摘要：為了減小產品尺寸、降低成本、延長電池壽命、提高電池供電系統的性能，設計人員加快了低電壓、單電源系統的開發、應用趨勢。這種趨勢對消費者是有益的，但卻使得為...

Abstract: This circuit, which uses a digital potentiometer (pot) and a comparator, features droopless operation that is not normally associated with peak detectors that have traditionally used rectifiers and sample-and-holds (S/H). ...

Abstract: Unity gain op amp buffers capacitive transducer and other high-impedance signal sources without the need for bias resistors. Capacitive transducers and other high-impedance signal sources usually require AC coup...

Abstract: When does input bias current become a concern? Which architecture offers the lowest offset voltage? This application note introduces common op-amp input structures with their associated design advantages and challenges. ...

Abstract: This design idea describes a simple circuit to generate a programmable negative control voltage. It takes the output of a single supply digital-to-analog converter (DAC) and produces a variable negative voltage. The DAC output fr...

Abstract: When does the input voltage range of a low power/low voltage op amp become important? What operational amplifier should you choose when designing a battery powered handheld system? To optimize performance in tod...

Abstract: Simple level shifting circuit using a precision op amp tracks small DC voltage changes. When we want to capture a low level, long duration signal riding on a much higher DC level, we need to have adequate resolu...

Abstract: The "Deboo" Integrator simplifies the use of single-supplies by ground-referencing both the input and the output. The design of standard inverting integrators is simple when bipolar supplies are available, but i...

Abstract: Canceling the load allows the op amp the capability for high output current while maintaining all the other high-accuracy specifications such as very high open-loop gain, low offset voltage and current, low offset-voltage and off...

Abstract: The creation of the op amp introduced a new fundamental component and marked a change in thinking for analog designers. Since it is so widely used, pretty much any op amp circuit that an engineer needs to implement has already be...

摘要：一直以來，三運放儀表放大器作為工業標準被用于那些要求高增益和/或高CMRR的精密應用場合。然而，當此類放大器工作在當前絕大多數應用所要求的單電源供電系統時，存在...

摘要：本篇應用筆記闡述了高邊電流檢測放大器的性能特性。本文論述了在放大器的檢測輸入端如何使用串聯電阻。該設計方法特別適用于需要對高壓線路上檢測電阻兩端的小信號...

Abstract: Adding a charge pump provides ±5V supply rails to the operational amplifier internal to a high-side current-sense amplifier. This modification enables that amplifier to sense currents down to 0V common-mode inputs. The circuit c...

摘要：在典型的光電二極管電流監測應用中，電流監測器和雪崩光電二極管(APD)之間的壓降隨溫度和電流而變化，由此改變了總增益。本應用筆記介紹了一種利用穩壓電路保持電流檢...

摘要：ISDN、電信等系統需要一個負壓電流檢測放大器。本應用筆記介紹了一種設計負壓電流檢測放大器的方法。這種方法非常靈活，經過簡單修改即可用于不同的負壓電流檢測。本...

摘要：長期以來, 模擬比較器的使用一直處在它的“同伴”――運算放大器的陰影之中。設計人員發表了大量針對運算放大器的應用筆記, 而關于比較器的應用筆記較少。正是由于缺...

GMSK調制方式的特點和實現 l979年由日本國際電報電話公司提出的GMSK調制方式．有較好的功率頻譜特性，較憂的誤碼性能，特別是帶外輻射小，很適用于工作在VHF和UHF頻...

詳細分析了傳感器電路的噪聲源，給出了實際的解決方法如屏蔽、隔離等，以及濾波、檢波等信號處理電路。     關鍵詞：...

討論了一種用于氬弧焊機的電源系統。該系統解決了現有焊接電源存在的引弧困難、電流控制精度低等問題；電源隨工控機控制的給定焊接電流參數而變化，提高了設備的自動化程...

介紹了單片機雙CPU構成復雜系統的電路以及該系統的幾種應用實例。    關鍵詞：單片機，雙CPU，總線，數據存儲器 ...