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Maxim integrates drivers/receivers in octal ultrasound transceiver

Maxim integrates drivers/receivers in octal ultrasound transceiver

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By eeNews Europe



Ultrasound designers can now reduce form factor and improve image quality and reliability with the MAX2082 octal ultrasound transceiver. Maxim has used a multi-chip package with separate dice for the high-sensitivity receive channels, and the control circuitry; and for the high-voltage transducer drivers. MAX2082 integrates 8 channels of 3-level 200V pulsers and T/R switches, an octal ADC, octal LNA, and octal VGA, CW mixers, anti-aliasing filters, and coupling capacitors into a small package requiring less than 10 square inches. This is 40% of the space required for conventional solutions, Maxim says, easing design of portable systems. Traditional designs include over nine components in the T/R switch alone for each of up to 128 channels, so the MAX2082 displaces thousands of discrete parts. Power-supply noise and switching noise are all minimised in the MAX2082 for superior image quality, and saving the designer from complex signal layouts. Features include;

– Higher image quality and performance: improved system sensitivity and image quality through an ultra-low noise figure (2.8 dB at RIN = RS = 200Ω) and a high-dynamic-range receiver (76 dBFS SNR at fIN = 5 MHz and 2 MHz bandwidth)

– Higher integration and reliability: combines five separate blocks into one IC, replacing thousands of discrete components in a standard system

– Lower power: consumes 30% less power than conventional architecture

In a 10 mm x 26 mm BGA package, and for operation over 0°C to +70°C temperature range, pricing starts at $ 70.00 (1000).

Maxim notes that separate low-voltage and high-voltage dice are used in this configuration, but that the company will evaluate whether a single process with a high-voltage [process] module could allow the fabrication of a monolithic part at a later time.

Maxim Integrated; www.maximintegrated.com

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