Low-power receiver ICs advance ultrasound system design
November 08, 2010 | Paul Buckley | 222901743
Analog Devices, Inc., has launched the fourth generation of its octal (eight-channel) ultrasound receivers with the introduction of two new ICs that reduce system size, complexity, and power consumption for high-end, mid-range, and portable ultrasound systems. The need for smaller, faster, lower-power ultrasound equipment continues to grow as hospitals, medical clinics, and medical emergency units increasingly rely on more sophisticated ultrasound equipment for providing diagnostic imaging.
Page 1 of 2The new AD9278 and AD9279 receiver chips each integrate ADI's data conversion technology for low noise TGC (time-gain-control) mode performance while providing high dynamic range I/Q demodulators that reduce the power and area for implementation of CW (continuous wave) Doppler processing.
The new octal ultrasound receivers provide the highest available output-referred large-signal SNR - up to 67 dB - enabling improved sensitivity in diagnostic ultrasound systems while reducing board space up to 40 percent.
The AD9278 octal ultrasound receiver is designed for portable ultrasound systems while the AD9279 octal ultrasound receiver is suitable for high-end and mid-range systems. The devices are pin- and package-compatible with each other and allow designers to use a common PCB layout that can be leveraged across multiple ultrasound platforms to save development time and cost.
Products in Analog Devices' octal ultrasound receiver portfolio include the AD9271, which, when unveiled in April 2007, was the first device to integrate a complete octal ultrasound receiver on a single chip, and is used today in ultrasound equipment throughout the world. Other octal ultrasound receivers include the AD9272 for high-and mid-range cart-based ultrasound equipment, AD9273 for portable ultrasound systems, and the AD9276 and AD9277 that enable high-quality CW Doppler processing.
The new AD9278 and AD9279 octal ultrasound receivers feature a variable gain range of 45 dB, a fully differential signal path, an active input preamplifier termination, a maximum gain of up to 52 dB, and an ADC (analog-to-digital converter) with a conversion rate of up to 80 MSPS.
Each device is optimised for dynamic performance and low-power operation in applications where a small package size is critical.
In CW mode, the AD9278 features ultra-low power consumption of 25 mW per channel, while the AD9279 offers low power consumption of 50 mW per channel.
Please login to post your comment - click here
- PMIC for RF agile-radio applications and FPGAs
- Silicon Labs pays $1.5 million for Touchstone
- AFEs integrate up to eight 24-bit ADCs for multiple load power monitoring
- Is envelope tracking innovation smartphone battery-life game-changer?
- Envelope tracking for RF transceivers from 2 to 8 W
- Wireless transceiver circuit enables low-power medical body area networks
- Opinion: Powering wearable devices - watch out for safety first
- High voltage processes added to Europractice MPW schedule
- How much power from MEMS windmills?
- Dual gate, ultra-low power CMOS logic devices extend battery life
- Low-power 14-bit A/D converters for multi-channel data acquisition
- 600-W AC/DC medical enclosed type power supply offers energy-saving benefits
- Startup offers chip-scale solar energy harvester
- IR sensor startup preps smartphone bid
- Smart activity tracker integrates ultra-low power MEMS accelerometer for longer battery life
MOST POPULAR NEWS
- Newswatch: Mediatek v Qualcomm – let the duelling commence
- Newswatch: Tesla sketches out roadmap for the future?
- Tesla targets battery innovation to reduce EV costs
- Simple PS voltage splitters based on audio amplifiers - Part 2
- What technologies to watch for in 2014? – Part 2
- Pomegranate inspires silicon anode breakthrough for lithium-ion batteries
- How to extend a power supply for droop compensation
- Power Tip 68: Pick the right turns ratio for a fly-buck converter
- Novel anode breakthrough allows fast charging of next-generation batteries
- Power line communication implementation for DC applications
- Simple PS voltage splitters based on audio amplifiers
- IBC solar cell achieves efficiency of 24.4 percent
- Measure small impedances with Rogowski current probes
- Fast or quick, just be better than slow
- Photovoltaic development deals targets 22.4 percent cell efficiencies
Performance monitoring solution helps provide intelligent control of high power systems A performance monitoring solution designed to enable companies to monitor high power IGBT module systems in locomotive, wind turbine, High Voltage DC and industrial drive applications was unveiled this ...
- ON Semiconductor Hybrid Power Solutions
- High Efficiency, 150V 100mA Synchronous Step-Down Regulator
- High-voltage DC distribution is key to increased system efficiency and renewable-energy opportunities
- Using Next Generation Power Firmware to Simplify Energy Star Compliant Designs
- 3mm Ã— 3mm QFN IC Directly Monitors 0V to 80V Supplies
- Adaptive Cell Converter Topology Enables Constant Efficiency in PFC Applications
- Ultra-compact and innovative - new Schaffner IEC inlet filter series