Wherever possible the overall technique used for this series will be "definition by example" withgeneric formulae included for use in other applications. To make Stability analysis easy we will usemore than one tool from our toolbox with data sheet information, tricks, rules-of-thumb, SPICESimulation, and real-world testing all accelerating our design of stable operational amplifier (op amp)circuits. These tools are specifically targeted at voltage feedback op amps with unity-gain bandwidths<20 MHz, although many of the techniques are applicable to any voltage feedback op amp. 20 MHz ischosen because as we increase to higher bandwidth circuits there are other major factors in closing theloop: such as parasitic capacitances on PCBs, parasitic inductances in capacitors, parasitic inductancesand capacitances in resistors, etc. Most of the rules-of-thumb and techniques were developed not justfrom theory but from the actual building of real-world circuits with op amps <20 MHz.
標簽: 運算放大器
上傳時間: 2021-11-01
上傳用戶:
Abstract: Transimpedance amplifiers (TIAs) are widely used to translate the current output of sensors like photodiode-to-voltagesignals, since several circuits and instruments can only accept voltage input. An operational amplifier with a feedback resistor fromoutput to the inverting input is the most straightforward implementation of such a TIA. However, even this simple TIA circuit requirescareful trade-offs among noise gain, offset voltage, bandwidth, and Stability. Clearly Stability in a TIA is essential for good, reliableperformance. This application note explains the empirical calculations for assessing Stability and then shows how to fine-tune theselection of the feedback phase-compensation capacitor.
標簽: Transimpedance Stabilize Amplifier Your
上傳時間: 2013-11-13
上傳用戶:daoyue
Who has never experienced oscillations issues when using an operational amplifier? Opampsare often used in a simple voltage follower configuration. However, this is not the bestconfiguration in terms of capacitive loading and potential risk of oscillations.Capacitive loads have a big impact on the Stability of operational amplifier-basedapplications. Several compensation methods exist to stabilize a standard op-amp. Thisapplication note describes the most common ones, which can be used in most cases.The general theory of each compensation method is explained, and based on this, specific
上傳時間: 2013-10-28
上傳用戶:chenbhdt
