Monday, February 24, 2003

Analog Devices Announces 14-Bit, Low-Power Analog-to-Digital Converter, Expanding High-Speed ADC Offerings in Chip-Scale Packages

- ADI introduces industry's first 3-V, 14-Bit, 80-MSPS ADC with sub-500 mW power consumption for wireless infrastructure applications.

NORWOOD, Mass.--Feb. 24, 2003-- Analog Devices Inc. , a global leader in high-performance semiconductors for signal processing applications and the market share leader in data converters, today introduced the industry's first 3 V, 14-bit, 80-MSPS analog-to-digital converter (ADC) with breakthrough sub-500 mW power consumption. This low-power ADC augments ADI's family of high-speed ADCs available in chip-scale packages (CSP), including pin-compatible 10- and 12-bit versions that were announced in September (www.analog.com/CSPpressrelease.) ADI's CSPs deliver the same levels of performance in packages that are 87 percent smaller than previously offered packages.

"Wireless infrastructure manufacturers and carriers are looking to ease design challenges and cut cost as they drive the adoption of next generation wireless standards," said Kevin Kattmann, product line director for High-Speed Converters, Analog Devices. "The low power and small size of our ADCs in chip-scale packaging allow wireless engineers to design more cost effective radios while maintaining current levels of performance."

The new chip, the AD9245, is suitable for pico-cell and micro-cell designs with multiple base stations on one tower, or locations where low power consumption is advantageous, such as distributed base stations for "hot spots" or in buildings where medium network capacity is needed. It also enables migration from single-carrier to multi-carrier platforms, allowing designers to keep costs down while maintaining 14-bit performance.

The AD9245 uses a multistage differential pipelined architecture with output error correction logic to provide 14-bit accuracy at 80-MSPS data rates, and guarantees no missing codes over the full operating temperature range. It operates with a signal-to-noise ratio (SNR) of 72 dB and spurious-free dynamic range (SFDR) of 85 dBc. It is pin compatible with the AD9235 12-bit, 20-/40-/65-MSPS ADC, AD9236 12-bit, 80-MSPS ADC, and AD9215 10-bit, 65-/80-/105-MSPS ADC. The sample-and-hold amplifier (SHA) features a proprietary input sampling network that can be configured for single-ended or differential operation, thus eliminating the expense of a single-ended to differential conversion stage in a single-ended system.


Other significant benefits include:

High-performance: A clock duty-cycle stabilizer allows the AD9245 to maintain performance over a wide range of clock pulse widths. This is important to portable applications in which the clock source may be less than ideal.

Advanced pin-compatibility: Fully compatible with ADI's entire family of 32-pin LF-CSP packaged ADCs, the AD9245 gives designers a simple upward migration path, allowing a single analog front-end signal chain to be used in various products, with performance that can be differentiated based on the chosen ADC.

Increased IF sampling capability: The AD9245 supports input frequencies as high as 100 MHz, helping to eliminate a down-conversion stage and reduce the number of components needed to complete the design. In addition, components such as mixers and filters become unnecessary, ultimately lowering total system cost.

Multi-channel application advantages: Power sensitive multi-channel applications such as ultrasound and high-end medical imaging also benefit from the AD9245's sub-500 mW power consumption.


Pricing and Availability

The AD9245 is packaged in a 32-pin CSP and is priced at $38.00 per unit in 1,000-piece quantities. Samples and evaluation boards are available now. Full production is scheduled for April 2003. For more information, please visit www.analog.com/AD9245.


About Analog Devices

Analog Devices is a leading manufacturer of precision high-performance integrated circuits used in analog and digital signal processing applications. The company is headquartered in Norwood, Massachusetts, and employs approximately 8,600 people worldwide. It has manufacturing facilities in Massachusetts, California, North Carolina, Ireland, the Philippines, Taiwan and the United Kingdom. Analog Devices' stock is listed on the New York Stock Exchange and the company is included in the S&P 500 Index.


Source: Analog Devices Inc.