[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-296460-105":59,"doc-detail-296460-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","lmp8640-q1hv-precision-high-voltage-current-sense-amplifiers-datasheet","LMP8640/-Q1/HV Precision High Voltage Current Sense Amplifiers - Datasheet","","LMP8640, LMP8640-Q1 and LMP8640HV are precision current-sense amplifiers designed to measure small differential voltages across a sense resistor while operating under high common-mode input voltages. Their supply range spans 2.7 V to 12 V, and they support different common-mode voltage ranges from -2 V to 42 V (LMP8640/LMP8640-Q1) or up to -2 V to 76 V (LMP8640HV). Fixed-gain options (20 V/V, 50 V/V, 100 V/V) target gain accuracy as low as 0.25% with buffered low output impedance for DC and battery-powered systems.",{"@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/lmp8640-q1hv-precision-high-voltage-current-sense-amplifiers-datasheet/296460/",{"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/lmp8640-q1hv-precision-high-voltage-current-sense-amplifiers-datasheet/296460.png","ImageObject",300,407,{"name":92,"@type":93},"Graffin","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-19","2026-09-18",true,{"@type":102,"interactionType":103,"userInteractionCount":39},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does the LMP8640 family measure in a current-sensing circuit?","Question",{"text":112,"@type":113},"They detect small differential voltages across a sense resistor while tolerating high common-mode input voltages.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What common-mode voltage ranges are supported by each device variant?",{"text":117,"@type":113},"LMP8640 and LMP8640-Q1 accept -2 V to 42 V, while LMP8640HV accepts -2 V to 76 V.",{"name":119,"@type":110,"acceptedAnswer":120},"Which gain options and accuracy are provided by these amplifiers?",{"text":121,"@type":113},"Fixed gains of 20 V/V, 50 V/V, and 100 V/V are available, with max gain error of 0.25%.","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},296460,1789732479,{"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":39,"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},3573418547284,"https://eur-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","LMP8640/-Q1/HV Precision High Voltage Current Sense Amplifiers  \n1 Features  \n• Typical Values, TA = 25°C  \n• High Common-Mode Voltage Range  \n– LMP8640: -2 V to 42 V  \n– LMP8640-Q1: -2 V to 42 V, AEC-Q100  \n– LMP8640HV: -2 V to 76 V  \n• Supply Voltage Range: 2.7 V to 12 V  \n• Gain Options: 20 V/V; 50 V/V; 100 V/V  \n• Max Gain Error: 0.25%  \n• Low Offset Voltage: 900 µV  \n• Input Bias Current: 13 µA  \n• PSRR: 85 dB  \n• CMRR (2 . 1V to 42V): 103 dB  \n• Temperature Range: -40°C to 125°C  \n• 6-Pin Thin SOT-23 Package  \n2 Applications  \n• High-Side Current Sense  \n• Vehicle Current Measurement  \n• Motor Controls  \n• Battery Monitoring  \n• Remote Sensing  \n• Power Management  \n3 Description  \nThe LMP8640, LMP8640-Q1 and the LMP8640HV are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence of high input common mode voltages with a supply voltage range from 2.7 V to 12 V. The LMP8640 and LMP8640-Q1 accept input signals with common mode voltage range from-2 V to 42 V, while the LMP8640HV accepts input signal with common mode voltage range from-2 V to 76 V. The LMP8640 and LMP8640HV have fixed gain for applications that demand accuracy over temperature. The LMP8640 and LMP8640HV come out with three different fixed gains 20 V/V, 50 V/V, 100 V/V ensuring a gain accuracy as low as 0.25% . The output is buffered in order to provide low output impedance. This high side current sense amplifier is ideal for sensing and monitoring currents in DC or battery powered systems, excellent AC and DC specifications over temperature, and keeps errors in the current sense loop to a minimum. The LMP8640 and LMP8640HV are ideal choice for industrial and consumer applications, while the LMP8640-Q1 is an AEC-Q100 grade 1 qualified version of the LMP8640 for automotive applications. The LMP8640-x is available in SOT-23-6 package.  \nDevice Information (1)  \n\n| PART NUMBER | PACKAGE | BODY SIZE (NOM) |\n| --- | --- | --- |\n| LMP8640 | SOT23 (6) | 2.9 mm x 1.6 mm |\n| LMP8640-Q1 |  |  |\n| LMP8640HV |  |  |\n\n(1) For all available packages, see the orderable addendum atthe end of the datasheet.  \nSimplified Schematic  \nIS   \nG = 25 V/V in 50 V/V gain option G = 50 V/V in 100 V/V gain option  \nOutput Voltage vs Input Voltage  \nVSENSE (mV)  \nAn IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.  \nLMP8640, LMP8640-Q1, LMP8640HV  \nSNOSB28G –AUGUST 2010–REVISED NOVEMBER 2014  \n[www.ti.com](www.ti.com)  \n\n| Table of Contents |  |\n| --- | --- |\n| 1 Features .................................................................. 1\u003Cbr>2 Applications ........................................................... 1\u003Cbr>3 Description ............................................................. 1\u003Cbr>4 Revision History..................................................... 2\u003Cbr>5 Device Comparison Table ..................................... 3\u003Cbr>6 Pin Configuration and Functions ......................... 3\u003Cbr>7 Specifications......................................................... 4\u003Cbr>7.1 Absolute Maximum Ratings ...................................... 4\u003Cbr>7.2 Handling Ratings-LMP8640, LMP8640HV.............. 4\u003Cbr>7.3 Handling Ratings-LMP8640-Q1 .............................. 4\u003Cbr>7.4 Recommended Operating Conditions(2) ................... 4\u003Cbr>7.5 Thermal Information .................................................. 5\u003Cbr>7.6 Electrical Characteristics 2.7 V ................................ 5\u003Cbr>7.7 Electrical Characteristics 5 V (5) ................................ 6\u003Cbr>7.8 Electrical Characteristics 12 V (5) .............................. 8\u003Cbr>7.9 Typical Characteristics ............................................ 10\u003Cbr>8 Detailed Description ............................................ 14\u003Cbr>8.1 Overview ...............................................................","cbCaieOhK3TDIEvr","https://ap.wps.com/l/cbCaieOhK3TDIEvr","pdf",1100739,34,"English","# Features\n# Applications\n# Description\n# Revision History\n# Device Comparison Table\n# Pin Configuration and Functions\n# Specifications\n## Absolute Maximum Ratings\n## Handling Ratings\n## Recommended Operating Conditions\n## Thermal Information\n## Electrical Characteristics\n# Detailed Description\n## Overview\n## Functional Block Diagram\n## Feature Description\n## Device Functional Modes\n# Application and Implementation\n## Application Information\n## Typical Application\n## Do's and Don'ts\n# Power Supply Recommendations\n# Layout\n## Layout Guidelines\n## Layout Example\n# Device and Documentation Support\n## Device Support\n## Documentation Support\n## Related Links\n## Trademarks\n## Electrostatic Discharge Caution\n## Glossary\n# Mechanical, Packaging, and Orderable Information","[{\"question\":\"What does the LMP8640 family measure in a current-sensing circuit?\",\"answer\":\"They detect small differential voltages across a sense resistor while tolerating high common-mode input voltages.\"},{\"question\":\"What common-mode voltage ranges are supported by each device variant?\",\"answer\":\"LMP8640 and LMP8640-Q1 accept -2 V to 42 V, while LMP8640HV accepts -2 V to 76 V.\"},{\"question\":\"Which gain options and accuracy are provided by these amplifiers?\",\"answer\":\"Fixed gains of 20 V/V, 50 V/V, and 100 V/V are available, with max gain error of 0.25%.\"}]","LMP8640/-Q1/HV Precision High Voltage Current Sense Amplifiers - Datasheet | PDF",86]