模擬集成電路的設計與其說是一門技術,還不如說是一門藝術。它比數字集成電路設計需要更嚴格的分析和更豐富的直覺。嚴謹堅實的理論無疑是嚴格分析能力的基石,而設計者的實踐經驗無疑是誕生豐富直覺的源泉。這也正足初學者對學習模擬集成電路設計感到困惑并難以駕馭的根本原因。.美國加州大學洛杉機分校(UCLA)Razavi教授憑借著他在美國多所著名大學執教多年的豐富教學經驗和在世界知名頂級公司(AT&T,Bell Lab,HP)卓著的研究經歷為我們提供了這本優秀的教材。本書自2000午出版以來得到了國內外讀者的好評和青睞,被許多國際知名大學選為教科書。同時,由于原著者在世界知名頂級公司的豐富研究經歷,使本書也非常適合作為CMOS模擬集成電路設計或相關領域的研究人員和工程技術人員的參考書。... 本書介紹模擬CMOS集成電路的分析與設計。從直觀和嚴密的角度闡述了各種模擬電路的基本原理和概念,同時還闡述了在SOC中模擬電路設計遇到的新問題及電路技術的新發展。本書由淺入深,理論與實際結合,提供了大量現代工業中的設計實例。全書共18章。前10章介紹各種基本模塊和運放及其頻率響應和噪聲。第11章至第13章介紹帶隙基準、開關電容電路以及電路的非線性和失配的影響,第14、15章介紹振蕩器和鎖相環。第16章至18章介紹MOS器件的高階效應及其模型、CMOS制造工藝和混合信號電路的版圖與封裝。 1 Introduction to Analog Design 2 Basic MOS Device Physics 3 Single-Stage Amplifiers 4 Differential Amplifiers 5 Passive and Active Current Mirrors 6 Frequency Response of Amplifiers 7 Noise 8 Feedback 9 Operational Amplifiers 10 Stability and Frequency Compensation 11 Bandgap References 12 Introduction to Switched-Capacitor Circuits 13 Nonlinearity and Mismatch 14 Oscillators 15 Phase-Locked Loops 16 Short-Channel Effects and Device Models 17 CMOS Processing Technology 18 Layout and Packaging
上傳時間: 2014-12-23
上傳用戶:杜瑩12345
精確度0.05%滿刻度±1位數(Accuracy 0.05%F.S.±1digit) 可測量交直流電流/交直流電壓/電位計/傳送器/Pt-100/荷重元/電阻等信號(Measuring DCA/DCV/ACA/ACV/Potentiometer/Transmitter/Pt-100/Load Cell/Resistor/etc……) 顯示范圍0-19999可任意規劃(Programmable rate 0 to 1999 digit) 小數點可任意規劃(Decimal point can be modified) 尺寸小,穩定性高(Dimension small & High Stability)
上傳時間: 2014-01-25
上傳用戶:RQB123
特點(FEATURES) 精確度0.1%滿刻度(Accuracy 0.1%F.S.) 多種輸入輸出選擇(Wide selection of input/output range) 三線式接線自動補償線路阻抗效應(3 wire configuration automatically compensate line resistance effects) 寬范圍交直流兩用電源設計(Wide input range for auxiliary power) 尺寸小,穩定性高(Dimension small & High Stability)
上傳時間: 2013-10-17
上傳用戶:Huge_Brother
特點(FEATURES) 精確度0.1%滿刻度(Accuracy 0.1%F.S.) 寬輸入范圍200ohm 至 50Kohm(Wide inpuet ranges from 200ohm to 50Kohm) 多種輸入輸出選擇(Wide selection of input/output range) 輸入與輸出1/輸出2絕緣耐壓 2仟伏特/1分鐘(Dielectric strength 2KVac/1min.(input/output1/output2)) 寬范圍交直流兩用電源設計(Wide input range for auxiliary power) 尺寸小,穩定性高(Dimension small & High Stability)
上傳時間: 2013-10-28
上傳用戶:sardinescn
特點(FEATURES) 精確度0.1%滿刻度(Accuracy 0.1%F.S.) 多種輸入輸出選擇(Wide selection of input/output range) 輸入與輸出1/輸出2絕緣耐壓 2仟伏特/1分鐘(Dielectric strength 2KVac/1min.(input/output1/output2)) 寬范圍交直流兩用電源設計(Wide input range for auxiliary power) 尺寸小,穩定性高(Dimension small & High Stability)
上傳時間: 2014-12-24
上傳用戶:qimingxing130
特點(FEATURES) 精確度0.03%滿刻度(Accuracy 0.03%F.S.) 頻率輸入范圍0.01Hz至80KHz(Input range from 0.01 Hz to 80KHz) 16 BIT 隔離類比輸出(16 bit DAC isolating analog output) 輸入與輸出1/輸出2絕緣耐壓 2仟伏特/1分鐘(Dielectric strength 2KVac/1min.(input/output1/output2)) 寬范圍交直流兩用電源設計(Wide input range for auxiliary power) 尺寸小,穩定性高(Dimension small & High Stability)
上傳時間: 2013-10-21
上傳用戶:dljwq
特點(FEATURES) 精確度0.1%滿刻度 (Accuracy 0.1%F.S.) 可作各式數學演算式功能如:A+B/A-B/AxB/A/B/A&B(Hi or Lo)/|A| (Math functioA+B/A-B/AxB/A/B/A&B(Hi&Lo)/|A|/etc.....) 16 BIT 類比輸出功能(16 bit DAC isolating analog output function) 輸入/輸出1/輸出2絕緣耐壓2仟伏特/1分鐘(Dielectric strength 2KVac/1min. (input/output1/output2/power)) 寬范圍交直流兩用電源設計(Wide input range for auxiliary power) 尺寸小,穩定性高(Dimension small and High Stability)
上傳時間: 2013-11-24
上傳用戶:541657925