SYS-CON MEDIA Authors: Peter Silva, Liz McMillan, Yeshim Deniz, Elizabeth White, Pat Romanski

News Feed Item

Highest Accuracy Isolated Sigma-Delta Modulator Increases Efficiency of Motor Drives and Power Inverters

Analog Devices, Inc. (NASDAQ: ADI) introduced today the industry’s highest accuracy isolated sigma-delta modulator for precision current and voltage measurement in DC/AC power conversion applications. The AD7403 isolated sigma-delta modulator achieves an 81-dB signal-to-noise and distortion ratio (SINAD) (min) @ 78 KSPS over a -40C° to +125C° temperature range, which is 11 dB higher than competing devices. The higher SINAD enables more accurate current and voltage measurement which improves the performance of motor drives by reducing torque ripple on the motor shaft. The higher SINAD also increases the power transfer efficiency in DC/AC power inverter applications, such as motor drives, solar and wind inverters.

Learn more about ADI’s motor and power control solutions:
http://motorcontrol.analog.com/en/segment/mc.html

AD7403 Sigma-Delta Modulator Integrates ADI’s iCoupler® Digital Isolation Technology

The AD7403 isolated sigma-delta modulator integrates ADI’s iCoupler® digital isolation technology, creating a single-chip solution for measuring the voltage across a shunt resistor by converting an analog signal into a 1-bit data stream that can be clocked at up to 20 MHz. The increased isolation working voltage (1250 V peak) allows designers to replace less accurate, more costly Hall Effect sensors in higher DC-bus voltage power conversion and motor drive applications.

The higher performance of the isolated sigma-delta modulator enables the use of a smaller shunt resistor, which reduces thermal loss across the shunt while retaining measurement accuracy.

AD7403 Isolated Sigma-Delta Modulator Key Features

  • 5-MHz to 20-MHz external clock input rate
  • 16 bits, no missing codes
  • Typical offset drift: 1.5 μV/°C
  • On-board digital isolator
  • On-board reference
  • True bipolar analog input range: ±320 mV
  • High common-mode transient immunity: >25 kV/μs

Pricing and Availability

Product       Volume Availability       Price Each per 10,000       Package
 

AD7403

Now $2.95 16-lead, wide body SOIC

(8.3mm creepage and clearance)

The AD7403 modulator is well suited to work with other ADI products designed for motor control and power conversion systems, including the ADSP-CM40x mixed-signal control processor, ADuM6000 isolated, 5-kV, DC/DC converter and the ADP2441 36-V, 1-A synchronous step-down DC/DC regulator.

About Analog Devices

Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices is included in the S&P 500 Index. http://www.analog.com

iCoupler is a registered trademark and EngineerZone is a trademark of Analog Devices, Inc. All other trademarks are the property of their respective owners.

Follow ADI on Twitter at http://www.twitter.com/ADI_News

To subscribe to Analog Dialogue, ADI’s monthly technical journal, visit: http://www.analog.com/library/analogDialogue/

More Stories By Business Wire

Copyright © 2009 Business Wire. All rights reserved. Republication or redistribution of Business Wire content is expressly prohibited without the prior written consent of Business Wire. Business Wire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

