LM2904N/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Operational Amplifier

Characteristics: - Dual operational amplifier - Low power consumption - Wide supply voltage range - High input impedance - Output short-circuit protection - Internal frequency compensation

Package: DIP-8 (Dual In-Line Package 8 pins)

Essence: The LM2904N/NOPB is a dual operational amplifier that provides high-performance amplification for various applications.

Packaging/Quantity: Available in tubes or reels, with 50 units per tube/reel.

Specifications

• Supply Voltage Range: ±1.5V to ±15V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 20nA (maximum)
• Input Offset Current: 2nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Slew Rate: 0.3V/µs (typical)
• Common Mode Rejection Ratio: 70dB (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM2904N/NOPB has a DIP-8 package with the following pin configuration:

___________ Vcc | 1 8 | Vout Vin-| 2 7 | Vin+ Gnd | 3 6 | NC NC | 4 5 | NC -----------

Functional Features

• Dual operational amplifier allows for independent operation of two amplifiers within a single package.
• Low power consumption makes it suitable for battery-powered devices.
• Wide supply voltage range enables compatibility with various power sources.
• High input impedance minimizes loading effects on the signal source.
• Output short-circuit protection prevents damage to the amplifier in case of a short circuit.
• Internal frequency compensation simplifies external circuitry requirements.

Advantages and Disadvantages

Advantages: - Dual amplifier configuration provides flexibility in circuit design. - Low power consumption extends battery life in portable devices. - Wide supply voltage range allows for compatibility with different power sources. - High input impedance minimizes signal degradation. - Output short-circuit protection enhances reliability.

Disadvantages: - Limited gain bandwidth product compared to some other operational amplifiers. - Slew rate may not be sufficient for high-speed applications. - Common mode rejection ratio could be improved for better noise rejection.

Working Principles

The LM2904N/NOPB is based on a differential amplifier configuration, which amplifies the difference between the two input voltages. It utilizes internal frequency compensation to achieve stable operation without requiring external components. The output voltage is proportional to the difference between the input voltages, multiplied by the amplifier's gain.

Detailed Application Field Plans

The LM2904N/NOPB is widely used in various applications, including: 1. Audio amplification circuits 2. Signal conditioning circuits 3. Active filters 4. Voltage followers 5. Comparators 6. Oscillators 7. Sensor interfaces

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LM2904N/NOPB are: - LM358 - TL072 - NE5532 - OP07 - AD822

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

In conclusion, the LM2904N/NOPB is a versatile dual operational amplifier that offers low power consumption, wide supply voltage range, and high input impedance. Its compact DIP-8 package makes it suitable for various applications, including audio amplification, signal conditioning, and active filters. While it has some limitations in terms of gain bandwidth and slew rate, alternative models are available to meet specific design needs.