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Analog Devices Variable Gain Amplifiers Provide Unprecedented Levels of Performance and Integration at RF and IF Frequencies

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Analog Devices, Inc.
1 Technology Way, P.O. Box 9106
Norwood, MA, 02062-9106
USA



Press release date: September 27, 2010

Highly integrated SiGe BiCMOS and GaAs RF/IF variable gain control amplifiers combine multiple functions in single chip, achieving significant BOM savings and breakthrough radio performance.

NORWOOD, Mass. - Analog Devices, Inc. (NYSE: ADI), a global leader in high-performance semiconductors for signal-processing applications and RF integrated circuits, today introduced a series of highly integrated RF/IF variable gain amplifiers (VGAs). ADI's new ADL5201, ADL5202, ADL5240 and ADL5243 variable gain amplifiers offer breakthrough levels of integration-combining up to four discrete RF/IF blocks into a single device. With this unprecedented level of integration, radio system manufacturers can realize a significant reduction in component count and a major savings in BOM (bill of materials) cost. In addition to unsurpassed integration, the new VGAs offer industry-leading performance, linearity and flexibility that make them well-suited for demanding applications, such as cellular base stations, industrial/instrumentation and defense equipment.

"These new RF / IF variable gain amplifiers further expand ADI's commitment to offering best-in-class levels of integration and performance for both RF and IF applications," said Peter Real, vice president, Linear and RF products, Analog Devices. "Both product families provide the user with flexibility to select their preferred parallel or serial formats, and offer fine 0.5dB digital gain steps. This approach simplifies and eases system design, decreases footprint and enables designers of equipment such as next generation base stations to reduce component count, board area, supply lines and cost."

About the ADL5201 and ADL5202 IF Variable Gain Amplifiers

The ADL5201 and its dual version, the ADL5202, are digitally controlled, IF variable gain amplifiers designed to support high IF sampling receiver designs that require precise gain control, high IP3 and a low noise figure for new broadband radio designs. The new VGAs combine highest dynamic range with lowest distortion and noise figures for IF frequencies up to 400 MHz. The ADL5201 and ADL5202 are ideally suited for driving high-speed, next generation ADCs such as ADI's AD9268. The new VGAs incorporate proprietary distortion cancellation techniques that enable them to achieve the industry's highest linearity at more than 47 dBm output IP3 and noise figure of 6 dB. The ADL5201 and ADL5202 provide gain control range of 31.5 dB with 0.5 dB resolution and are capable of supporting serial and parallel interface modes. The ADL5201 and ADL5202 were developed on an advanced SiGe BiCMOS process which enables the reduction in component count, power and supply voltages.

About the ADL5240 and ADL5243 IF/RF VGAs

Operating in the 100 MHz to 4000 MHz frequency range, the ADL5240 and ADL5243 RF/IF digitally controlled VGAs offer unsurpassed gain control performance and accuracy. Designed with GaAs technology, the ADL5240 VGA combines a DSA (digital step attenuator) and a gain block into a single IC, while the ADL5243 combines a DSA, a gain block, and a broadband W driver amplifier in a single IC, without any sacrifice in performance. Either the amplifier or the DSA can be first in the signal chain, maximizing system flexibility by allowing the VGA to be used in multiple places throughout a design. The DSA in each VGA offers a wide gain control range of 31.5 dB in 0.5 dB steps, and accommodates serial and parallel interface modes, while the gain block in each VGA offers a very high linearity of greater than 40 dBm and noise figure of 2.9 at 900 MHz. The ADL5243's W driver offers industry- leading linearity performance of 42.0 dBm with an impressive 25.7 dBm P1dB at 2.14 GHz.

Pricing, Availability and Complementary Products
 Part Number 	  	  	  	  	Package 	  	  	  	  	Pricing in 1,000-unit Quantities 	  	  	  	  	Availability ADL5201 	  	  	  	  	4 mm  4 mm  24-lead LFCSP 	  	  	  	  	$7.21 	  	  	  	  	Sampling now; production release scheduled for winter ADL5202 	  	  	  	  	6 mm  6 mm  40-lead LFCSP 	  	  	  	  	$10.41 	  	  	  	  	Sampling now; production release scheduled for winter  ADL5240 	  	  	  	  	5 mm  5 mm  32-lead LFCSP 	  	  	  	  	$9.68 	  	  	  	  	Sampling now; production release scheduled for winter  ADL5243 	  	  	  	  	5 mm  5 mm  32-lead LFCSP 	  	  	  	  	$13.98 	  	  	  	  	Sampling now; production release scheduled for winter  


The new VGAs are well-suited for use with ADI's leading mixers, modulators, and ADCs including the company's ADL537x and ADRF670x modulators; ADL535x, ADL580x and ADRF660x mixers; as well as the AD9268 and AD9265 families of analog-to-digital converters.

ADI's RF IC Portfolio Covers Entire RF Signal Chain

Using a unique combination of design skills, system understanding and process technologies, Analog Devices offers the broadest portfolio of RF ICs covering the entire RF signal chain from industry-leading high-performance discrete RF function blocks to highly integrated multi-functional single-chip RF solutions. ADI's RF portfolio includes TruPwr(TM) RMS power detectors and logarithmic amplifiers; PLL and DDS synthesizers; RF prescalers; VGAs; ADC drivers, gain blocks, LNAs and other RF amplifiers; RF mixers; direct conversion modulator and demodulator products; integrated transceivers, transmitters and receivers and more. These products are supported by a wide range of free design tools, evaluation boards and other design resources to ease the development of RF systems. For more information, visit: http://www.analog.com/rf.

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. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker "ADI" and is included in the S&P 500 Index.

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

Source: Analog Devices, Inc.

Contacts: Analog Devices, Inc. Colleen Cronin, 781-937-1622 Colleen.cronin@analog.com
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