OPA182
- Ultra-high precision:
- Zero-drift: 0.003 µV/°C
- Ultra-low offset voltage: 4 µV (maximum)
- Excellent dc precision:
- CMRR: 168 dB
- Open-loop gain: 170 dB
- Low noise:
- en at 1 kHz: 5.7 nV/√Hz
- 0.1-Hz to 10-Hz noise: 0.12 µVPP
- Excellent dynamic performance:
- Gain bandwidth: 5 MHz
- Slew rate: 10 V/µs
- Fast settling: 10-V step, 0.01% in 1.7 µs
- Robust design:
- MUX-friendly inputs
- RFI and EMI filtered inputs
- Wide supply: ±2.25 V to ±18 V, 4.5 V to 36 V
- Quiescent current: 0.85 mA
- Rail-to-rail output
- Input includes negative rail
The OPA182, OPA2182, and OPA4182 (OPAx182) are ultra-low noise, fast-settling, zero-drift, high-precision operational amplifiers, These devices provide rail-to-rail output operation and feature a unique MUX-friendly architecture and controlled start-up system. These devices also feature excellent ac performance combined with only 0.45 µV of offset voltage and 0.003 µV/°C of drift over temperature. All these features make the OPAx182 a great choice for data acquisition, battery test, analog input modules, weigh scales, and any other systems requiring high dc precision and low noise.
The MUX-friendly input architecture prevents inrush current when applying large input differential voltages and improves settling performance in multichannel systems. Moreover, the controlled start-up system rejects any inrush current when ramping up the supply rails, all while providing robust ESD protection during shipment, handling, and assembly.
The device is specified from –40°C to +125°C.
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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 | OPAx182 36-V, 5-MHz, Low-Noise, Zero-Drift, MUX-Friendly, Precision Op Amps datasheet (Rev. E) | PDF | HTML | 2022/8/30 | ||
| 白皮書 | Optimizing Chopper Amplifier Accuracy (Rev. A) | PDF | HTML | 2025/5/15 | |||
| 應用說明 | Static Magnet Power Supply Design for Magnetic Resonance Imaging Application | PDF | HTML | 2024/1/22 | |||
| Application brief | MUX-Friendly, Precision Operational Amplifiers (Rev. C) | PDF | HTML | 2022/2/8 | |||
| 應用說明 | Voltage-to-current (V-I) converter circuit with MOSFET (Rev. A) | PDF | HTML | 2021/8/20 | |||
| Application brief | Minimize Errors in Weigh-Scales With Zero-Drift, EMI-Hardened, Precision Amps (Rev. A) | PDF | HTML | 2020/12/8 | |||
| Application brief | How to Select Precision Amplifiers for Semiconductor Testers (Rev. A) | PDF | HTML | 2020/12/3 | |||
| 類比設計期刊 | Precision signal conditioning for safety-enabled AIMs in factory automation | 2019/9/30 |
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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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)
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- DCK (SC70-5 和 SC70-6)
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 (...)
OPA182, OPA2182 and OPA4182 TINA-TI SPICE Model (Rev. C)
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。
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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 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| SOT-23 (DBV) | 5 | 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。