The OPA1655 and OPA1656 (OPA165x) are Burr-Brown™ op amps designed specifically for audio and industrial applications, where maintaining signal fidelity is crucial. The FET-input architecture achieves a low 2.9‑nV/√Hz voltage noise density and 6‑fA/√Hz current noise density, allowing for very-low noise performance in a wide variety of circuits. The high bandwidth and high open-loop-gain design of the OPA165x delivers a low distortion of 0.000035% (–129 dB) at 20 kHz, and improves audio signal fidelity across the full audio bandwidth. These devices also feature excellent output current drive capability, offering rail-to-rail output swing to within 250 mV of the power supplies with a 2‑kΩ load, and can deliver 100 mA of output current.
The OPA165x operate over a very wide supply range of ±2.25 V to ±18 V or (4.5 V to 36 V) on 3.9 mA of supply current to accommodate the power-supply constraints of many types of audio products. The temperature range is specified from –40°C to +125°C.
| Documentación principal | Tipo | Título | Opciones de formato | Fecha |
|---|---|---|---|---|
| * | Data sheet | OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers datasheet (Rev. C) | PDF | HTML | 15 sep 2022 |
| Application note | How to Measure Total Harmonic Distortion of an Op-Amp and THD + N Fundamentals | PDF | HTML | 09 nov 2023 | |
| Application brief | Understanding Op Amp Noise in Audio Circuits | PDF | HTML | 14 jun 2021 | |
| Application note | Cascading Precision Op Amp Stages for Optimal AC and DC Performance | PDF | HTML | 17 ago 2020 | |
| Technical article | TI Burr-Brown™ technology: always on the edge of audio innovation | PDF | HTML | 19 sep 2019 | |
| White paper | Audio Innovation: Trends in Automotive, Smart Home and Pro Audio Applications | 21 ago 2019 | ||
| Application note | Phantom Power with Operational Amplifiers (Rev. A) | 09 nov 2018 | ||
| Application note | Compensate Transimpedance Amplifiers Intuitively (Rev. A) | 30 mar 2005 |
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Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.
The (...)
The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
| Encapsulado | Pines | Símbolos CAD, huellas y modelos 3D |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
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Analog Engineer's Calc Installer
General calculator tool for analog design support.