LM2901NSR

Product Overview

Category: Integrated Circuits (ICs)

Use: LM2901NSR is a quad voltage comparator designed to operate from a single power supply over a wide range of voltages. It is commonly used in applications that require analog signal comparisons, such as threshold detection, level shifting, and waveform generation.

Characteristics: - Quad voltage comparator - Wide operating voltage range - Low input bias current - Low output saturation voltage - High output sink current capability

Package: LM2901NSR is available in a small outline package (SOIC) with 14 pins.

Essence: The essence of LM2901NSR lies in its ability to compare different input voltages and provide corresponding digital outputs based on the comparison results.

Packaging/Quantity: LM2901NSR is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 36V
• Input Offset Voltage: ±2mV
• Input Bias Current: ±25nA
• Output Sink Current: 16mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

LM2901NSR has 14 pins arranged as follows:

```

---

| | --|IN1 | --|IN2 | --|IN3 | --|IN4 | --|GND | --|OUT1 | --|OUT2 | --|OUT3 | --|OUT4 | --|VCC+ | --|NC | --|NC | --|NC | |___________| ```

Functional Features

• Quad voltage comparator with open-drain outputs
• Internal hysteresis for improved noise immunity
• Low input offset voltage for accurate comparisons
• Wide supply voltage range allows for versatile applications
• High output sink current capability for driving various loads

Advantages and Disadvantages

Advantages: - Versatile and widely used in various analog signal comparison applications - Wide operating voltage range enables compatibility with different power supplies - Low input bias current minimizes the impact on the compared signals - Open-drain outputs provide flexibility in interfacing with other circuitry

Disadvantages: - Limited number of comparators (4) in a single package - Not suitable for applications requiring high-speed comparisons

Working Principles

LM2901NSR works by comparing the voltages applied to its input pins and producing digital outputs based on the comparison results. The internal circuitry amplifies and compares the input voltages, and the open-drain outputs drive the corresponding logic levels based on the comparison results.

Detailed Application Field Plans

LM2901NSR finds applications in various fields, including: 1. Threshold detection circuits 2. Level shifting circuits 3. Waveform generation circuits 4. Battery monitoring systems 5. Motor control circuits 6. Power supply monitoring circuits

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LM2901NSR are: 1. LM339N 2. LM324N 3. LM393N 4. LM311N 5. TLV3701

These models offer similar functionality and characteristics, providing options for different design requirements.

In conclusion, LM2901NSR is a quad voltage comparator widely used in analog signal comparison applications. Its versatile features, wide operating voltage range, and low input bias current make it suitable for various circuit designs. However, it has limitations in terms of the number of comparators and speed. Alternative models like LM339N and LM324N can be considered based on specific design requirements.