精密運算放大器 (Vos < 1mV)
針對高準確度系統進行最佳化的廣泛且創新的運算放大器產品組合
依類別瀏覽
我們提供廣泛的精密運算放大器產品組合，適合汽車、工業、儀器與航太等各種應用。我們的裝置提供極低的偏移、漂移和超低雜訊，可實現高解析度量測。
依參數規格選擇
偏移電壓
輸入偏壓電流
頻寬
雜訊
低靜態電流 (IQ)
小型封裝
精密技術
特殊額定值
精密運算放大器技術
零漂移技術
具備零漂移技術的放大器採用獨特的自動修正技術來避免系統校準，且無 1/f 雜訊，可實現極高增益電路配置。
e-Trim 封裝級修整技術
組裝後多晶矽保險絲熔斷修整技術可在不影響微型化的情況下延長使用壽命，並獲得長期穩定性。
雙極性 - super-beta 技術
減少輸入偏壓電流與電流漂移，以將電流雜訊密度降到最低。配對優良的電晶體有助於實現極低的偏移電壓。
JFET 介電質隔離技術
介電隔離有助於減少寄生電容及洩漏，因此相較於非介電質隔離 JFET 的接面電容，可提供更好的電壓係數。
技術資源
TI Precision Labs
Op Amp Offset Voltage and Bias Current Limitations
Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D)
探索精選應用
Enhance patient monitoring performance by designing with our ultra-low power consumption and low offset devices.
Our precision amplifiers enable high accuracy measurements to meet your multiparameter patient monitoring requirements. Our small packages and ultra-low power consumption amplifiers offer a solution to the emerging field of portable monitoring.
- Refer to the video for portable monitoring guidance and device recommendations (see OPA391).
- Design right leg drive circuitry with a high CMRR precision amp to reject power line noise (see OPA2328).
- Interface with high impedance electrodes by input buffering with an ultra-low bias current amp (see OPA392).
特色資源
- TIDA-010005 – 軟體可配置心臟節律器偵測模組參考設計
- TIDA-010043 – 適合 SpO2 和其它醫療應用的高效、高電流、線性 LED 驅動器參考設計
- Patient monitoring – 影片系列
- Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. D) – Application brief
Improve your battery test solutions over the entire industrial temperature range with low offset drift devices.
Our precision amplifiers and reference designs assist you with creating battery test equipment optimized for cost and performance. Our ultra-low drift and low offset devices decrease system errors and ensure accuracy over wide temperature ranges.
- Optimize response time for control loop circuits. Improve battery formation and test throughput with a precision buffer for DAC output (see OPA2145 with MUX-friendly technology).
- Improve voltage and current control loop accuracy with a low offset and low offset drift precision amp without sacrificing efficiency or speed (see OPA205 and TLV07).
特色資源
- TIDA-01040 – 適合高電流應用的電池測試器參考設計
- TIDA-010086 – 數位控制成本最佳化的 10 A 電池化成與測試參考設計
- Simplify Voltage and Current Measurement in Battery Test Equipment (Rev. A) – Application brief
- How to Design a Simple and Highly Integrated Battery Testing System (Rev. B) – Application note
Prioritize board space and signal accuracy in your optical module designs with industry's smallest precision devices.
We offer the industry's smallest precision amplifier package options to tackle your optical module design requirements. Our precision amplifiers preserve signal accuracy in high gain stages by providing ultra-low input offset voltage and bias current.
- Current monitoring with shunt resistors requires low offset precision amplifiers (see OPA2376 and OPA2392 WCSP).
- Laser biasing solutions are enabled with our high output drive precision amplifiers (see OPA2333P).
- Transimpedance amplifier alternatives with our low input bias current amps (see OPA3s328 with integrated switches and OPA2328).
特色資源
- TIDA-01525 – 8 通道 16 位元 200mA 電流輸出 DAC 參考設計
利用我們符合車用資格的精密裝置產品組合，為 HEV 和 EV 提供準確性和安全性的設計。
我們的精準放大器可將油電混合車 (HEV) 與電動車 (EV) 的誤差降到最低。以低偏移運算放大器，高共模拒斥比儀器放大器與高輸出電流功率放大器，滿足您的設計需求。
優點：
- 零漂移放大器可透過快速反應安全連鎖，實現精準的電池量測與溫度讀數。
- 我們的解析器驅動器具備位置感測的內建保護功能。
- TI 提供功能安全裝置可幫助您達到汽車安全完整性等級要求。
特色資源
- TIDA-01168 – 適用於 12-V/48-V 車用系統的雙向 DC/DC 轉換器參考設計
- TIDA-03050 – 車用 mA 至 kA 級電流分流感測器參考設計
- TIDA-020018 – 汽車分流架構隔離式電流感測器參考設計，適合 DC/DC 與 OBC 應用
- ALM2403-Q1 – 適用於解析器應用且具有低失真的汽車雙通道、高電壓功率運算放大器
- OPA2388-Q1 – 符合車用資格的雙路、高頻寬、零漂移、零交越精密放大器
- INA333-Q1 – 車用低功耗、零漂移、精密儀器放大器
- 何種精準放大器最適合油電混合車 / 電動車 (HEV/EV) – 技術文章
- [FAQ] 精密放大器的功能安全 – 技術文章
Optimize the front end of your analog input module design with low offset and low noise devices.
Precision amplifiers permit highly accurate signal conditioning in the front end of analog input modules. With low noise, low drift, and low power options, our precision amplifiers are high performing in a variety of analog input module designs.
- Analog front ends require low offset voltage and low drift amp to maintain high accuracy (see OPA2387).
- Input buffering using an integrated input overvoltage protected amplifier (±60V, max) avoids errors caused by external protection schemes (see OPA2206).
- Low noise amp often needed to maintain high resolution and signal to noise ratio (see OPA182).
特色資源
- Analog input module – V-I input module channel to channel isolated (analog front end)
- Analog input module – Universal analog input module (analog front end)
- Analog input module – Temperature transducer analog input module (analog front end)
- Analog input module – V/I input module group isolated (analog front end)
- TIDA-00764 – 八通道隔離式高電壓類比輸入模組參考設計
- TIPD164 – 適用於工業輸出和溫度感測器的類比輸入模組參考設計
- Multichannel Analog Input Modules for PLC Equipment – Application brief
- Supporting High Voltage Common Mode Using Instrumentational Amplifier – Application brief
Improve your semiconductor test solutions with our diverse range of precision and power amplifiers.
Our precision amps help you to achieve high-accuracy semiconductor test solutions. Precise measurements are enabled through our large selection of wide-supply voltage, wide bandwidth, and low offset-drift precision amplifiers.
- DUT excitation circuits with our power amps (see OPA462 and OPA593) permit wide-supply voltage operation (8 to 180 V), wide bandwidth (up to 18 MHz), and high output current (200 mA, typ).
- Voltage/current measurements are highly accurate with our power amps due to their low noise (2.2 nV/Hz at 1 kHz) and low offset voltage drift (35 µV, max) operation (see OPA2210).
特色資源
- TIDA-01055 – 適用於高效能 DAQ 系統的 ADC 電壓參考緩衝器最佳化參考設計
- How to Select Precision Amplifiers for Semiconductor Testers (Rev. A) – Application brief
- Super-Beta Input Amplifiers: Features and Benefits – Application brief
設計與開發資源
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。
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