OPA1S2385
- Wide Bandwidth: 250 MHz
- High Slew Rate: 150 V/µs
- Rail-to-Rail Input/Output (I/O)
- Fast Settling
- Low Input Bias Current: 3 pA
- High Input Impedance: 1013 Ω || 2 pF
- SPST Switch:
- Low On-Resistance: 4 Ω
- Low Charge Injection: 1 pC
- Low Leakage Current: 10 pA
- Flexible Configuration:
- Transimpedance Gain
- External Hold Capacitor
- Post-Gain
- Single Supply: +2.7 V to +5.5 V
- Quiescent Current: 9.2 mA
- Small Package: 3-mm × 3-mm SON-10
- OPA1S2384: Internal Switch Active High
- OPA1S2385: Internal Switch Active Low
The OPA1S2384 and OPA1S2385 (OPA1S238x) combine high bandwidth, FET-input operational amplifiers with a fast SPST CMOS switch designed for applications that require the tracking and capturing of fast signals.
By providing a 250-MHz gain bandwidth product and rail-to-rail input/output swings in single-supply operation, the OPA1S238x is capable of wideband transimpedance gain and large output signal swing simultaneously. Low input bias current and voltage noise (6 nV/√Hz) make it possible to amplify extremely low-level input signals for maximum signal-to-noise ratio.
The characteristics of the OPA1S238x make this device ideally suited for use as a wideband photodiode amplifier.
In addition, the CMOS switch and subsequent buffer amplifier allow the OPA1S238x to be easily configured as a fast sample-and-hold circuit. The external hold capacitor and post-gain options make the OPA1S238x easily adoptable to a wide range of speed and accuracy requirements. Note that the OPA1S2384 closes the internal switch with a logic-high signal, and the OPA1S2385 closes the internal switch with a logic-low signal.
The OPA1S238x are optimized for low-voltage operation from as low as +2.7 V up to +5.5 V. These devices are specified for a temperature range of –40°C to +85°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 | 250-MHz, CMOS Transimpedance Amplifier (TIA) with Integrated Switch and Buffer datasheet (Rev. A) | 2013/6/24 | |||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 |
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)。
OPA1S2385EVM — OPA1S2385 評估模組
The OPA1S2385EVM is intended to provide basic functional evaluation of the OPA1S2385. It provides thefollowing features:
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 |
|---|---|---|
| VSON (DRC) | 10 | Ultra Librarian |