Octal ultrasound transceiver saves power, space

The MAX2082 octal ultrasound transceiver is said to take 40% less board space and 30% less power than a conventional architecture. It integrates eight channels of 3-level 200 V pulsers and T/R switches, an octal A/D converter, octal LNA, octal VGA, CW mixers, anti-aliasing filters, and coupling capacitors.

The 10 x 26 mm BGA packaged device operates over 0º to 70ºC and its eight channels have over-voltage protection and active return-to-zero clamps. The transmitters also feature embedded floating power supplies. The receiver, with T/R switch, LNA, input coupling and feedback caps, VGA, AAF, A/D, and digital HPF achieves an 2.8 dB noise figure at RS = RIN = 200 Ω, while taking just 135 mW per channel at 50 Ms/s. The receiver has 75.7 dBFS SNR at 5 MHz with a 2 MHz bandwidth. Pricing starts at $70.00 ea/1,000 with delivery in 1^st half of 2014.