Scientists set new speed record for big data

Feb 14, 2014

(Phys.org) —IBM today announced that it has achieved a new technological advancement that will help improve Internet speeds to 200 - 400 Gigabits per second (Gb/s) at extremely low power.

The speed boost is based on a device that can be used to improve transferring Big Data between clouds and data centers four times faster than current . At this speed 160 Gigabytes, the equivalent of a two-hour, 4K ultra-high definition movie or 40,000 songs, could be downloaded in only a few seconds. The device was presented at the International Solid-State Circuits Conference (ISSCC) in San Francisco.

While this latest technology is only a lab prototype, a previous version of the design has been licensed to Semtech Corp., a leading supplier of analog and mixed-signal semiconductors. The company is using the technology to develop advanced communications platforms expected to be announced later this year.

The scientific paper is entitled, "A 90GS/s 8b 667mW 64× Interleaved SAR ADC in 32nm Digital SOI CMOS" by Lukas Kull, Thomas Toifl, Martin Schmatz, Pier Andrea Francese, Christian Menolfi, Matthias Braendli, Marcel Kossel, Thomas Morf, Toke Meyer Andersen, Yusuf Leblebici.

As Big Data and Internet traffic continues to grow exponentially, future networking standards have to support higher data rates. For example, in 1992, 100 Gigabyte of data was transferred per day, whereas today, traffic has grown to two Exabytes per day, a 20 million fold increase.

To support the increase in traffic, scientists at IBM Research and Ecole Polytechnique Fédérale de Lausanne (EPFL) have been developing ultra-fast and energy efficient analog-to-digital converter (ADC) technology to enable complex digital equalization across long-distance fiber channels.

Credit: IBM

An ADC converts analog signals to digital, approximating the right combination of zeros and ones to digitally represent the data so it can be stored on computers and analyzed for patterns and predictive outcomes.

For example, scientists will use hundreds of thousands of ADCs to convert the analog radio signals that originate from the Big Bang 13 billion years ago to digital. It's part of a collaboration called Dome between ASTRON, the Netherlands Institute for Radio Astronomy, DOME-South Africa and IBM to develop a fundamental IT roadmap for the Square Kilometer Array (SKA), an international project to build the world's largest and most sensitive radio telescope.

The radio data that the SKA collects from deep space is expected to produce 10 times the global internet traffic and the prototype ADC would be an ideal candidate to transport the signals fast and at very low power—a critical requirement considering the thousands of antennas which will be spread over 3,000 kilometers (1,900 miles).

"Our ADC supports IEEE standards for data communication and brings together speed and energy efficiency at 32 nanometers enabling us to start tackling the largest Big Data applications," said Dr. Martin Schmatz, Systems department manager at IBM Research. "With Semtech as our partner, we are bringing our previous generation of the ADC to market less than 12 months since it was first developed and tested."

Semtech signed a non-exclusive technology licensing agreement, including access to patented designs and technological know-how, with IBM to develop the technology for its own family of products ranging from optical and wireline communications to advanced radar systems.

"Through leveraging the IBM 32nm SOI process with its unique feature set, we are developing products that are well-suited for meeting the challenge presented by the next step in high performance communications systems such as 400 Gb/s Optical systems and Advanced Radar systems. We are also seeing an expanding range of applications in the existing radio frequency communications marketplace where high-speed digital logic is replacing functions that have been traditionally performed by less flexible analog circuitry," said Craig Hornbuckle, Chief Systems Architect, Semtech.

The 64 GS/s (giga-samples per second) chips for Semtech will be manufactured at IBM's 300mm fab in East Fishkill, New York in a 32 nanometer silicon-on-insulator CMOS process and has an area of 5 mm2. This core includes a wide tuning millimeter wave synthesizer enabling the core to tune from 42 to 68 GS/s per channel with a nominal jitter value of 45 femtoseconds root mean square. The full dual-channel 2x64 GS/s ADC core generates 128 billion analog-to-digital conversions per second, with a total power consumption of 2.1 Watts.

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User comments : 4

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EWH
4 / 5 (1) Feb 14, 2014
This has very little to do with internet speeds. It's much more important than that.

This essentially takes the heart of a $30,000 digital oscilloscope and puts it on a dollar or two worth of silicon. If these are produced in volume they could easily sell for less than $20 / qty.1. These will be used in automated test equipment for testing all sorts of high-frequency components. This testing is a major component of price, so it will bring down the price of all advanced electronic components while allowing tighter guaranteed specifications, which in turn allows using those components' capabilities more fully.
EWH
5 / 5 (1) Feb 14, 2014
Another advantage of this new analog to digital converter (ADC) is the potential ability to switch rapidly between sampling different channels, which is ordinarily a problem with SAR (successive approximation register) ADCs - it takes several cycles before the reading on the new channel can be trusted. SAR ADCs compensate by requiring far less circuitry to get a given level of precision (number of bits). Because the cycle time is so low in this ADC, for most applications waiting several cycles is not an issue. Even waiting 1024 cycles (likely an overestimate of the latency) allows switching channels up to 64M times a second.

These ADCs can also be used for greater than 8 bit precision, though at a lower sample rate. Each extra bit cuts the sample rate in half. This ADC then could do 8 channels of 96kHz 24-bit audio. (There are some complications, a little extra circuitry would help, but this is an approximation.)

These ADCs could therefore potentially be used in many applications.
cabhanlistis
not rated yet Feb 14, 2014
nvrmnd
baudrunner
not rated yet Feb 15, 2014
As always, the speed of your internet service is a function of the component with the lowest baud rate in the connection, which today belongs to your modem.