LM2901AQT14-13

Product Overview

Category: Integrated Circuit (IC)

Use: The LM2901AQT14-13 is a quad differential comparator designed for use in a wide range of applications that require precise voltage comparisons. It is commonly used in analog and digital circuits where accurate comparison of voltages is essential.

Characteristics: - Quad differential comparator - Wide supply voltage range: 2V to 36V - Low input bias current: 25nA - Low input offset voltage: 2mV - Low output saturation voltage: 250mV - High input common-mode voltage range: -0.3V to Vcc+0.3V - Operating temperature range: -40°C to +125°C

Package: The LM2901AQT14-13 is available in a small outline package (SOIC) with 14 pins.

Essence: This IC is designed to accurately compare two input voltages and provide a digital output based on the voltage difference between them.

Packaging/Quantity: The LM2901AQT14-13 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2V to 36V
• Input Offset Voltage: 2mV
• Input Bias Current: 25nA
• Output Current: 20mA
• Response Time: 1.3μs
• Common Mode Rejection Ratio: 70dB
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM2901AQT14-13 has a total of 14 pins, which are assigned specific functions as follows:

1. IN1-: Non-inverting input for comparator 1
2. IN1+: Inverting input for comparator 1
3. Vcc: Positive supply voltage
4. OUT1: Output for comparator 1
5. GND: Ground reference
6. IN2-: Non-inverting input for comparator 2
7. IN2+: Inverting input for comparator 2
8. OUT2: Output for comparator 2
9. IN3-: Non-inverting input for comparator 3
10. IN3+: Inverting input for comparator 3
11. OUT3: Output for comparator 3
12. IN4-: Non-inverting input for comparator 4
13. IN4+: Inverting input for comparator 4
14. OUT4: Output for comparator 4

Functional Features

The LM2901AQT14-13 offers the following functional features:

• Quad differential comparators in a single package
• Wide supply voltage range allows for versatile applications
• Low input bias current ensures accurate voltage comparisons
• High input common-mode voltage range enables compatibility with various signal levels
• Fast response time for real-time applications
• Low output saturation voltage minimizes power dissipation

Advantages and Disadvantages

Advantages: - Compact and integrated design saves board space - Wide supply voltage range allows for flexibility in different applications - Accurate voltage comparison with low input offset voltage and bias current - High input common-mode voltage range enhances versatility - Fast response time for real-time applications

Disadvantages: - Limited number of comparators (4) in a single package - May not be suitable for applications requiring a higher number of comparators

Working Principles

The LM2901AQT14-13 operates based on the principle of comparing two input voltages and providing a digital output based on the voltage difference between them. Each comparator within the IC compares the voltage at its non-inverting input (IN+) with the voltage at its inverting input (IN-). The output of each comparator is determined by this voltage comparison, and it switches to a high or low state accordingly.

Detailed Application Field Plans

The LM2901AQT14-13 finds applications in various fields where accurate voltage comparisons are required. Some of the common application areas include:

1. Battery Management Systems: Voltage monitoring and protection circuits in battery management systems.
2. Motor Control: Speed control and position sensing circuits in motor control systems.
3. Power Supplies: Overvoltage and undervoltage protection circuits in power supply units.
4. Signal Conditioning: Analog signal conditioning circuits for precise measurements.
5. Industrial Automation: Comparator-based control circuits in industrial automation systems.

Detailed and Complete Alternative Models

1. LM339: Quad differential comparator with similar specifications and pin configuration.
2. LM324: Quad operational amplifier with built-in comparators, suitable for voltage comparison applications.
3. LM393: Dual differential comparator with lower power consumption and similar functionality.

These alternative models offer similar features and can be used as substitutes for the LM2901A