Latest Stories
DevOps Summit, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with 17th Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world. The widespread success of cloud computing is driving the DevOps revolution in enterprise IT. Now as never before, development teams must communicate and collaborate in a dynamic, 24/7/365 environment. There is no time to wait for long developmen...
The security devil is always in the details of the attack: the ones you've endured, the ones you prepare yourself to fend off, and the ones that, you fear, will catch you completely unaware and defenseless. The Internet of Things (IoT) is nothing if not an endless proliferation of details. It's the vision of a world in which continuous Internet connectivity and addressability is embedded into a growing range of human artifacts, into the natural world, and even into our smartphones, appliances, a...
There are 182 billion emails sent every day, generating a lot of data about how recipients and ISPs respond. Many marketers take a more-is-better approach to stats, preferring to have the ability to slice and dice their email lists based numerous arbitrary stats. However, fundamentally what really matters is whether or not sending an email to a particular recipient will generate value. Data Scientists can design high-level insights such as engagement prediction models and content clusters that a...
The WebRTC Summit 2015 New York, to be held June 9-11, 2015, at the Javits Center in New York, NY, announces that its Call for Papers is open. Topics include all aspects of improving IT delivery by eliminating waste through automated business models leveraging cloud technologies. WebRTC Summit is co-located with 16th International Cloud Expo, @ThingsExpo, Big Data Expo, and DevOps Summit.
ScriptRock has been included in the list of "Cool Vendors" in the "Cool Vendors in DevOps 2015" report by Gartner, Inc.* ScriptRock provides visibility into the configuration state of an organization's IT environments, enabling the continuous delivery of mission critical services. For enterprises where downtime is not an option, ScriptRock's system-wide overwatch offers the assurance that misconfigurations and anomalies are caught before they affect the business. By satisfying this fundamental ...
The Internet of Things is not new. Historically, smart businesses have used its basic concept of leveraging data to drive better decision making and have capitalized on those insights to realize additional revenue opportunities. So, what has changed to make the Internet of Things one of the hottest topics in tech? In his session at @ThingsExpo, Chris Gray, Director, Embedded and Internet of Things, discussed the underlying factors that are driving the economics of intelligent systems. Discover ...
SYS-CON Events announced today the IoT Bootcamp – Jumpstart Your IoT Strategy, being held June 9–10, 2015, in conjunction with 16th Cloud Expo and Internet of @ThingsExpo at the Javits Center in New York City. This is your chance to jumpstart your IoT strategy. Combined with real-world scenarios and use cases, the IoT Bootcamp is not just based on presentations but includes hands-on demos and walkthroughs. We will introduce you to a variety of Do-It-Yourself IoT platforms including Arduino, Ras...
Scott Jenson leads a project called The Physical Web within the Chrome team at Google. Project members are working to take the scalability and openness of the web and use it to talk to the exponentially exploding range of smart devices. Nearly every company today working on the IoT comes up with the same basic solution: use my server and you'll be fine. But if we really believe there will be trillions of these devices, that just can't scale. We need a system that is open a scalable and by using ...
17th Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterprises a...
SYS-CON Media announced today that @WebRTCSummit Blog, the largest WebRTC resource in the world, has been launched. @WebRTCSummit Blog offers top articles, news stories, and blog posts from the world's well-known experts and guarantees better exposure for its authors than any other publication. @WebRTCSummit Blog can be bookmarked ▸ Here @WebRTCSummit conference site can be bookmarked ▸ Here
Database apps on mobile devices shouldn't stop working when there's limited or no network connectivity. In his session at 16th Cloud Expo, Bradley Holt, a Developer Advocate for IBM Cloudant, will discuss how to bring data stored in a cloud database to the edge of the network (and back again), whenever an Internet connection is available. He will demonstrate techniques for replicating cloud databases with mobile devices in order to build offline-enabled mobile apps that can provide a better,...
SYS-CON Events announced today that Secure Infrastructure & Services will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Secure Infrastructure & Services (SIAS) is a managed services provider of cloud computing solutions for the IBM Power Systems market. The company...
In his session at WebRTC Summit, Peter Dunkley, Technical Director at Acision, will look at creating interactive communications via the web by adding messaging, file transfer, and group communication (group chat and audio/video conferencing) into the web experience. He will also discuss potential applications of this technology in areas including B2B, B2C, P2P, and gaming. Peter Dunkley is Technical Director at Acision. He graduated from The University of Edinburgh in 2000 with a BSc (Hons) in ...
The cloud has transformed how we think about software quality. Instead of preventing failures, we must focus on automatic recovery from failure. In other words, resilience trumps traditional quality measures. Continuous delivery models further squeeze traditional notions of quality. Remember the venerable project management Iron Triangle? Among time, scope, and cost, you can only fix two or quality will suffer. Only in today's DevOps world, continuous testing, integration, and deployment upend...
Cloud and Big Data present unique dilemmas: embracing the benefits of these new technologies while maintaining the security of your organization's assets. When an outside party owns, controls and manages your infrastructure and computational resources, how can you be assured that sensitive data remains private and secure? How do you best protect data in mixed use cloud and big data infrastructure sets? Can you still satisfy the full range of reporting, compliance and regulatory requirements? In...