OPA4347UAG4 - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The OPA4347UAG4 is a high-performance operational amplifier designed for precision applications. It offers low offset voltage, low input bias current, and high common-mode rejection ratio (CMRR). This IC is commonly used in various analog signal processing circuits.

Characteristics: - Low offset voltage: Ensures accurate amplification of small input signals. - Low input bias current: Minimizes the impact of input current on circuit performance. - High CMRR: Provides effective rejection of common-mode noise.

Package: The OPA4347UAG4 comes in a small-outline integrated circuit (SOIC) package. This package type allows for easy integration into circuit boards and provides good thermal dissipation.

Essence: The essence of the OPA4347UAG4 lies in its ability to provide precise amplification of analog signals with minimal distortion and noise.

Packaging/Quantity: The OPA4347UAG4 is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 150µV (max)
• Input Bias Current: 1nA (max)
• CMRR: 120dB (typ)
• Gain Bandwidth Product: 10MHz (typ)
• Slew Rate: 5V/µs (typ)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA4347UAG4 has a total of 14 pins arranged as follows:

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

Functional Features

1. Low Offset Voltage: The OPA4347UAG4 exhibits a low offset voltage, ensuring accurate amplification of small input signals.
2. Low Input Bias Current: With low input bias current, this IC minimizes the impact of input current on circuit performance.
3. High CMRR: The high common-mode rejection ratio allows for effective rejection of common-mode noise, resulting in cleaner amplified signals.

Advantages and Disadvantages

Advantages: - Precise amplification of small input signals - Low distortion and noise - Wide supply voltage range - Good thermal dissipation due to SOIC package

Disadvantages: - Relatively higher cost compared to some other operational amplifiers - Limited gain bandwidth product compared to specialized amplifiers

Working Principles

The OPA4347UAG4 is based on a differential amplifier configuration. It amplifies the voltage difference between its non-inverting (IN+) and inverting (IN-) inputs. The amplified output signal is then available at the OUT pin. The IC operates within the specified supply voltage range and provides precise amplification with low distortion.

Detailed Application Field Plans

The OPA4347UAG4 finds applications in various fields, including: 1. Audio Amplification: It can be used in audio amplifiers to provide accurate amplification of low-level audio signals. 2. Sensor Signal Conditioning: The IC is suitable for conditioning sensor signals in applications such as temperature measurement, pressure sensing, and strain gauges. 3. Data Acquisition Systems: It can be utilized in data acquisition systems to amplify analog signals before digitization. 4. Active Filters: The OPA4347UAG4 can be employed in active filter circuits to shape and process analog signals.

Detailed and Complete Alternative Models

1. OPA4348UAG4: Similar to the OPA4347UAG4, this model offers additional features such as rail-to-rail input/output capability.
2. LM324: This operational amplifier provides similar functionality at a lower cost but with slightly higher offset voltage and lower CMRR.
3. AD8629: This precision amplifier offers low noise and low offset voltage, making it suitable for high-precision applications.

(Note: The above list is not exhaustive and there are several other alternative models available in the market.)

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