[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-671547-105":59,"doc-detail-671547-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","lm148lm149-series-quad-741-op-amp","LM148/LM149 Series Quad 741 Op Amp","","LM148/LM149 quad operational amplifiers provide true 741-compatible functional characteristics with four independent high-gain, internally compensated low-power amplifier channels. The series emphasizes low input offset voltage and currents, excellent inter-amplifier isolation, and reduced total supply current compared with a single 741-class device. LM149 extends bandwidth, offering a gain bandwidth product of 4 MHz at AV≥5. The document lists key features, schematic reference, absolute maximum ratings, operating ranges, and detailed electrical characteristics and limits for LM148/LM149, LM248, and LM348.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/lm148lm149-series-quad-741-op-amp/671547/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/lm148lm149-series-quad-741-op-amp/671547.png","ImageObject",300,407,{"name":92,"@type":93},"Obex","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-02","2026-11-01",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is the main purpose of the LM148/LM149 quad op amp series?","Question",{"text":112,"@type":113},"It delivers true quad 741-compatible operational amplifier behavior using four independent, internally compensated, high-gain low-power amplifiers with similar functional characteristics to the familiar 741.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the LM149 differ from the LM148?",{"text":117,"@type":113},"LM149 keeps the LM148 features and adds a higher gain bandwidth product: 4 MHz at AV of 5 or greater.",{"name":119,"@type":110,"acceptedAnswer":120},"What kinds of ratings and specifications are provided?",{"text":121,"@type":113},"The document includes absolute maximum ratings such as supply and differential input voltage limits, operating and storage temperature ranges, soldering information, and detailed electrical characteristics like offset voltage/current, gain, bandwidth, and slew rate.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},671547,1793577162,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":129,"read_time":144},5909898192665,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","[www.agelectronica.com](www.agelectronica.com) [www.agelectronica.com](www.agelectronica.com)  \n\n| |  | December 2000 |\n| --- | --- | --- |\n| LM148/LM248/LM348 Quad 741 Op Amps\u003Cbr>LM149\u003Cbr>Wide Band Decompensated (AV (MIN) = 5) |  |  |\n| General Description\u003Cbr>The LM148 series is a true quad 741 . It consists of four independent, high gain, internally compensated, low power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar 741 operational amplifier. In addition the total supply current for all four amplifiers is comparable to the supply current of a single 741 type op amp. Other features include input offset currents and input bias current which are much less than those of a standard 741 . Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling. The LM149 series has the same features as the LM148 plus a gain bandwidth product of 4 MHz at again of 5 or greater.\u003Cbr>The LM148 can be used anywhere multiple 741 or 1558 type amplifiers are being used and in applications where amplifier matching or high packing density is required. For lower power refer to LF444 . | Features\u003Cbr>n 741 op amp operating characteristics n Class AB output stage—no crossover distortion n Pin compatible with the LM124\u003Cbr>n Overload protection for inputs and outputs\u003Cbr>n Low supply current drain: 0.6 mA/Amplifier\u003Cbr>n Low input offset voltage: 1 mV\u003Cbr>n Low input offset current: 4 nA\u003Cbr>n Low input bias current 30 nA\u003Cbr>n High degree of isolation between amplifiers: 120 dB\u003Cbr>n Gain bandwidth product\u003Cbr>n LM148 (unity gain): 1.0 MHz n LM149 (AV ≥ 5): 4 MHz |  |\n| Schematic Diagram\u003Cbr>\u003Cbr>DS007786-1\u003Cbr>* 1 pF in the LM149 |  |  |\n\nLM148/LM149 Series Quad 741 Op Amp  \n© 2001 National Semiconductor Corporation DS007786 [www.national.com](www.national.com)  \n[www.agelectronica.com](www.agelectronica.com) [www.agelectronica.com](www.agelectronica.com)  \n[www.agelectronica.com](www.agelectronica.com) [www.agelectronica.com](www.agelectronica.com)  \nLM148/LM149/LM248/LM348  \n\n| Absolute Maximum Ratings (Note 4)\u003Cbr>If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.\u003Cbr>LM148/LM149 LM248 LM348\u003Cbr>Supply Voltage ± 22V ± 18V ± 18V\u003Cbr>Differential Input Voltage ± 44V ± 36V ± 36V\u003Cbr>Output Short Circuit Duration (Note 1) Continuous Continuous Continuous\u003Cbr>Power Dissipation (Pd at 25˚C) and Thermal Resistance (θjA),(Note 2)\u003Cbr>Molded DIP (N) Pd — — 750 mW\u003Cbr>θjA — — 100˚C/W Cavity DIP (J) Pd 1100 mW 800 mW 700 mW\u003Cbr>θJA 110˚C/W 110˚C/W 110˚C/W Maximum Junction Temperature (TjMAX) 150˚C 110˚C 100˚C Operating Temperature Range −55˚C ≤ TA ≤ +125˚C −25˚C ≤ TA ≤ +85˚C 0˚C ≤ TA ≤ +70˚C Storage Temperature Range −65˚C to +150˚C −65˚C to +150˚C −65˚C to +150˚C Lead Temperature (Soldering, 10 sec. ) Ceramic 300˚C 300˚C 300˚C Lead Temperature (Soldering, 10 sec. ) Plastic 260˚C Soldering Information\u003Cbr>Dual-In-Line Package\u003Cbr>Soldering (10 seconds) 260˚C 260˚C 260˚C\u003Cbr>Small Outline Package\u003Cbr>Vapor Phase (60 seconds) 215˚C 215˚C 215˚C\u003Cbr>Infrared (15 seconds) 220˚C 220˚C 220˚C\u003Cbr>See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount devices.\u003Cbr>ESD tolerance (Note 5) 500V 500V 500V\u003Cbr>Electrical Characteristics\u003Cbr>(Note 3) |  |  |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| Parameter | Conditions | LM148/LM149 |  |  | LM248 |  |  | LM348 |  |  | Units |\n|  |  | Min | Typ | Max | Min | Typ | Max | Min | Typ | Max |  |\n| Input Offset Voltage | TA = 25˚C, RS ≤ 10 kΩ |  | 1.0 | 5.0 |  | 1.0 | 6.0 |  | 1.0 | 6.0 | mV |\n| Input Offset Current | TA = 25˚C |  | 4 | 25 |  | 4 | 50 |  | 4 | 50 | nA |\n| Input Bias Current | TA = 25˚C |  | 30 | 100 |  | 30 | 200 |  | 30 | 200 | nA |\n| I","cbCaib7E4pTEpgRE","https://ap.wps.com/l/cbCaib7E4pTEpgRE","pdf",456023,18,"English","# General Description\n# Features\n# Schematic Diagram\n# Absolute Maximum Ratings\n# Electrical Characteristics","[{\"question\":\"What is the main purpose of the LM148/LM149 quad op amp series?\",\"answer\":\"It delivers true quad 741-compatible operational amplifier behavior using four independent, internally compensated, high-gain low-power amplifiers with similar functional characteristics to the familiar 741.\"},{\"question\":\"How does the LM149 differ from the LM148?\",\"answer\":\"LM149 keeps the LM148 features and adds a higher gain bandwidth product: 4 MHz at AV of 5 or greater.\"},{\"question\":\"What kinds of ratings and specifications are provided?\",\"answer\":\"The document includes absolute maximum ratings such as supply and differential input voltage limits, operating and storage temperature ranges, soldering information, and detailed electrical characteristics like offset voltage/current, gain, bandwidth, and slew rate.\"}]","LM148/LM149 Series Quad 741 Op Amp | PDF",45]