[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-562855-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-562855-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","op-amp-rectifiers-peak-detectors-and-clamps","Op Amp Rectifiers, Peak Detectors and Clamps","","Application note AN1353 explains how op-amp-based rectifiers, peak detectors, and clamp circuits convert and shape signals for system-level functions. It covers half-wave and full-wave rectification using diodes, including component selection criteria such as diode forward current and peak inverse voltage, and how diode parasitic capacitance affects nonlinearity and reverse recovery. Practical guidance includes choosing diodes, resistors, and op-amp parameters (gain bandwidth product and slew rate) to meet accuracy and speed limits.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/op-amp-rectifiers-peak-detectors-and-clamps/562855/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/op-amp-rectifiers-peak-detectors-and-clamps/562855.png","ImageObject",300,407,{"name":42,"@type":43},"ahduag","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-15","2026-10-12",true,{"@type":52,"interactionType":53,"userInteractionCount":33},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What applications are covered in this note besides rectifiers?","Question",{"text":62,"@type":63},"It includes peak detectors and clamps, and discusses common system roles such as AC-to-DC power conversion, automatic gain control, power monitoring, and AM demodulation.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"How is diode peak inverse voltage (PIV/PRV) determined for a rectifier?",{"text":67,"@type":63},"The diode must withstand the maximum applied peak voltage in reverse bias; a listed design relation is VPIV(rating) ≥ VPK(max) + VD(on).",{"name":69,"@type":60,"acceptedAnswer":70},"Why do these circuits have speed and linearity limitations?",{"text":71,"@type":63},"Diode parasitic capacitance causes nonlinear behavior that can generate harmonics and reverse recovery effects, while op-amp bandwidth and slew rate limit the maximum rectifiable frequency.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},562855,1791854864,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,100,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":92,"show_sort_weight":93,"slug":94},"Exam",70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":102,"slug":103},6,50,"technology",{"id":105,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},7,"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":96,"slug":129},19,"General","general",{"code":4,"msg":81,"data":131},{"doc_id":78,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":101,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":33,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":107},3985747870414,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","AN1353  \nOp Amp Rectifiers, Peak Detectors and Clamps  \nAuthor: Dragos Ducu, Microchip Technology Inc.  \nINTRODUCTION  \nThis application note covers a wide range of applications, such as half-wave rectifiers, full-wave rectifiers, peak detectors and clamps. Many of the circuits are simple in terms of component count, but they play important roles in overall systems design, such as:  \n• AC to DC Power Conversion  \n• Automatic Gain Control Loops  \n• Power Monitoring Applications  \n• AM Demodulator  \nBASIC RECTIFIERS  \nThe basic rectifiers have been designed with diodes. Figure 1 shows such a simple series circuit, driven by an AC source. When the diode is reverse-biased, it acts as a very high impedance device. Figure 1shows a negative half wave rectifier. It outputs nearly the full input voltage across the diode when reverse biased. A similar circuit in Figure 2 shows a positive half-wave rectifier. If a full-wave rectifier is desired, more diodes must be used to configure a bridge, as shown in  \nFigure 3 . The input signal must be larger than the voltage across the diode to ensure that the diode is forward biased.  \nFIGURE 1: Negative Half-Wave  \nRectifier.  \n\n| | V\u003Cbr>\u003Cbr>|\n| --- | --- |\n\nFIGURE 2: Positive Half-Wave Rectifier.  \n\n| \u003Cbr>VOUT\u003Cbr>\u003Cbr>| V\u003Cbr>\u003Cbr>|\n| --- | --- |\n\nFIGURE 3: Full-Wave Rectifier.  \nChoosing the Components  \nSELECTING THE DIODE  \nWhen choosing the diode, the most important parameters are the maximum forward current (IF), and the peak inverse voltage rating (PIV) of the diode. The peak inverse voltage is the maximum voltage the diode can withstand when it is reverse-biased. If this voltage is exceeded, the diode may be destroyed. The diode must have a peak inverse voltage rating that is higher than the maximum voltage applied to it in an application. In many diode data sheets, PIV is referred to as peak reverse voltage (PRV) .  \n© 2011 Microchip Technology Inc. DS01353A-page 1  \nAN1353  \nThe peak inverse voltage of the diode will be equal to:  \nEQUATION 1:  \nVPIV(rating) ≥ VPK( max ) + VD ( on ) Where:  \nVPIV = Peak inverse voltage VPK(max) = Maximum peak amplitude  \nVD(on) = Diode voltage on when in  \nEvery diode has a parasitic capacitance and, by default, has a time charge storage. This charge storage mechanism is nonlinear, leading to a nonlinear capacitance. This effect is very important because thenonlinearity of the diode can generate harmonics. For example, the output voltage becomes negative for a short time. This period is called reverse recovery time. During the transition, the diode’s parasitic capacitance will interact with the circuit resistors to modify the circuit’s behavior.  \nFor most general purpose applications, low power signal diodes such as 1N4148, are adequate. For high accuracy applications, where offset errors and reverse diode leakage current are critical, a low leakage FET transistor can be used as a diode (short Drain and Source together), such as 2N4117A. In applications where speed is important, silicon Schottky barrier diodes are worth considering, since they have a low forward ON voltage of only 0.4V and are fast.  \nSELECTING THE RESISTOR  \nThe resistor is selected based on the load current. One limitation is the value of load resistor. The value of the load resistor must be less than the diode resistance when in reverse bias. The parasitic capacitance of the diode interacts with the load resistor causing a time constant. If this constant is large, the output voltage will have a delayed recovery.  \nAdvantages and Disadvantages  \nThe major disadvantage of these circuits is thenonlinearity of the diodes. If the input signal is smaller than the threshold voltage of the diode, the signal cannot be recovered. To reduce the threshold voltage of the diode and improve linearity, we need to include the diode into the feedback loop of the operational amplifier.  \nPractical Examples  \nFigures 4 – 6 show practical samples when using the 1N4001 diode and R L = 1 kΩ. The frequency i","cbCainGuhgSi6oO6","https://ap.wps.com/l/cbCainGuhgSi6oO6","pdf",673965,16,"English","# Introduction\n# Basic Rectifiers\n## Choosing the Components\n## Advantages and Disadvantages\n# Active Half-Wave Rectifier\n## Choosing the Components","[{\"question\":\"What applications are covered in this note besides rectifiers?\",\"answer\":\"It includes peak detectors and clamps, and discusses common system roles such as AC-to-DC power conversion, automatic gain control, power monitoring, and AM demodulation.\"},{\"question\":\"How is diode peak inverse voltage (PIV/PRV) determined for a rectifier?\",\"answer\":\"The diode must withstand the maximum applied peak voltage in reverse bias; a listed design relation is VPIV(rating) ≥ VPK(max) + VD(on).\"},{\"question\":\"Why do these circuits have speed and linearity limitations?\",\"answer\":\"Diode parasitic capacitance causes nonlinear behavior that can generate harmonics and reverse recovery effects, while op-amp bandwidth and slew rate limit the maximum rectifiable frequency.\"}]","Op Amp Rectifiers, Peak Detectors and Clamps | PDF",1791809903]