OP491GPZ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Operational Amplifier
• Characteristics: High precision, low noise, rail-to-rail output, low power consumption
• Package: PDIP-8, SOIC-8
• Essence: The OP491GPZ is a high-performance operational amplifier designed for various applications requiring precision amplification.
• Packaging/Quantity: Available in tubes or reels, with 50 units per tube/reel.

Specifications

• Supply Voltage: ±2.5V to ±18V
• Input Offset Voltage: 500µV (maximum)
• Input Bias Current: 1nA (maximum)
• Gain Bandwidth Product: 10MHz (typical)
• Slew Rate: 3V/µs (typical)
• Quiescent Current: 800µA (typical)

Detailed Pin Configuration

The OP491GPZ has an 8-pin package with the following pin configuration:

```

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

Functional Features

• High precision amplification: The OP491GPZ offers excellent accuracy and stability, making it suitable for applications that require precise signal amplification.
• Low noise: With a low input offset voltage and bias current, this operational amplifier minimizes unwanted noise in the amplified signal.
• Rail-to-rail output: The device provides an output voltage range that extends close to the supply rails, allowing for maximum utilization of the available dynamic range.
• Low power consumption: The OP491GPZ is designed to operate with low quiescent current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High precision amplification - Low noise performance - Rail-to-rail output - Low power consumption

Disadvantages: - Limited supply voltage range compared to some other operational amplifiers - Not suitable for high-frequency applications due to limited gain bandwidth product

Working Principles

The OP491GPZ operates as a voltage amplifier by amplifying the difference between its two input terminals. It utilizes internal circuitry to provide high gain, low distortion, and accurate amplification of the input signal. The rail-to-rail output allows the amplified signal to swing close to the supply voltages, ensuring maximum signal integrity.

Detailed Application Field Plans

The OP491GPZ is commonly used in various applications, including but not limited to: - Precision instrumentation - Sensor signal conditioning - Audio amplification - Active filters - Data acquisition systems - Medical equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the OP491GPZ include: - OP497G: Higher precision and lower noise, but higher power consumption - MCP6002: Lower cost, wider supply voltage range, but lower precision - LT1490: Lower power consumption, higher gain bandwidth product, but higher cost

These alternatives can be considered based on specific application requirements and trade-offs between performance, cost, and power consumption.

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