{"id":51744,"date":"2019-05-29T07:39:55","date_gmt":"2019-05-29T07:39:55","guid":{"rendered":"https:\/\/electronicsmaker.com\/?p=51744"},"modified":"2019-05-29T07:39:55","modified_gmt":"2019-05-29T07:39:55","slug":"analog-devices-announces-new-impedance-potentiostat-analog-front-end-for-biological-chemical-sensing","status":"publish","type":"post","link":"https:\/\/electronicsmaker.com\/analog-devices-announces-new-impedance-potentiostat-analog-front-end-for-biological-chemical-sensing","title":{"rendered":"Analog Devices Announces New Impedance &#038; Potentiostat Analog Front End for Biological &#038; Chemical Sensing"},"content":{"rendered":"<p style=\"font-weight: 400;\"><strong><a href=\"https:\/\/electronicsmaker.com\/wp-content\/uploads\/2019\/05\/AD5940-SoMe-PR-Image.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright size-full wp-image-51745\" src=\"https:\/\/electronicsmaker.com\/wp-content\/uploads\/2019\/05\/AD5940-SoMe-PR-Image.jpg\" alt=\"AD5940-SoMe-PR-Image\" width=\"448\" height=\"224\" srcset=\"https:\/\/electronicsmaker.com\/wp-content\/uploads\/2019\/05\/AD5940-SoMe-PR-Image.jpg 448w, https:\/\/electronicsmaker.com\/wp-content\/uploads\/2019\/05\/AD5940-SoMe-PR-Image-300x150.jpg 300w\" sizes=\"(max-width: 448px) 100vw, 448px\" \/><\/a>BANGALORE, India, May 29 2019<\/strong>\u2013<strong><em>.\u00a0\u00a0<\/em><\/strong>\u0336\u00a0\u00a0Analog Devices, Inc.\u00a0announced today a new electrochemical &amp; impedance measurement front end that\u00a0enables\u00a0the next generation of vital sign monitoring devices and intelligent electrochemical sensors. The\u00a0AD5940\u00a0analog front end incorporates both potentiostat and electrochemical impedance spectroscopy (EIS) functionality on a single chip, allowing for sensor measurement in both time and frequency domains. The device features integrated hardware accelerators for advanced sensor diagnostics, best-in-class low noise for accurate sensor measurements and is designed for wearable \u201calways-on\u201d applications. Compared to traditional discrete solutions which pose limitations and require multiple ICs to achieve similar performance, ADI\u2019s single chip solution offers advantages in terms of system accuracy and size flexibility to measure 2-Lead, 3-Lead and 4-Lead electrochemical sensors. It\u2019s an ideal solution for applications, where high precision biological and chemical sensing is mission-critical, such as industrial gas sensing, liquid analysis, material sensing, vital signs monitoring, impedance spectroscopy and disease management.<\/p>\n<ul style=\"font-weight: 400;\">\n<li>View the AD5940 product page, download the data sheet, order samples and evaluation boards:\u00a0http:\/\/www.analog.com\/ad5940?adicid=prls_ap-in_P182091 _AD5940<\/li>\n<li>Read \u201cJack of all Trades in Impedance Measurement\u201d\u00a0https:\/\/www.analog.com\/media\/en\/technical-documentation\/tech-articles\/Jack-of-All-Trades-in-Impedance-Measurement.pdf?adicid=prls_ap-in_P182091 _AD5940<\/li>\n<\/ul>\n<p style=\"font-weight: 400;\"><strong>AD5940<\/strong><\/p>\n<p style=\"font-weight: 400;\">The AD5940 is the lowest power, highest performance Impedance and electrochemical front end with intelligent autonomous control. The analog front end combines leading levels of integration and performance for potentiostat and impedance-based electrochemical sensor managements. The on-chip potentiostat allows for a host of standard electrochemical-based measurement techniques, such as amperometric, voltametric, or impedance measurements.<\/p>\n<p style=\"font-weight: 400;\">The AD5940 is designed to be used in healthcare-related bio-impedance systems for both skin impedance and body impedance measurements, and also to work with the\u00a0AD8233\u00a0AFE in a complete bioelectric\/biopotential measurement system.<\/p>\n<p style=\"font-weight: 400;\">The analog front end chip can measure Voltage, current and impedance. The device consists of two potentiostat loops, a low bandwidth loop with ability to generate AC signals up to 200 Hz and a high bandwidth loop with ability to generate AC signals up to 200kHz. The ultra-low power Potentiostat consumes 6.5uA in biased mode.