OPA4347EA/250

Basic Information Overview

• Category: Operational Amplifier
• Use: Signal amplification and conditioning in various electronic circuits
• Characteristics:
  • High gain and bandwidth
  • Low input offset voltage and bias current
  • Rail-to-rail input and output capability
  • Wide supply voltage range
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Operational amplifier with versatile performance characteristics
• Packaging/Quantity: Tape and reel, 250 units per reel

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Offset Voltage: 0.5mV (maximum)
• Input Bias Current: 1nA (maximum)
• Gain Bandwidth Product: 10MHz
• Slew Rate: 4V/µs
• Output Current: ±20mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA4347EA/250 operational amplifier has a total of 14 pins arranged as follows:

```

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| | | 1 8 | | 2 7 | | 3 6 | | 4 5 | |_______________| ```

Pin Configuration: 1. V+ (Positive Power Supply) 2. IN1- (Inverting Input 1) 3. IN1+ (Non-Inverting Input 1) 4. NC (No Connection) 5. OUT1 (Output 1) 6. V- (Negative Power Supply) 7. OUT2 (Output 2) 8. IN2+ (Non-Inverting Input 2) 9. IN2- (Inverting Input 2) 10. NC (No Connection) 11. NC (No Connection) 12. NC (No Connection) 13. NC (No Connection) 14. NC (No Connection)

Functional Features

• High precision amplification and conditioning of input signals
• Wide operating voltage range allows for flexibility in power supply selection
• Rail-to-rail input and output capability enables accurate signal processing near the power supply rails
• Low input offset voltage and bias current minimize errors in signal amplification
• High gain bandwidth product and slew rate ensure fast and accurate signal response

Advantages and Disadvantages

Advantages: - Versatile operational amplifier suitable for various applications - Wide supply voltage range allows for compatibility with different power sources - Rail-to-rail input and output capability enhances signal fidelity - Low input offset voltage and bias current improve accuracy

Disadvantages: - Limited output current compared to specialized amplifiers - Higher cost compared to basic operational amplifiers

Working Principles

The OPA4347EA/250 is a voltage-feedback operational amplifier that amplifies and conditions input signals. It utilizes a differential amplifier configuration to amplify the voltage difference between its non-inverting and inverting inputs. The amplified signal is then fed to the output stage, which provides a high-current drive capability. The rail-to-rail input and output capability ensures that the amplifier can accurately process signals even when they approach the power supply rails.

Detailed Application Field Plans

The OPA4347EA/250 operational amplifier finds applications in various fields, including:

1. Audio Amplification: Provides high-fidelity amplification for audio signals in audio equipment such as amplifiers, mixers, and preamplifiers.
2. Sensor Signal Conditioning: Amplifies and conditions weak signals from sensors, such as temperature sensors, pressure sensors, and strain gauges, for further processing.
3. Active Filters: Used in active filter circuits to shape the frequency response of signals in communication systems, audio systems, and instrumentation.
4. Instrumentation Amplifiers: Used in precision measurement systems to amplify small differential signals while rejecting common-mode noise.
5. Data Acquisition Systems: Provides signal conditioning and amplification for analog input signals in data acquisition systems used in industrial automation, test and measurement, and scientific research.

Detailed and Complete Alternative Models

1. OPA4347EA/250 (Texas Instruments)
2. LT1677 (Analog Devices)
3. AD8628 (Analog Devices)
4. MCP6004 (Microchip Technology)
5. MAX44267 (Maxim Integrated)

These alternative models offer similar performance characteristics and can be considered as substitutes for the OPA4347EA/250 operational amplifier.