The OPA1688ID, part of Texas Instruments' SoundPlus™ series, is a high-performance audio operational amplifier designed to deliver low distortion and noise, providing users with an exceptional audio experience. This operational amplifier is particularly well-suited for professional audio equipment, high-quality music playback systems, and other audio applications demanding superior sound quality.

Key Features

• Low Distortion: The OPA1688ID offers a THD+N (Total Harmonic Distortion plus Noise) of 0.0001% at 1 kHz, which ensures a clear and precise audio signal without unwanted harmonics or noise.
• Low Noise: With an ultra-low voltage noise density of 4.5 nV/√Hz, this op-amp minimizes background hiss and enhances the clarity of the audio signal.
• High Slew Rate: A slew rate of 10 V/µs allows the OPA1688ID to handle rapid changes in input signals without distortion, making it ideal for high dynamic range audio applications.
• Unity-Gain Stable: The device can operate at a gain of 1 without oscillation, providing flexibility in various circuit designs.

Applications

• Professional Audio Equipment
• Headphone Amplifiers
• Active Filters
• Audio Digital-to-Analog Converters (DACs)

Product Specifications

Parameter Value Channels Dual Supply Voltage (V<sub>CC) ±2.25 V to ±18 V Output Current 35 mA Package SOIC-8 Operating Temperature Range -40°C to +85°C

The OPA1688ID is available in a compact SOIC-8 package, making it suitable for space-constrained applications while still delivering the high performance that audio enthusiasts and professionals demand. Its extended operating temperature range ensures reliable performance in a variety of environments.