OPA2591
- Wide supply voltage range: 8V to 85V
- Low offset voltage: 100µV, max
- Low offset drift: 2µV/°C, max
- High CMRR: 130dB, min
- High PSRR: 120dB, min
- Low input bias current: 15pA, max
- Low noise: 12.9nV/√Hz at 1kHz
- Wide bandwidth: 3.75MHz at 40dB
- High slew rate: 100V/µs
- Low quiescent current: 420µA
- Rail-to-rail output
- Unity gain stable
- Mux-friendly inputs
- Thermal shutdown protection
- Small package options:
- Single: SOT23
- Dual: VSSOP, SOIC
The OPAx591 is a family of high precision, 85V CMOS power amplifiers available in small, industry standard packages.
These devices are laser trimmed to provide excellent dc performance, including 100µV max offset, 2µV/°C max offset drift. The high power supply and common-mode rejection help these op amps maintain high dc performance across different operating conditions. Degradation of precision is minimal because of the very low input bias current across the entire operating voltage range.
The OPAx591 also excels in ac performance despite the low quiescent current consumption. Proprietary design techniques provide 100V/µs slew rate and MUX-friendly inputs to enable fast settling of large signals. The low broadband noise help maintain signal fidelity across a wide frequency spectrum.
The combination of high precision, low noise, low power, and small packages make the OPAx591 a great choice for high voltage, space constrained systems where power consumption and, or thermal management is critical. Such systems include automated test equipment requiring high voltage and precision, power supplies requiring current or voltage sensing, and piezo actuator driving for haptic feedback systems.
This family of amplifiers operates over the extended industrial temperature range of –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 | OPAx591 85V, Precision (100µV), Low-Power (420μA), High-Slew Rate (100V/μs) Op Amps With MUX-Friendly Inputs datasheet | PDF | HTML | 2026/2/25 |
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)。
DIP-ADAPTER-EVM — DIP 轉接器評估模組
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 (...)
DIYAMP-EVM — 通用自製 (DIY) 放大器電路評估模組
DIYAMP-EVM 是一系列評估模組 (EVM)，提供工程師與自組愛好者 (DIYers) 實作型放大器電路，協助快速驗證設計概念並模擬結果。提供三種業界標準封裝（SC70、SOT-23 和 SOIC）與 12 種常見放大器配置，支援單電源與雙電源架構的放大器、濾波器、穩定補償與比較器應用。
DIYAMP-EVM 可快速製作電路原型，並採用常見的 0805 或 0603 表面裝載元件。透過多種組合方式，此 EVM 可建立從簡單放大器電路到複雜訊號鏈的各種評估電路。此 EVM 支援模擬板、超微型 A 版 (SMA)、接頭和有線介面連接方式，並與大多數類比數位轉換器 (ADC) (...)
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。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGK) | 8 | Ultra Librarian |