Front-end ultrasound IC offers breakthrough performance
The MAX2078 front-end ultrasound IC with integrated mixer-based CWD (continuous-wave Doppler) beamformer is offered as the industry’s lowest-power octal solution of its kind. The device achieves a full receiver noise figure of only 2.4 dB with a 200-Ω input impedance termination, while consuming less than 65 mW per channel.
The device provides a cascaded output-referred noise of 23 nV/√Hz, a factor of two times less noise than the closest competing chipset. Housed in a 64 TQFP package, it combines an active-input-termination LNA, VGA, antialias filter, and I/Q mixer CWD beamformer.
The device boasts a large-signal SNR of 140 dBc/Hz at 1 kHz from a 5-MHz clutter signal. In addition, the MAX2078 provides the necessary close-in, large-signal dynamic range, and noise performance to detect Doppler shifts ranging from 100 kHz to less than 1 kHz at optimal sensitivity.
A MAX2077 with the same functionality and specifications as the MAX2078, but without the CWD beamformer, is available in both pin-compatible lead-free 64 TQFP and 56 TQFN packages. (Ea/1,000: MAX2078, from $47.50; MAX2077, from $34.30 available now.)
Maxim Integrated Products , Sunnyvale , CA
Customer Service 800-998-8800
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