LM2902KNG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: Low-power, quad operational amplifier
• Package: DIP-14 (Dual In-Line Package with 14 pins)
• Essence: The LM2902KNG4 is a low-power quad operational amplifier designed for general-purpose applications.
• Packaging/Quantity: Available in tubes of 25 or reels of 2500 units.

Specifications

• Supply Voltage: ±1.5V to ±16V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 45nA (maximum)
• Input Offset Current: 5nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Slew Rate: 0.3V/µs (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM2902KNG4 has a DIP-14 package with the following pin configuration:

___________ VCC | 1 14 | OUT A IN A- | 2 13 | IN D+ IN A+ | 3 12 | IN D- VEE | 4 11 | OUT D OUT B | 5 10 | IN C- IN B- | 6 9 | IN C+ IN B+ | 7 8 | OUT C ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Low input offset voltage and bias current for accurate signal processing.
• Wide supply voltage range allows operation from single or dual power supplies.
• High gain bandwidth product and slew rate for fast signal amplification.
• Low power consumption makes it suitable for battery-powered applications.
• Short-circuit protection prevents damage to the device in case of output overload.

Advantages

• Versatile operational amplifier suitable for a wide range of applications.
• Low input offset voltage ensures accurate signal amplification.
• Wide supply voltage range allows flexibility in power supply design.
• Low power consumption extends battery life in portable devices.
• Short-circuit protection enhances reliability and durability.

Disadvantages

• Limited gain bandwidth product compared to specialized amplifiers.
• Slightly higher input bias current than some precision operational amplifiers.
• Not suitable for high-frequency applications due to limited bandwidth.

Working Principles

The LM2902KNG4 is based on a differential input stage followed by a push-pull output stage. It uses a class B output configuration to provide low distortion and high output current capability. The internal circuitry is designed to minimize input offset voltage and bias current, ensuring accurate signal amplification.

Application Field Plans

The LM2902KNG4 can be used in various applications, including:

1. Audio amplifiers
2. Signal conditioning circuits
3. Active filters
4. Voltage comparators
5. Sensor interfaces
6. Oscillators
7. Power supply control circuits

Alternative Models

Other alternative models that can be considered as replacements for the LM2902KNG4 include:

1. LM324: Quad operational amplifier with similar characteristics.
2. TL074: Low-noise JFET-input quad operational amplifier.
3. MC3403: Low-power quad operational amplifier with rail-to-rail output.

These alternative models offer similar functionality and can be used interchangeably depending on specific requirements.

In conclusion, the LM2902KNG4 is a versatile and low-power quad operational amplifier suitable for a wide range of applications. Its low input offset voltage, wide supply voltage range, and short-circuit protection make it a reliable choice for various circuit designs.