[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-672774-105":59,"doc-detail-672774-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","opa657-features-data-sheet","OPA657 - Features - Data Sheet","","OPA657 is a 1.6-GHz, low-noise, FET-input operational amplifier aimed at high-precision analog-to-digital conversion and wideband transimpedance use. It delivers high gain bandwidth (1.6 GHz) with strong bandwidth at moderate gain and fast overdrive recovery. Key performance points include very low input offset voltage (±250 µV), low input bias current (2 pA), low input voltage noise (4.8 nV/√Hz), and high output current (70 mA). Designed for decompensated high-gain bandwidth amplification, it improves photodiode noise and bandwidth, supports amplification of very low-level signals, and applies to ADC input amplification and test/measurement front ends.",{"@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/opa657-features-data-sheet/672774/",{"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/opa657-features-data-sheet/672774.png","ImageObject",300,407,{"name":92,"@type":93},"bocahgabuttt","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-03","2026-11-02",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 are the main electrical performance highlights of OPA657?","Question",{"text":112,"@type":113},"OPA657 provides a 1.6-GHz gain bandwidth product, 700 V/µs slew rate at G = 10, and low-noise FET/JFET-input performance. It specifies low input offset voltage (±250 µV), low bias current (2 pA), and low voltage noise (4.8 nV/√Hz), along with 70 mA output current and fast overdrive recovery.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which applications are listed for OPA657?",{"text":117,"@type":113},"Applications include wideband photodiode amplifiers, wafer scanning equipment, ADC input amplifiers, test and measurement front ends, high gain precision amplifiers, and optical time domain reflectometry (OTDR).",{"name":119,"@type":110,"acceptedAnswer":120},"How does OPA657 support photodiode and transimpedance performance?",{"text":121,"@type":113},"The device is described as a decompensated, high-gain bandwidth amplifier with very low input bias current and capacitance, which supports performance for relatively high source impedances. Photodiode applications are noted to see improved noise and bandwidth, and broadband photodetector use benefits from the JFET input’s very low current noise and low voltage noise.","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},672774,1793607134,{"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},962094248839,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","OPA657 1.6-GHz, Low-Noise, FET-Input Operational Amplifier  \n1 Features  \n• High Gain Bandwidth Product: 1.6 GHz  \n• High Bandwidth 275 MHz (G = 10)  \n• Slew Rate 700 V/µs (G = 10, 1-V Step)  \n• Available in High Grade With Improved DC Specifications  \n• Operating Temperature Range: –40°C to 85°C  \n• Low-Input Offset Voltage: ±250 µV  \n• Low-Input Bias Current: 2 pA    \n• Low-Input Voltage Noise: 4.8 nV/√ Hz  \n• High-Output Current: 70 mA  \n• Fast Overdrive Recovery  \n2 Applications  \n• Wideband Photodiode Amplifier  \n• Wafer Scanning Equipment  \n• ADC Input Amplifier  \n• Test and Measurement Front End  \n• High Gain Precision Amplifier  \n• Optical Time Domain Reflectometry (OTDR)  \nFrequency Response of 200-kΩ Transimpedance Amplifier  \n100k 1M 10M 50M  \nFrequency (Hz)  \n3 Description  \nThe OPA657 device combines a high-gain bandwidth, low-distortion, voltage-feedback operational amplifier with a low-voltage noise JFET-input stage to offer avery high dynamic range amplifier for high-precision ADC (analog-to-digital converter) driving or wideband transimpedance applications. Photodiode applications see improved noise and bandwidth using this decompensated, high-gain bandwidth amplifier.  \nVery low level signals can be significantly amplified ina single OPA657 gain stage with exceptional bandwidth and accuracy. Having a high 1.6-GHz gain bandwidth product gives greater than 10-MHz signal bandwidths up to gains of 160 V/V (44 dB) . The very low input bias current and capacitance supports this performance even for relatively high source impedances.  \nBroadband photodetector applications benefit from the low-voltage noise JFET inputs for the OPA657 . The JFET input contributes virtually no current noise while for broadband applications, a low voltage noise is also required. The low 4.8 nV/√ Hz input voltage noise provides exceptional input sensitivity for higher bandwidth applications. The example shown below gives a total equivalent input noise current of 1.8 pA/√Hz over a 10-MHz bandwidth.  \nDevice Information(1)  \n\n| PART NUMBER | PACKAGE | BODY SIZE (NOM) |\n| --- | --- | --- |\n| OPA657 | SOT-23 (5) | 2.90 mm × 1.60 mm |\n|  | SOIC (8) | 4.90 mm × 3.91 mm |\n\n(1) For all available packages, see the orderable addendum atthe end of the data sheet.  \nWideband Photodiode Transimpedance Amplifier  \nl   \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.  \nOPA657  \nSBOS197F –DECEMBER 2001–REVISED AUGUST 2015  \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 Related Operational Amplifier Products.............. 3\u003Cbr>6 Pin Configuration and Functions ......................... 3\u003Cbr>7 Specifications......................................................... 4\u003Cbr>7.1 Absolute Maximum Ratings ...................................... 4\u003Cbr>7.2 ESD Ratings.............................................................. 4\u003Cbr>7.3 Recommended Operating Conditions ....................... 4\u003Cbr>7.4 Thermal Information .................................................. 4\u003Cbr>7.5 Electrical Characteristics: VS = ±5 V ......................... 5\u003Cbr>7.6 Electrical Characteristics: VS- ±5 V, High-Grade DC Specifications ............................................................. 7\u003Cbr>7.7 Typical Characteristics: VS = ±5 V ............................ 8\u003Cbr>8 Detailed Description ............................................ 13\u003Cbr>8.1 Overview ................................................................. 13 | 8.2 Feature Description ..........................","cbCaimuEnLbAao0K","https://ap.wps.com/l/cbCaimuEnLbAao0K","pdf",1660427,39,"English","# 1 Features\n# 2 Applications\n# 3 Description\n# 4 Revision History\n# 5 Related Operational Amplifier Products\n# 6 Pin Configuration and Functions\n# 7 Specifications\n## 7.1 Absolute Maximum Ratings\n## 7.2 ESD Ratings\n## 7.3 Recommended Operating Conditions\n## 7.4 Thermal Information\n## 7.5 Electrical Characteristics: VS = ±5 V\n## 7.6 Electrical Characteristics: VS = ±5 V, High-Grade DC Specifications\n## 7.7 Typical Characteristics: VS = ±5 V\n# 8 Detailed Description\n## 8.1 Overview\n## 8.2 Feature Description\n## 8.3 Device Functional Modes\n# 9 Application and Implementation\n## 9.1 Application Information\n## 9.2 Typical Application\n# 10 Power Supply Recommendations\n# 11 Layout\n## 11.1 Layout Guidelines\n## 11.2 Layout Example\n## 11.3 Thermal Considerations\n# 12 Device and Documentation Support\n## 12.1 Community Resources\n## 12.2 Trademarks\n## 12.3 Electrostatic Discharge Caution\n## 12.4 Glossary\n# 13 Mechanical, Packaging, and Orderable Information","[{\"question\":\"What are the main electrical performance highlights of OPA657?\",\"answer\":\"OPA657 provides a 1.6-GHz gain bandwidth product, 700 V/µs slew rate at G = 10, and low-noise FET/JFET-input performance. It specifies low input offset voltage (±250 µV), low bias current (2 pA), and low voltage noise (4.8 nV/√Hz), along with 70 mA output current and fast overdrive recovery.\"},{\"question\":\"Which applications are listed for OPA657?\",\"answer\":\"Applications include wideband photodiode amplifiers, wafer scanning equipment, ADC input amplifiers, test and measurement front ends, high gain precision amplifiers, and optical time domain reflectometry (OTDR).\"},{\"question\":\"How does OPA657 support photodiode and transimpedance performance?\",\"answer\":\"The device is described as a decompensated, high-gain bandwidth amplifier with very low input bias current and capacitance, which supports performance for relatively high source impedances. Photodiode applications are noted to see improved noise and bandwidth, and broadband photodetector use benefits from the JFET input’s very low current noise and low voltage noise.\"}]","OPA657 - Features - Data Sheet | PDF",98]