OPA140AIDBVR

Product Overview

Category: Operational Amplifier (Op-Amp)

Use: The OPA140AIDBVR is a high-speed, low-noise operational amplifier designed for precision applications. It is commonly used in audio amplification, signal conditioning, and sensor interface circuits.

Characteristics: - High speed: The OPA140AIDBVR offers a high slew rate and bandwidth, making it suitable for applications requiring fast response times. - Low noise: With a low input voltage noise density, this op-amp ensures accurate signal amplification without introducing significant additional noise. - Low distortion: The device exhibits low harmonic distortion, enabling faithful reproduction of the input signal. - Wide supply voltage range: The OPA140AIDBVR can operate from a single or dual power supply, accommodating various system requirements. - Rail-to-rail output swing: It provides an output voltage that can reach close to the supply rails, maximizing dynamic range.

Package: The OPA140AIDBVR is available in a small SOT23-5 package, which is compact and suitable for space-constrained designs.

Essence: This op-amp is designed to provide high performance in terms of speed, noise, and distortion, making it ideal for precision applications where accuracy is crucial.

Packaging/Quantity: The OPA140AIDBVR is typically sold in reels containing 3000 units.

Specifications

• Supply Voltage Range: ±2 V to ±18 V
• Input Offset Voltage: 500 µV (max)
• Input Bias Current: 1 nA (typ)
• Gain Bandwidth Product: 20 MHz (typ)
• Slew Rate: 10 V/µs (typ)
• Output Current: 40 mA (max)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The OPA140AIDBVR has a standard pin configuration as follows:

___________ V- |1 5| V+ IN-|2 4| OUT IN+|3 | |__________|

Functional Features

• High gain: The op-amp provides a high open-loop voltage gain, allowing for precise amplification of small input signals.
• Unity-gain stable: It remains stable even with a gain of 1, making it suitable for applications requiring unity gain configurations.
• Low input bias current: The device exhibits low input bias current, minimizing the impact on signal sources and reducing errors in precision circuits.
• ESD protection: The OPA140AIDBVR incorporates built-in electrostatic discharge (ESD) protection, safeguarding the device from damage during handling and assembly.

Advantages and Disadvantages

Advantages: - High speed and low noise enable accurate signal processing. - Wide supply voltage range allows for flexibility in power supply selection. - Small package size facilitates compact circuit designs. - Rail-to-rail output swing maximizes dynamic range.

Disadvantages: - Limited output current may restrict its use in certain high-power applications. - Higher cost compared to general-purpose op-amps.

Working Principles

The OPA140AIDBVR is based on a differential amplifier configuration. It utilizes a combination of active devices and feedback networks to amplify and condition input signals. The internal circuitry ensures high gain, low distortion, and low noise characteristics.

Detailed Application Field Plans

The OPA140AIDBVR finds application in various fields, including: 1. Audio amplification: It can be used in audio preamplifiers, headphone amplifiers, and audio mixers to provide accurate and high-fidelity signal amplification. 2. Sensor interface: The op-amp is suitable for conditioning signals from sensors such as temperature sensors, pressure sensors, and strain gauges. 3. Signal conditioning: It can be employed in instrumentation circuits to amplify and condition weak signals before further processing or measurement.

Detailed and Complete Alternative Models

1. OPA134: This op-amp offers similar performance characteristics to the OPA140AIDBVR and is available in a DIP-8 package.
2. LT1115: A precision op-amp with low noise and distortion, available in various package options.
3. AD8628: An ultra-low noise, rail-to-rail output op-amp suitable for high-performance applications.

These alternative models provide comparable features and can be considered based on specific application requirements.

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