OPA349NA/250

Product Overview

The OPA349NA/250 is a precision, low-power operational amplifier designed for use in a wide range of applications. This device belongs to the category of integrated circuits and is commonly used in instrumentation, sensor signal conditioning, and control systems. Its characteristics include low offset voltage, low input bias current, and low quiescent current, making it suitable for battery-powered and portable applications. The OPA349NA/250 is available in small-outline IC (SOIC) and thin shrink small-outline package (TSSOP) packages, with various packaging options and quantities to meet different application needs.

Specifications

• Supply Voltage: ±1.35V to ±6V
• Input Offset Voltage: 150µV (max)
• Input Bias Current: 0.2pA (typ)
• Quiescent Current: 25µA (max)
• Gain Bandwidth Product: 500kHz (typ)

Detailed Pin Configuration

The OPA349NA/250 features a standard operational amplifier pin configuration with eight pins, including non-inverting input (pin 3), inverting input (pin 2), output (pin 1), positive supply (pin 4), negative supply (pin 5), and compensation and nulling pins (pins 6, 7, 8).

Functional Features

The OPA349NA/250 offers high precision and low power consumption, making it suitable for applications requiring accurate signal amplification and conditioning. It provides rail-to-rail input and output operation, enabling it to handle signals close to both supply rails. Additionally, the device exhibits low noise and distortion, ensuring high-fidelity signal processing.

Advantages and Disadvantages

Advantages

• Low offset voltage and input bias current
• Wide supply voltage range
• Small form factor and various packaging options
• Low quiescent current for power-sensitive applications

Disadvantages

• Limited gain bandwidth product compared to some higher-speed op-amps
• May not be suitable for high-frequency applications

Working Principles

The OPA349NA/250 operates based on the principles of differential amplification and feedback control. It uses a combination of internal circuitry and external components to amplify and condition input signals while maintaining high accuracy and stability.

Detailed Application Field Plans

The OPA349NA/250 is well-suited for a variety of applications, including: - Sensor signal conditioning in industrial automation - Portable medical devices requiring low power consumption - Precision measurement instruments for test and measurement - Control systems in automotive and aerospace applications

Detailed and Complete Alternative Models

• OPA340: Similar precision op-amp with lower quiescent current
• OPA355: Higher speed op-amp with wider bandwidth for high-frequency applications
• OPA376: Precision op-amp with extended temperature range for harsh environments

In conclusion, the OPA349NA/250 is a versatile operational amplifier offering precision, low power consumption, and a wide range of applications, making it an ideal choice for various electronic designs.

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