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Product category: Analogue and Mixed Signal ICs
News Release from: Analog Devices | Subject: AD9259
Edited by the Electronicstalk Editorial Team on 01 June 2006

Quad 14bit ADC claims a first

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Analog Devices has released the industry's first high-speed 14bit data convertor with four analogue-to-digital conversion channels.

Analog Devices is extending its family of high-speed multichannel analogue-to-digital convertors (ADCs) with the introduction of the industry's first high-speed 14bit data convertor with four analogue-to-digital conversion channels (quad ADC) The AD9259 is designed for high-end ultrasound and imaging systems, which consist of up to 512 channels and require high dynamic range in order to show the slightest differences in echo magnitudes

In addition to LVDS outputs, which simplify board layout and enable more data conversion paths to be routed within a given printed circuit board (PCB) area, the new quad ADC clocks at 50Msample/s, offers a 3dB improvement in signal-to-noise ratio (SNR) over 12bit multichannel ADCs available today, and reduces power consumption by nearly one third compared with that of competitive devices.

Analog Devices also is announcing the AD9287 8bit quad ADC, extending ADI's family of high-speed quad ADCs from 8 to 14bit.

The AD9287 features sample rates up to 100Msample/s and consumes 126mW per channel.

From handheld medical imaging solutions that use 8 or 10bit ADCs to rolling ultrasound units that require 12 or 14bit ADCs, ADI provides medical imaging designers with an extensive line of low-power, high-SNR convertor solutions.

"The dynamic range, resolution and low-power-per-channel innovations embodied in the AD9259 solve many of the challenges facing systems designers as medical imaging technology evolves", said Kevin Kattmann, Product Line Director, High Speed Signal Processing, Analog Devices.

"In ultrasound systems that feature up to 512 channels, the AD9259 not only enables precise imaging, but also saves board space through serial output routing and can save up to 12W of power over previously available solutions".

The AD9259 operates at 50Msample/s and achieves 73dB SNR to Nyquist, making it a compelling solution for multichannel imaging applications that require precise imaging capabilities.

As the industry's only high-speed 14bit quad ADC, the AD9259 is half the size of competing 10 and 12bit quad ADCs and up to 40% smaller than competing 14bit dual ADCs, allowing designers to add more channels to their given systems.

Operating at 1.8V, the low-power AD9259 consumes only 95mW per channel, 20% lower than other 12bit quad ADCs and more than 50% lower than available 14bit dual ADCs.

Like other members of ADI's high-speed ADC family, the AD9259 features a programmable clock, data alignment, and digital test pattern generation using a serial port interface (SPI) that improves designers' ability to control and synchronise output data.

The AD9259, when paired with the AD8334 quad VGA (variable gain amplifier) forms an optimised, low-noise analogue front end (AFE) that increases dynamic range and image quality.

The AD9259 and AD9287 are available in 7 x 7mm, 48-lead LFCSP (lead-frame chip-scale) packages.

Both devices are sampling now, with full production quantities available in June 2006.

The AD9259 and AD9287 are priced at $72.25 and $19.00, respectively, in 1000-piece quantities.

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