OPA2131UA/2K5E4

Overview

Category: Operational Amplifier
Use: Audio applications, precision instrumentation
Characteristics: High performance, low noise, low distortion
Package: SOIC-8
Essence: Precision operational amplifier
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage: ±2.5V to ±18V
• Input Offset Voltage: 0.25mV (maximum)
• Input Bias Current: 10nA (maximum)
• Input Voltage Noise: 8nV/√Hz (typical)
• Gain Bandwidth Product: 8MHz (typical)
• Slew Rate: 20V/µs (typical)
• Output Current: 40mA (maximum)

Pin Configuration

The OPA2131UA/2K5E4 has a standard SOIC-8 pin configuration as follows:

___________ V+ | 1 8 | V- IN+| 2 7 | OUT IN-| 3 6 | NC NC | 4 5 | NC ¯¯¯¯¯¯¯¯¯¯¯

Functional Features

• Low noise and distortion: The OPA2131UA/2K5E4 offers high-quality audio performance with low noise and low distortion characteristics.
• Wide supply voltage range: It operates from ±2.5V to ±18V, providing flexibility in various applications.
• High gain bandwidth product: With a typical gain bandwidth product of 8MHz, it is suitable for applications requiring wide frequency response.
• High output current: The device can deliver up to 40mA of output current, enabling it to drive a variety of loads.

Advantages and Disadvantages

Advantages: - High performance audio amplification - Low noise and distortion - Wide supply voltage range - High output current capability

Disadvantages: - Relatively higher cost compared to some other operational amplifiers - Limited availability in certain regions

Working Principles

The OPA2131UA/2K5E4 is a precision operational amplifier designed for high-performance audio applications and precision instrumentation. It utilizes advanced circuitry to provide low noise, low distortion, and high gain bandwidth product. The device operates by amplifying the difference between the input voltages at the non-inverting (IN+) and inverting (IN-) inputs, producing an amplified output signal.

Detailed Application Field Plans

The OPA2131UA/2K5E4 is commonly used in the following application fields:

1. Audio Amplification: It is suitable for audio amplification in high-fidelity systems, professional audio equipment, and musical instruments.
2. Precision Instrumentation: The precision characteristics of the OPA2131UA/2K5E4 make it ideal for use in precision measurement instruments, data acquisition systems, and sensor interfaces.
3. Active Filters: It can be employed in active filter circuits for signal conditioning and frequency response shaping.
4. Signal Processing: The device finds applications in signal processing circuits such as mixers, equalizers, and audio effects processors.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the OPA2131UA/2K5E4 include:

1. LM4562: Dual high-performance audio operational amplifier with low distortion and wide supply voltage range.
2. AD8620: Precision JFET input operational amplifier with low noise and low offset voltage.
3. NJM2068: Dual low-noise operational amplifier with high slew rate and wide supply voltage range.
4. LT1358: Dual precision operational amplifier with low noise, low distortion, and high output current capability.

These alternative models can be considered based on specific application requirements and availability.