Analog Devices Low-Power 24-Bit Sigma-Delta Data Converter Sets New Standard in Power Consumption and Performance, Ideal for Portable Instruments.Business Editors/High-Tech Writers NORWOOD, Mass.--(BUSINESS WIRE)--March 10, 2003 Analog Devices Analog Devices (NYSE: ADI) is an American multinational producer of semiconductor devices. Analog specializes in ADC, DAC, MEMS, and DSP chips for consumer and industrial goods. Analog is presently designing circuits in the 65 nanometer to 3 µm process feature sizes range. Inc. (NYSE NYSE See: New York Stock Exchange : ADI), a global leader in high-performance semiconductors for signal processing See DSP. applications and the market share leader in data converters, today introduced a 24-bit sigma-delta analog-to-digital converter (ADC (1) See A/D converter. (2) (Apple Display Connector) A peripheral connector from Apple that combines digital video display, USB and power in one cable. ) with the industry's lowest power consumption and leading-edge accuracy. Consuming only 65 microamps, this new analog front-end outperforms its closest competitor with 25 percent lower power dissipation and six times the resolution. Available in a tiny MSOP-10 package and at a competitive price, it also includes an on-chip buffer and an internal clock generator A clock generator is a circuit that produces a timing signal (known as a clock signal and behaves as such) for use in synchronizing a circuit's operation. It can range from a simple symmetrical square wave to more complex arrangements. , making this the most integrated sigma-delta ADC on the market. Sigma-delta ADCs are ideal for portable instrumentation; sensor, temperature, and pressure measurement; and weigh scale applications. "As the cost of high-resolution sigma-delta converters continues to drop, the technology is becoming more accessible, and chip manufacturers are called upon to provide more options for designers of high-resolution measurement systems in which performance, space and power consumption are critical," said Mike Britchfield, product line director for sigma-delta converters, Analog Devices. "With this new device, Analog Devices raises the standard for noise performance and continues to push the envelope when it comes to power consumption." New Ultra Low-Power Sigma-Delta ADCs The new 24-bit sigma-delta ADC, the AD7791, also comes in a 16-bit version, the AD7790. Both accept differential inputs, which can be buffered or unbuffered; output data rates are software programmable. Parts without the buffer, and with a fixed 16.6 Hz data rate, are also available in 16- and 24-bit versions (AD7788/AD7789). All parts are low-power analog front-ends for low frequency measurement applications. Each consumes 65 microamps when operated with a 3 V supply and 75 microamps when operated with a 5 V supply (buffer disabled). More about the AD7791 Featuring rms noise of only 1.5 microvolts, the AD7791 operates from an internally generated clock, eliminating the need for a user-supplied clock source. Its output data rate is software programmable, allowing rates up to 120 Hz. At the default conversion rate of 16.6 Hz, the AD7791 provides simultaneous 50 Hz and 60 Hz rejection. The p-p resolution from the part varies with the programmed output data rate. The device operates from a single 3 V or 5 V power supply, and supply voltage monitoring is included. It can be used in single or continuous conversion mode. Pricing and Availability The new sigma-delta ADCs come in 10-lead MSOP MSOP Mini Small Outline Package MSOP Mini Series of Poker MSOP Minnesota Sex Offender Program MSOP Management Stock Option Plan MSOP Memphis School of Preaching (Memphis, TN) MSOP Minimum Sum-Of-Products packaging and are priced as follows in 1,000-piece quantities: 24-bit AD7791 - $3.83; 16-bit AD7790 - $2.95; 24-bit AD7789 - $2.95; 16-bit AD7788 - $1.99. Samples and evaluation boards are available now. For more information, please visit www.analog.com/AD7790/91 and www.analog.com/AD7788/89. About Analog Devices Analog Devices is a leading manufacturer of precision high-performance integrated circuits Integrated circuits Miniature electronic circuits produced within and upon a single semiconductor crystal, usually silicon. Integrated circuits range in complexity from simple logic circuits and amplifiers, about 1/20 in. (1. used in analog and digital signal processing See DSP. Digital Signal Processing - (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled). applications. The company is headquartered in Norwood, Massachusetts, and employs approximately 8,600 people worldwide. It has manufacturing facilities in Massachusetts, California, North Carolina North Carolina, state in the SE United States. It is bordered by the Atlantic Ocean (E), South Carolina and Georgia (S), Tennessee (W), and Virginia (N). Facts and Figures Area, 52,586 sq mi (136,198 sq km). Pop. , Ireland, the Philippines, Taiwan and the United Kingdom. Analog Devices' stock is listed on the New York Stock Exchange New York Stock Exchange (NYSE) World's largest marketplace for securities. The exchange began as an informal meeting of 24 men in 1792 on what is now Wall Street in New York City. and the company is included in the S&P 500 Index. |
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