Texas Instruments has integrated digital I/Q demodulation and decimation into an analog front end to reduce FPGA processing requirements in ultrasound systems as well as ultrasonic applications, such as sonar and non-destructive testing.
The AFE5809 also integrates a continuous wave Doppler processor for blood flow velocity measurement on-chip, thereby reducing the bill of materials in medical ultrasound equipment, according to TI.
It features the industry’s lowest noise of 0.75 nV/rtHz and the industry’s lowest power consumption of 158 mW/channel, according to the company.
Each 14-bit, 65 MSPS analog-to-digital converter in the AFE5809 provides a 77-dBFS signal-to-noise ratio.
The AFE5809EVM evaluation module is available now for $299. A TINA-TI SPICE model is also available.
The AFE5809 is available now in a 15-mm by 9-mm, 135-pin BGA package for a suggested retail price of $87 in quantities of 1,000.
All AFE58xx devices are complemented on the transmit side by TI’s LM96530/TX810 T/R switch, LM96550 pulser and LM96570 transmit beamformer.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.