OPA1678IDRGR

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Low distortion and noise - Wide bandwidth - High output current capability

Package: SOIC-8

Essence: The OPA1678IDRGR is a high-performance audio amplifier IC designed for various audio applications.

Packaging/Quantity: The OPA1678IDRGR is available in a standard SOIC-8 package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: ±2.25V to ±18V
• Input Voltage Range: ±Vs - 1.5V
• Output Voltage Swing: ±Vs - 1.5V
• Quiescent Current: 6.5mA per channel
• Gain Bandwidth Product: 55MHz
• Total Harmonic Distortion + Noise: 0.00003% (typical)
• Input Noise Voltage: 3.9nV/√Hz (typical)
• Slew Rate: 20V/µs
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The OPA1678IDRGR has the following pin configuration:

__ __ OUT+| | | |+VS OUT-| |__| |-VS IN+ | | IN- |________|

Functional Features

• High gain accuracy and low offset voltage
• Excellent common-mode rejection ratio (CMRR)
• Unity-gain stable
• Short-circuit protection
• Thermal shutdown protection

Advantages

• High-quality audio amplification with low distortion and noise
• Wide frequency response for accurate audio reproduction
• High output current capability for driving various loads
• Robust protection features ensure reliable operation

Disadvantages

• Relatively high quiescent current compared to some low-power audio amplifiers
• Requires external components for proper biasing and filtering

Working Principles

The OPA1678IDRGR is a voltage-feedback operational amplifier designed specifically for audio applications. It utilizes a combination of high-performance circuitry and advanced manufacturing techniques to achieve low distortion, low noise, and wide bandwidth.

The amplifier operates by amplifying the voltage difference between its non-inverting (IN+) and inverting (IN-) inputs. The amplified signal is then delivered to the output pins (OUT+ and OUT-) with high accuracy and minimal distortion.

Detailed Application Field Plans

The OPA1678IDRGR is suitable for a wide range of audio applications, including:

1. Professional audio equipment
2. Hi-fi audio systems
3. Headphone amplifiers
4. Audio mixers and consoles
5. Musical instruments
6. Automotive audio systems

Detailed and Complete Alternative Models

1. OPA1612IDR: Dual-channel audio amplifier with similar performance characteristics.
2. LM4562NA/NOPB: High-performance audio operational amplifier with low distortion and noise.
3. NJM2068DD: Low-noise dual operational amplifier for audio applications.
4. TPA6120A2DWP: High-fidelity stereo headphone amplifier with low distortion and noise.

These alternative models offer similar functionality and can be considered as alternatives to the OPA1678IDRGR based on specific application requirements.

In conclusion, the OPA1678IDRGR is a high-performance audio amplifier IC that offers excellent audio quality, wide bandwidth, and high output current capability. Its robust design and advanced features make it suitable for various audio applications.