Analog Devices has extended its family of high-speed, multi-channel analog-to-digital converters (ADCs) with the introduction of the high-speed, 14-bit data converter with four analog-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 to show the slightest differences in echo magnitudes. In addition to LVDS outputs, the new quad ADC clocks at 50 Mega samples per second (Msps).

The AD9259 achieves 73 dB SNR to Nyquist, making it a compelling solution for multi-channel imaging applications that require precise imaging capabilities. Operating at 1.8 V, the AD9259 consumes 95 mW per channel. 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 synchronize output data.

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

The AD9259 is available in 7-mm x 7-mm, 48-lead LFCSP (lead-frame chip-scale packages). Samples are available now, with full production quantities available in June 2006. The AD9259 is priced at $72.25 in 1000-piece quantities.

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