OPA593
- Wide power-supply range:
- 8 V (±4 V) to 85 V (±42.5 V)
- Low offset voltage: ±20 µV
- Low offset voltage drift: ±0.4 µV/°C
- High output current: 250 mA
- Wide gain bandwidth: 10 MHz
- High slew rate: 45 V/µs, rising
- Low noise: 7 nV/√Hz at 10 kHz
- Mux-friendly inputs
- Rail-to-rail output
- Quiescent current:
- Enabled: 3.25 mA
- Disabled: 250 µA
- Specified current limit accuracy
- Overtemperature and overcurrent flags
- Temperature range: –40°C to +125°C
- Package: 12-pin WSON
The OPA593 is a high-voltage (85 V), high-precision, wide-bandwidth (10 MHz), high-output-current (250 mA), unity-gain-stable, power op amp.
The OPA593 uses a laser trimming technique to improve the offset voltage (20 µV, typical) and offset voltage drift (0.4 µV/°C, typical), and thus avoids the need for calibration. This device features mux-friendly inputs that enable differential input voltage range to the supply rails and help improve settling performance in multichannel systems.
An external resistor can be used to limit the current with specified accuracy, and thus provide more precise measurements. In case of an overcurrent or overtemperature condition, the device indicates erroneous operation through a status flag. An included disable feature is used to shutdown the device, saving power and placing the output into a high-impedance state.
The device is unity-gain stable, enabling operation as a high-impedance buffer. The wide bandwidth and high slew enable high signal gains. The high output current and capacitive drive allow the device to drive external field-effect transistors (FETs) used to provide higher system currents, such as in a digital power supply.
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 | OPA593 85-V, 250-mA Output Current, Precision, Power Op Amp datasheet (Rev. C) | PDF | HTML | 2022/12/23 | ||
| 應用說明 | Optimizing Dual Feedback Compensation in the OPA593 With a Current Booster for 1μF Capacitive Loads in ATE App | PDF | HTML | 2024/11/19 | |||
| Application brief | Paralleling the OPA593 High-Voltage, High-Current Op Amp for 2 × Output Current (Rev. A) | PDF | HTML | 2023/1/9 | |||
| Application brief | How Do I Achieve a More Accurate Current Limit and Avoid Damaging My DUT? | PDF | HTML | 2022/3/10 | |||
| 證書 | OPA593EVM EU RoHS Declaration of Conformity (DoC) | 2021/10/26 |
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)。
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。
OPAMP-NOISECALC — Noise Calculator
This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:
- A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
TIDA-010962 — 自動測試設備 (ATE) 80V 離散式浮動 VI 參考設計
此參考設計展現四象限離散式浮動電壓與電流 (VI) 設計。電壓輸出支援 ±40V 和 0V 至 80V 範圍，並提供 500mA、10mA 和 10μA 三種電流範圍。此設計可在強制電壓 (FV)、強制電流 (FI)、緩衝器及具有類比回饋迴路的 Gang 模式下運作。憑藉 20 位元強制數位轉類比轉換器 (DAC) 和 18 位元、2 通道類比轉數位轉換器 (ADC) 以及精密訊號鏈，該參考設計可實現校準後控制與測量具備 0.01% 準確度。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DNT) | 12 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。