<em>\u00a0<\/em><\/p>\n<p style=\"font-weight: 400;\">The AD5940 measurement channel features a 16-bit, 800 kSPS, multichannel successive approximation register (SAR) analog-to-digital converter (ADC) with input buffers, a built in anti-alias\u00a0filter (AAF), and a programmable gain amplifier (PGA). The ADC features an input voltage range of \u00b11.35 V. An input mux before the ADC allows the user to select an input channel for measurement. These input channels include multiple external current and voltage inputs, and internal voltage channels. The internal channels enable on chip diagnostic measurements of the\u00a0internal supply voltages, die temperature, and reference voltages.<\/p>\n<p style=\"font-weight: 400;\">The AD5940 measurement blocks can be controlled via direct\u00a0register writes through the Serial Peripheral Interface (SPI) interface, or alternatively, by using a pre-programmable sequencer, which provides autonomous\u00a0control of the AFE chip. 6 kB of static random access memory (SRAM) is partitioned for a deep data first in, first out (FIFO) and command memory. Measurement commands are stored in the command memory and measurement results are stored in\u00a0the data FIFO. A number of FIFO related interrupts are available\u00a0to indicate state of the FIFO.<strong>\u00a0<\/strong><\/p>\n<p style=\"font-weight: 400;\"><strong>Pricing &amp; Availability<\/strong><\/p>\n<table style=\"font-weight: 400;\" width=\"624\">\n<tbody>\n<tr>\n<td width=\"143\"><strong>Product<\/strong><\/td>\n<td width=\"107\"><strong>Sample Availability<\/strong><\/td>\n<td width=\"125\"><strong>Production Availability<\/strong><\/td>\n<td width=\"125\"><strong>Price per 1000-unit Quantity<\/strong><\/td>\n<td width=\"125\"><strong>Package<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"143\"><strong><em>AD5940<\/em><\/strong><\/td>\n<td width=\"107\">Now<\/td>\n<td width=\"125\">Released<\/td>\n<td width=\"125\">$4.17<\/td>\n<td width=\"125\">3.6 mm \u00d7 4.2 mm, 56 ball WLCSP<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-weight: 400;\"><strong><em>\u00a0<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>BANGALORE, India, May 29 2019\u2013.\u00a0\u00a0\u0336\u00a0\u00a0Analog Devices, Inc.\u00a0announced today a new electrochemical &amp; impedance measurement front end that\u00a0enables\u00a0the next generation of vital sign monitoring devices and intelligent electrochemical sensors. The\u00a0AD5940\u00a0analog front end incorporates both potentiostat and electrochemical impedance spectroscopy (EIS) functionality on a single chip, allowing for sensor measurement in both time and frequency domains. The [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":51745,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[3860,3363],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Analog Devices Announces New Impedance &amp; Potentiostat Analog Front End for Biological &amp; Chemical Sensing - Electronics Maker<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/electronicsmaker.com\/analog-devices-announces-new-impedance-potentiostat-analog-front-end-for-biological-chemical-sensing\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Analog Devices Announces New Impedance &amp; Potentiostat Analog Front End for Biological &amp; Chemical Sensing - Electronics Maker\" \/>\n<meta property=\"og:description\" content=\"BANGALORE, India, May 29 2019\u2013.\u00a0\u00a0\u0336\u00a0\u00a0Analog Devices, Inc.\u00a0announced today a new electrochemical &amp; impedance measurement front end that\u00a0enables\u00a0the next generation of vital sign monitoring devices and intelligent electrochemical sensors. The\u00a0AD5940\u00a0analog front end incorporates both potentiostat and electrochemical impedance spectroscopy (EIS) functionality on a single chip, allowing for sensor measurement in both time and frequency domains. 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