OPA1655
- Ultra-low noise:
- Voltage noise: 2.9 nV/√Hz at 10 kHz
- Current noise: 6 fA/√Hz at 1 kHz
- Low distortion:
- 0.000029% (–131 dB) at 1 kHz
- 0.000035% (–129 dB) at 20 kHz
- High open-loop gain: 150 dB
- High output current: 100 mA
- Low input bias current: 10 pA
- Slew rate: 24 V/µs
- Gain bandwidth product: 53 MHz
- Rail-to-rail output
- Wide supply range: ±2.25 V to ±18 V or 4.5 V to 36 V
- Quiescent current: 3.9 mA per channel
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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | OPA165x Ultra-Low-Noise, Low-Distortion, FET-Input, Burr-Brown™ Audio Operational Amplifiers datasheet (Rev. C) | PDF | HTML | 2022/9/15 | ||
| 應用說明 | How to Measure Total Harmonic Distortion of an Op-Amp and THD + N Fundamentals | PDF | HTML | 2023/11/9 | |||
| Application brief | Understanding Op Amp Noise in Audio Circuits | PDF | HTML | 2021/6/14 | |||
| 白皮書 | Audio Innovation: Trends in Automotive, Smart Home and Pro Audio Applications | 2019/8/21 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
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