OPA842ID

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: High-speed, low-noise, precision amplifier
• Package: DIP-8 (Dual In-line Package with 8 pins)
• Essence: The OPA842ID is a high-performance operational amplifier designed for various applications requiring high-speed and low-noise amplification.
• Packaging/Quantity: Available in reels of 2500 units or tubes of 50 units.

Specifications

• Supply Voltage: ±2.5V to ±18V
• Input Offset Voltage: ±1mV (maximum)
• Input Bias Current: ±10nA (maximum)
• Gain Bandwidth Product: 200MHz (typical)
• Slew Rate: 1000V/µs (typical)
• Input Voltage Noise: 3.9nV/√Hz (typical)
• Output Current: ±40mA (typical)

Pin Configuration

The OPA842ID has the following pin configuration:

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

Functional Features

• High-speed amplification: The OPA842ID offers a gain bandwidth product of 200MHz, making it suitable for high-frequency applications.
• Low noise: With an input voltage noise of 3.9nV/√Hz, the OPA842ID ensures minimal interference and accurate signal amplification.
• Precision performance: The amplifier provides precise amplification with a low input offset voltage and input bias current.
• Wide supply voltage range: The OPA842ID can operate from ±2.5V to ±18V, allowing flexibility in various power supply configurations.

Advantages and Disadvantages

Advantages: - High-speed amplification capability - Low noise performance - Precision amplification - Wide supply voltage range

Disadvantages: - Limited pin configuration options - Relatively high power consumption compared to some low-power amplifiers

Working Principles

The OPA842ID is based on a differential amplifier architecture that allows for high gain and accurate amplification of input signals. It utilizes a combination of active components and feedback mechanisms to achieve the desired performance characteristics.

Detailed Application Field Plans

The OPA842ID finds applications in various fields, including:

1. Audio Amplification: The amplifier's high-speed and low-noise characteristics make it suitable for audio amplification in professional audio equipment, musical instruments, and sound systems.
2. Communications Systems: The OPA842ID can be used in high-frequency communication systems, such as wireless transceivers and base stations, to amplify signals with minimal distortion.
3. Test and Measurement Equipment: The precision performance of the OPA842ID makes it ideal for use in test and measurement equipment, such as oscilloscopes and signal analyzers, where accurate signal amplification is crucial.
4. Medical Instrumentation: The amplifier can be employed in medical devices, such as ultrasound machines and patient monitoring systems, to amplify and process signals with high fidelity.

Detailed and Complete Alternative Models

Some alternative models to the OPA842ID include:

1. OPA827ID: A precision operational amplifier with similar characteristics but lower power consumption.
2. OPA843ID: A higher-gain version of the OPA842ID, suitable for applications requiring additional amplification.
3. OPA837ID: An operational amplifier optimized for low-power applications, offering reduced power consumption at the expense of some performance characteristics.

These alternative models provide options for different power requirements and specific application needs.

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