OPA140AIDR

Product Overview

Category: Operational Amplifier
Use: Signal amplification and conditioning
Characteristics: High precision, low noise, wide bandwidth
Package: SOIC-8
Essence: Operational amplifier with high performance
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage: ±2.5V to ±18V
• Input Offset Voltage: 150µV (max)
• Input Bias Current: 1nA (typ)
• Gain Bandwidth Product: 20MHz (typ)
• Slew Rate: 10V/µs (typ)
• Input Voltage Noise: 7nV/√Hz (typ)
• Output Current: 40mA (max)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA140AIDR operational amplifier is available in an SOIC-8 package with the following pin configuration:

```

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| | --| IN- VCC+ |-- --| IN+ OUT |-- --| VCC- NC |-- |___________| ```

Functional Features

• High precision: The OPA140AIDR offers excellent accuracy and stability, making it suitable for applications requiring precise signal amplification.
• Low noise: With a low input voltage noise of 7nV/√Hz, this operational amplifier ensures minimal interference and distortion in sensitive circuits.
• Wide bandwidth: The device has a gain bandwidth product of 20MHz, enabling it to handle high-frequency signals accurately.
• Rail-to-rail output swing: The OPA140AIDR provides a wide output voltage range, allowing it to operate close to the supply rails.

Advantages and Disadvantages

Advantages: - High precision and accuracy - Low noise performance - Wide bandwidth for handling high-frequency signals - Rail-to-rail output swing for versatile applications

Disadvantages: - Limited output current capability (40mA max) - Requires external compensation for stability in certain configurations

Working Principles

The OPA140AIDR is a voltage-feedback operational amplifier that amplifies and conditions input signals. It utilizes a differential input stage, followed by a gain stage and an output buffer. The device operates based on the principles of negative feedback, where the output adjusts to minimize the difference between the input and desired output voltages.

Detailed Application Field Plans

The OPA140AIDR is commonly used in various applications, including: 1. Precision instrumentation: The high precision and low noise characteristics make it suitable for use in measurement equipment, data acquisition systems, and sensor interfaces. 2. Audio amplification: The wide bandwidth and low distortion make it ideal for audio amplifiers, preamplifiers, and headphone amplifiers. 3. Active filters: The OPA140AIDR can be employed in active filter circuits, such as low-pass, high-pass, band-pass, and notch filters. 4. Signal conditioning: It is widely used for signal conditioning tasks like level shifting, buffering, and impedance matching.

Detailed and Complete Alternative Models

Some alternative models to the OPA140AIDR include: - OPA134 - OPA2134 - LM358 - TL071 - AD8620

These alternatives offer similar functionality and can be considered based on specific application requirements.

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