OPA1632
- Excellent sound quality
- Ultra low distortion: 0.000028%
- Low noise: 1.25 nV/√Hz
- High speed:
- Slew rate: 72 V/µs
- Gain bandwidth product: 180 MHz
- Fully differential architecture:
- Balanced input and output converts single-ended input to balanced differential output
- Wide supply range: ±2.5 V to ±15 V
- Shutdown current: 0.85 mA (V S = ± 5 V)
- Temperature range: –40°C to +85°C
The OPA1632 is a fully differential amplifier (FDA) designed to drive high-performance audio analog-to-digital converters (ADCs) or as a predriver for class-D amplifiers.
The OPA1632 delivers excellent audio quality, very low noise, large output voltage swing, and high current drive. The OPA1632 has an excellent gain bandwidth of 180 MHz, and a very fast slew rate of 72 V/µs that helps to produce exceptionally low distortion. A very low input voltage noise of 1.25 nV/√Hz further provides maximum signal-to-noise ratio and dynamic range.
The flexibility of the fully differential architecture allows for easy implementation of a single-ended to fully differential output conversion. Differential output reduces even-order harmonics and minimizes common-mode noise interference. The OPA1632 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature is included to save power when the device is not in use.
The OPA1632 is characterized to operate from –40°C to +85°C and is available in an SO-8 package and a thermally-enhanced HVSSOP-8 PowerPAD™ integrated circuit package.
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 | OPA1632 High-Performance, Fully Differential Audio Op Amp datasheet (Rev. E) | PDF | HTML | 2023/8/21 | ||
| 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 | |||
| 應用說明 | Optimizing Noise and Power with Super Beta-Fully Differential Amplifiers | PDF | HTML | 2020/12/7 | |||
| 類比設計期刊 | Q3 2009 Issue Analog Applications Journal | 2018/9/24 | ||||
| 設計指南 | TIDA-01359 Audio-OPA1632EVM Audio Interface Board Design Guide | 2018/4/13 | ||||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 | |||
| 應用說明 | Fully-Differential Amplifiers (Rev. E) | 2016/9/19 | ||||
| 類比設計期刊 | Using infinite-gain, MFB filter topology in fully differential active filters | 2009/7/14 | ||||
| 類比設計期刊 | Analysis of fully differential amplifiers | 2005/3/11 | ||||
| 類比設計期刊 | Designing for low distortion with high-speed op amps | 2005/3/2 | ||||
| 應用說明 | Noise Analysis for High Speed Op Amps (Rev. A) | 2005/1/17 |
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)。
AMP-PDK-EVM — 放大器性能開發套件評估模組
放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件，可測試通用運算放大器 (op amp) 參數，並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項，可滿足封裝需求，使工程師能夠快速評估和驗證裝置性能。
AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝，包括：
- D (SOIC-8 和 SOIC-14)
- PW (TSSOP-14)
- DGK (VSSOP-8)
- DBV (SOT23-5 和 SOT23-6)
- DCK (SC70-5 和 SC70-6)
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
類比工程師的計算機旨在加速類比電路設計工程師定期使用的許多重複計算。此基於 PC 的工具提供圖形介面，列出各種常見計算，從使用回饋電阻器設定運算放大器增益到選擇適當的電路設計元件以穩定類比數位轉換器 (ADC) 驅動緩衝電路。
除了作為獨立工具使用外，此計算機還與類比工程師口袋參考中描述的概念相得益彰。
PMP10710 — 運用同級最佳升壓控制器的公開音訊參考設計
PMP10710 是一款用於公共廣播音訊系統的 200W 設計，可用於 100W + 100W 立體聲或 200W 低音揚聲器應用。本設計大致分為四個主要階段：
- 採用 LM5122 控制器 IC 的單相同步升壓轉換器。 此設計接受 10V 至 15VIN 的輸入電壓（額定 12VIN），並提供 30V 的輸出，可為負載提供 6.5A 連續電流。
- 使用 TAS5611 D 類裝置的 100W + 100W 立體聲音訊放大器。
- 立體聲輸入使用 OPA1632 差動放大器的單端至差動轉換（具主動低通濾波器）。
- Simple Switcher LM16006 用於滿足所有輔助電源需求。
TIDA-01359 — 具有改善雜訊和失真的類比音頻放大器前端參考設計
TIDA-RESOLVER-APPLICATIONS-REFERENCE-DESIGN — 適用於 AMC1210 的主機板/控制器
This is a reference design for resolver applications and part of a modular system for evaluating our delta-sigma modulators. The software included allows use of the AMC1210 in a variety of configurations for resolver and current-shunt applications and features a data-export utility to support data (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |