The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2.8-nV/√Hz noise density with an ultralow THD+N of –119.2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 ideal for use in portable-audio applications. This device also has a high output-drive capability of +145 mA / –130 mA.
The OPA1622 operates over a very wide supply range of ±2 V to ±18 V, on only 2.6 mA of supply current per channel. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior over a wide range of load conditions. The OPA1622 includes a shutdown mode, allowing the amplifiers to be switched from normal operation to a standby current that is typically less than 5 µA. This shutdown feature is specifically designed to eliminate click and pop noise when transitioning into or out of shutdown mode.
The OPA1622 features a unique internal layout for lowest crosstalk, and freedom from interactions between channels, even when overdriven or overloaded. This device is specified from –40°C to +125°C.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | OPA1622 SoundPlus™ High-Fidelity, Bipolar-Input, Audio Operational Amplifier datasheet (Rev. B) | PDF | HTML | May 3, 2016 |
| Application note | How to Measure Total Harmonic Distortion of an Op-Amp and THD + N Fundamentals | PDF | HTML | Nov 9, 2023 | |
| Application brief | Understanding Op Amp Noise in Audio Circuits | PDF | HTML | Jun 14, 2021 | |
| Application note | HiFi Audio Circuit Design | Aug 23, 2017 | ||
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | Mar 28, 2017 | |
| Technical article | Pump it up quietly | PDF | HTML | Feb 19, 2016 | |
| Analog design Journal | Stabilizing difference amplifiers for headphone applications | Apr 28, 2015 | ||
| Analog design Journal | Reducing distortion from CMOS analog switches | Jan 29, 2015 | ||
| Analog design Journal | Distortion and source impedance in JFET-input op amps | Oct 24, 2014 | ||
| E-book | Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D) | PDF | HTML | Sep 30, 2014 |
For additional terms or required resources, click any title below to view the detail page where available.
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSON (DRC) | 10 | Ultra Librarian |
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