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32-channel ultrasound AFE simplifies portable designs

Posted: 20 Apr 2010 ?? ?Print Version ?Bookmark and Share

Keywords:ultrasound? analog front-end? receiver?

Samplify Systems Inc. has launched 32-channel ultrasound analog front-end (AFE) receiver modules in an ultrasmall, small-outline dual-in-line configuration.

By leveraging the company's ultrasound front-end reference design around its SAM1600 family of compressing ADCs, Samplify simplifies design of systems ranging from portable, hand-carried ultrasound up to high-channel count, full-featured consoles. The design provides low power consumption of 100mW per receive channel while delivering up to 6dB higher dynamic range than competing AFE solutions.

The new modules are highly-integrated ultrasound receivers implementing the entire signal chain for 32 channels in a high-density form factor. The modules can be mounted in two configurations: 46mm x 67.6mm in flat-mounting, and connector. The modules are available in two SKUs: the first includes a non-CWD (Continuous Wave Doppler) receive chain including the transmit/receive switch, LNA, variable gain amplifier, anti-alias filter and the ADC; the second also includes the CWD analog beamforming data path with built in mixers, LO distribution, and summed I/Q current outputs. The availability of the two SKUs of the module allows OEMs to build-to-order for CWD and non-CWD systems, easing management of finished goods inventory.

"By providing this solution as a complete module, we can accelerate time to market for our ultrasound OEM customers, enabling them to focus on their core differentiating technologies," said Daniel Kreindler, director of marketing for medical and imaging at Samplify. "By modularizing the AFE, we enable OEMs to have a single design which can offer either value-added continuous-wave Doppler or low cost black and white and color mode options, while simplifying inventory management."

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