quad differential comparator with open-drain outputs
• Wide common-mode voltage range
• Low input offset voltage and bias current
• High output sink current capability
• Internal hysteresis for noise immunity
• ESD protection on all pins

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for versatile applications - Low power consumption for energy-efficient designs - Rail-to-rail input and output voltage range enables accurate signal processing - High output sink current capability enhances driving capability

Disadvantages: - Limited number of comparators (4) in a single package - Open-drain outputs may require additional pull-up resistors in certain applications

Working Principles

The LM2901DRE4 operates by comparing the voltages applied to its input pins. It internally generates a digital output based on the comparison results. The device utilizes a differential amplifier configuration to achieve precise voltage comparison, while the open-drain outputs provide flexibility in interfacing with other circuitry.

Detailed Application Field Plans

The LM2901DRE4 finds extensive use in various applications, including but not limited to: - Voltage level detection circuits - Waveform shaping and conditioning circuits - Overvoltage/undervoltage protection systems - Battery management systems - Motor control circuits - Signal monitoring and alarm systems

Detailed and Complete Alternative Models

• LM339: Similar quad differential comparator with push-pull outputs
• LM311: Single differential comparator with higher speed and wider voltage range
• LM393: Dual differential comparator with open-drain outputs

These alternative models offer different features and specifications, allowing designers to choose the most suitable option for their specific requirements.

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