Ultra low power analog-to-digital converter draws only 400nW
August 16, 2012 // Julien Happich
Researchers from A*STAR IME have developed an analog-to-digital converter that uses only 400 nW, the lowest power consumption reported to date amongst today's standard processing technology, claims the research center.
The novel converter design decreases the total power consumption of an implantable 100-channel neural recording microsystem by more than 20%, reducing the patient’s exposure to electromagnetic radiation in the brain tissue when powered wirelessly during the data acquisition of complex brain activity for medical purposes. The converter can also prolong the battery life of other wearable and implantable medical devices and wireless sensor nodes. The ability to extend the battery life and reduce the electromagnetic radiation exposure from implantable devices will significantly reduce the patient’s cost, risk and invasiveness of the surgical procedures involved. Neuroprosthetics, which serve to restore motor functions in paralysed patients due to impaired nervous systems, can potentially benefit from IME’s low power ADC technology.
Elaborating on the research breakthrough, Dr Cheong Jia Hao, the IME scientist who conceptualised and designed the converter integrated circuits (ICs), said, “The ADC employs a tri-level switching scheme to achieve an elegant and simplified digital logic design. By reducing the capacitor charging voltage and the number of complex arithmetic steps in each data conversion cycle, we can boost the energy efficiency to just 19.5 fJ per conversion step, which contributes to significant total power savings without sacrificing data resolution and affecting other hardware features.” The converter is fabricated with 0.18-um CMOS processes, a mature standard processing technology for large volume production.
The ultra low power converter could become one of the key elements in emerging wireless sensor networks, sensor clouds, and sensor fusion for various important applications such as environmental monitoring, industrial monitoring and control, green buildings, smart transportation, and e-health.
Visit Agency for Science, Technology and Research (A*STAR) at www.ime.a-star.edu.sgAll news
How will deep learning change SoCs?
March 31, 2015
Deep Learning is already changing the way computers see, hear and identify objects in the real world.
Electronics printed in France
Sony licenses bonding technology from Ziptronix
Delphi selected to build Audiís autopilot computer
Medical chip market on 12% CAGR
Philips offloads LED lighting components unit for USD2.8bn
March 31, 2015
Philips has agreed to sell an 80.1 percent stake in the company's lighting components division for $2.8 billion to Go Scale ...
Imec and sureCore partners on 28nm SRAM
Analysts cool on Intel/Altera combo
A new candidate for ultra-thin optoelectronics: DNA-peptide
- High-Speed, Real-Time Recording Systems Handbook
- New Linear Regulators Solve Old Problems
- Intelligent Over Temperature Protection for LED Lighting Applications
- Intel helps to Turbocharge Infotainment Systems Designs
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas BŲhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, DecaWave is offering EETimes Europe's readers the chance to win two TREK1000 kits to evaluate its Ultra-Wideband (UWB) indoor location and communication DW1000 chip in different real-time location system topologies.
Worth €947, the kit allow designers to prove a concept within hours and have a prototype ready in days. Based on the two-way ranging scheme, the kit lets you test...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.