{"id":19717,"date":"2021-06-15T17:13:00","date_gmt":"2021-06-15T09:13:00","guid":{"rendered":"https:\/\/ljdevice.com.tw\/get-signal-texas-instruments-unveils-industry-leading-breakthrough-high-speed-data-converters\/"},"modified":"2021-06-15T17:23:38","modified_gmt":"2021-06-15T09:23:38","slug":"get-signal-texas-instruments-unveils-industry-leading-breakthrough-high-speed-data-converters","status":"publish","type":"post","link":"https:\/\/ljdevice.com.tw\/es\/get-signal-texas-instruments-unveils-industry-leading-breakthrough-high-speed-data-converters\/","title":{"rendered":"Get the Signal: Texas Instruments Unveils Industry-Leading Breakthrough in High-Speed Data Converters"},"content":{"rendered":"

BY\u00a0DAVID SEELEY<\/a>\u00a0\u2022\u00a0JUN 14, 2021<\/span><\/p>\n

\"\"<\/p>\n

Like speed limits on a highway, signal latency can slow down innovation\u2014and put things like our electricity grid in catastrophic danger. But last week Texas Instruments (TI) accelerated what\u2019s possible with a new family of SAR ADCs\u2014a breakthrough in high-speed data converters with up to 80% lower latency than competitive devices at similar speeds.<\/strong><\/p>\n

You probably didn\u2019t gossip about SAR ADCs at your last lunch date\u2014unless you\u2019re an electrical engineer\u2014but they\u2019re vitally important to keeping industries flowing smoothly, efficiently, and safely.<\/p>\n

Designed for a lightning strike\u2014and more<\/h3>\n

What makes SAR ADCs so vital? First, because ADCs are almost everywhere.<\/p>\n

\u201cADCs are found in most every piece of electronic equipment and are often used to help a system measure voltage and current,\u201d Matt Hann, TI\u2019s product line manager for high-speed data converters, told Dallas Innovates. \u201cIf an overvoltage or overcurrent event occurs, the ADC can send a signal to shut down the system to prevent damage.\u201d<\/p>\n

Hann told us this is especially important in a system like grid infrastructure, where lightning strikes can cause powerful grid system failures.\u00a0TI\u2019s new family of SAR ADCs are all about beating those lightning strikes before they can wreak havoc in systems\u2014along with all kinds of benefits that come from increasing speed and lowering latency, or time delay.<\/p>\n

That\u2019s huge, because SAR ADCs ( successive-approximation register analog-to-digital converters) are key in enabling high-precision data acquisition in industrial designs.<\/p>\n

Best in noise performance and power use<\/h3>\n

TI\u2019s new ADC3660 family is the first of its kind to provide both excellent noise performance and low power consumption at their sampling rate, Hann says. Competing ADCs are on the market could reach similar speeds, but only at the expense of noise performance and higher power usage.<\/p>\n

\u201cThere\u2019s a growing need for increased signal detection capability in industrial applications,\u201d Hann said. \u201cYou need a a marriage of high precision and high sampling speed to improve the safety, reliability, and efficiency of the system.\u201d<\/p>\n

\u201cIf your system is responding to a sensor that has very low signal levels, for example, having higher precision and lower noise measurement capability will help detect these low-level signals so that a response can be performed early to keep the system safe and reliable,\u201d he added.<\/p>\n

Target applications: From grids to fish<\/h3>\n

Thermal imaging cameras, plasma cutters, grid infrastructure systems, test and measurement equipment are all target applications for these ADCs, including many others\u2014even catching a fish<\/a>.<\/p>\n

\n

\"Texas<\/p>\n

[Image: Video still\/Texas Instruments]<\/p>\n<\/div>\n

Fishermen often use \u201cfish finders,\u201d sonar that pings off a fish. Using digital signal processing, the fish\u2019s location and depth can be computed and visualized on a display. The sonar\u2019s signal-to-noise ratio is what determines how accurately the reflected \u201cpings\u201d can be digitized. TI\u2019s new\u00a0ADC3660 family increases this accuracy with sample rates up to 125 megasamples per second and up to 18 bits of resolution, increasing object sensitivity and detection.<\/p>\n

In other words, ADC3660 helps you find your fish better than ever before. And it can improve performance in a similar way across a wide array of industries and applications.<\/p>\n

Target customers: design engineers<\/h3>\n

TI\u2019s target customers are design engineers\u2014electrical engineers at companies that design industrial equipment.\u00a0The engineers can use them to\u00a0design \u201chigh-speed digital control loops with the highest dynamic range and lowest latency while reducing power consumption by as much as 65%,\u201d TI said in a statement.<\/p>\n

The ADC3660 family includes\u00a0eight SAR<\/span>\u00a0ADCs in 14-, 16-, and 18-bit resolution at sampling speeds ranging from 10 to 125 MSPS, helping designers improve signal resolution, extend battery life, and strengthen system protection.<\/p>\n

In a high-speed digital control loop, the ADC acts in a complex system to respond to fast changes in voltage or current to help prevent costly damage to critical components in power-management systems, the statement said. As the number of data-intensive tasks in industrial systems increases, quick decisions by systems become even more important to prevent system failures. That requires higher precision at faster speeds, which the ADC3660 family addresses.<\/p>\n

No need for performance \u2018tradeoff\u2019<\/h3>\n

Until now, design engineers had to choose between excellent noise performance and low power consumption\u2014a decision that was especially tough for battery-operated devices that require precise data acquisition. The ADC3660 family eliminates this trade-off, TI says. For example, the ADC3683\u2014the industry\u2019s fastest 18-bit ADC at 65 MSPS\u2014improves noise performance in narrowband-frequency devices like portable defense radios, delivering a\u00a0signal-to-noise ratio of 84.2 dB while maintaining low power consumption of 94 mW per channel.<\/p>\n

Reducing complexity and cost<\/h3>\n

The ADC3660 family\u2019s high sampling speeds and integrated features help designers do something else important: reduce the number of components in their systems.<\/p>\n

For example, the ADC3683\u2014which samples four times faster than the closest competing 18-bit device at twice the channel density\u2014enables oversampling, a technique that pushes harmonics further from the desired signal, the TI statement said. This allows designers to reduce antialiasing filter complexity and system component count by as much as 75%.<\/p>\n

Design complexity can also be reduced thanks to on-chip decimation options that can help remove unwanted noise and harmonics in a system. These options and a complementary CMOS interface can also help lower costs, by\u00a0enabling designers to use these ADCs with Arm-based processors or digital signal processors instead of field-programmable gate arrays, TI says.<\/p>\n

Processor resources can be reduced, too, thanks to an integrated digital downconverter with a complex numerically controlled oscillator.<\/p>\n

Fuente:Get the Signal: Texas Instruments Unveils Industry-Leading Breakthrough in High-Speed Data Converters \u00bb Dallas Innovates<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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