LM4250CN

Product Overview

Category: Integrated Circuit (IC)

Use: Operational Amplifier

Characteristics: - High gain bandwidth product - Low input offset voltage - Wide supply voltage range - Low input bias current - High slew rate

Package: DIP (Dual In-line Package)

Essence: The LM4250CN is a high-performance operational amplifier designed for various applications that require precision amplification and signal conditioning.

Packaging/Quantity: The LM4250CN is typically sold in packs of 10 or more.

Specifications

The LM4250CN has the following specifications:

• Supply Voltage Range: ±4V to ±18V
• Input Offset Voltage: 1mV (maximum)
• Input Bias Current: 50nA (maximum)
• Gain Bandwidth Product: 5MHz (typical)
• Slew Rate: 15V/µs (typical)
• Output Current: 20mA (maximum)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4250CN has 8 pins arranged as follows:

___________ V+ | 1 8 | V- IN-| 2 7 | OUT IN+| 3 6 | NC NC | 4 5 | NC |___________|

Functional Features

The LM4250CN offers the following functional features:

1. High Gain Bandwidth Product: The amplifier provides a wide frequency response, making it suitable for applications requiring high-speed signal amplification.
2. Low Input Offset Voltage: This feature ensures accurate amplification by minimizing the difference between the input and output voltages when no signal is present.
3. Wide Supply Voltage Range: The LM4250CN can operate with a wide range of supply voltages, allowing flexibility in various circuit designs.
4. Low Input Bias Current: The amplifier has low input bias current, reducing the impact of input impedance on the signal integrity.
5. High Slew Rate: The high slew rate enables the amplifier to quickly respond to changes in the input signal.

Advantages and Disadvantages

Advantages: - High gain bandwidth product allows for accurate amplification of high-frequency signals. - Wide supply voltage range provides flexibility in circuit design. - Low input offset voltage ensures precise amplification. - Low input bias current minimizes the impact of input impedance. - High slew rate enables fast response to signal changes.

Disadvantages: - Limited output current may restrict its use in applications requiring higher current capabilities. - DIP package may not be suitable for space-constrained designs.

Working Principles

The LM4250CN is based on the operational amplifier (op-amp) architecture. It utilizes differential inputs to amplify the voltage difference between the input terminals. The amplified signal is then available at the output terminal. The op-amp's internal circuitry, including transistors and resistors, work together to provide the desired amplification characteristics.

Detailed Application Field Plans

The LM4250CN can be used in various applications, including but not limited to:

1. Audio Amplification: The high gain bandwidth product and low distortion make it suitable for audio amplifiers.
2. Signal Conditioning: The precision amplification and low input offset voltage allow for accurate signal conditioning in measurement systems.
3. Active Filters: The wide supply voltage range and high slew rate make it suitable for active filter designs.
4. Instrumentation Amplifiers: The low input bias current and high common-mode rejection ratio make it ideal for instrumentation amplifier circuits.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM4250CN are:

1. LM741: A widely used general-purpose operational amplifier with similar characteristics.
2. TL071: Low-noise JFET-input operational amplifier suitable for audio applications.
3. AD822: Precision instrumentation amplifier with low input offset voltage and high common-mode rejection ratio.

These alternative models can be considered based on specific application requirements and availability.

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