OPA2137U

Overview

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

Specifications

• Supply Voltage Range: ±2.5V to ±18V
• Input Offset Voltage: 0.25mV (maximum)
• Input Bias Current: 1nA (maximum)
• Input Noise Voltage: 8nV/√Hz (typical)
• Gain Bandwidth Product: 8MHz (typical)
• Slew Rate: 20V/µs (typical)
• Output Current: 40mA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The OPA2137U is a dual operational amplifier with the following pin configuration:

__ __ V+ --| |--| |-- Vin+ --| |--| | Vin- --| |--| | V- --|__|--|__| 1 2 3 4

Functional Features

• Low input offset voltage and bias current for accurate signal amplification.
• High gain bandwidth product and slew rate for fast signal processing.
• Wide supply voltage range allows flexibility in various applications.
• Low noise and distortion ensure high-quality audio reproduction.
• High output current capability enables driving of low impedance loads.

Advantages

• Excellent audio performance with low noise and distortion.
• Versatile supply voltage range accommodates different power sources.
• Robust design suitable for precision instrumentation applications.
• Dual op-amp configuration provides flexibility in circuit design.

Disadvantages

• Relatively high power consumption compared to some low-power op-amps.
• Limited output current may not be suitable for driving high-power loads.

Working Principles

The OPA2137U is an operational amplifier designed to amplify and process analog signals with high precision. It utilizes a dual op-amp configuration, allowing for independent amplification of two input signals. The op-amp operates by comparing the voltage difference between its two input terminals and producing an amplified output signal proportional to this difference. The OPA2137U incorporates advanced circuitry to minimize noise, distortion, and offset errors, ensuring accurate signal reproduction.

Application Field Plans

The OPA2137U is commonly used in audio applications such as audio amplifiers, mixers, and equalizers. Its low noise and distortion characteristics make it ideal for high-fidelity audio systems. Additionally, its precision instrumentation capabilities make it suitable for use in measurement equipment, data acquisition systems, and control circuits where accuracy is crucial.

Alternative Models

• OPA2134: Single version of the OPA2137U
• TL072: General-purpose dual operational amplifier
• NE5532: Dual low-noise operational amplifier
• LM833: Dual audio operational amplifier

These alternative models offer similar functionality and can be considered as substitutes for the OPA2137U depending on specific requirements and application needs.

In conclusion, the OPA2137U is a high-performance dual operational amplifier widely used in audio and precision instrumentation applications. Its excellent audio performance, low noise, and distortion characteristics make it a popular choice among audio enthusiasts and professionals. With its versatile supply voltage range and robust design, it offers flexibility and reliability in various circuit designs.