OPA2111BM

Introduction

The OPA2111BM is a precision operational amplifier designed for high-performance audio and industrial applications. This entry provides an overview of the OPA2111BM, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Product Category

The OPA2111BM belongs to the category of precision operational amplifiers used in audio and industrial applications.

Basic Information Overview

• Use: The OPA2111BM is used for high-performance audio and industrial applications where precision and low noise are essential.
• Characteristics: It offers low offset voltage, low noise, high common-mode rejection ratio (CMRR), and wide bandwidth.
• Package: The OPA2111BM is available in a small outline package (SOIC) and micro-size package (MSOP).
• Essence: Its essence lies in providing precise amplification with minimal distortion and noise.
• Packaging/Quantity: It is typically available in reels containing a specific quantity based on customer requirements.

Specifications

• Supply Voltage: ±2.25 V to ±18 V
• Input Offset Voltage: 25 µV (maximum)
• Input Bias Current: 0.5 pA (maximum)
• Gain Bandwidth Product: 10 MHz
• Slew Rate: 20 V/µs
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The OPA2111BM has a standard 8-pin dual in-line package (DIP) configuration: 1. Non-inverting input (+IN) 2. Inverting input (-IN) 3. Output (OUT) 4. Negative power supply (-Vs) 5. Offset null 6. Positive power supply (+Vs) 7. Not connected (NC) 8. Ground (GND)

Functional Features

• Low offset voltage and drift for precision applications
• Low noise for high-fidelity audio applications
• High CMRR for rejecting common-mode interference
• Wide bandwidth for accurate signal reproduction

Advantages and Disadvantages

Advantages

• High precision and low noise
• Wide operating voltage range
• Small form factor packaging options
• Excellent linearity and stability

Disadvantages

• Relatively higher cost compared to general-purpose op-amps
• Limited availability in certain regions

Working Principles

The OPA2111BM operates based on the principles of differential amplification and feedback control. It uses precision-matched transistors and resistors to minimize offset voltage and provide accurate amplification of input signals.

Detailed Application Field Plans

The OPA2111BM is well-suited for the following applications: - High-fidelity audio amplification - Instrumentation and measurement equipment - Data acquisition systems - Precision sensor signal conditioning - Active filter circuits

Detailed and Complete Alternative Models

Some alternative models to the OPA2111BM include: - OPA1611 - AD797 - LT1115 - ADA4898-1

In conclusion, the OPA2111BM is a precision operational amplifier that excels in high-performance audio and industrial applications, offering low offset voltage, low noise, and high CMRR. Its wide operating voltage range and small form factor make it suitable for various precision applications.

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