IEEE S.F. Bay Area Council e-GRID's
BayAreaTech

Technology & Networking in Silicon Valley & the SF Bay Area: Upcoming Meetings, Courses and Conferences

June 25, 2009

Mtg: Low-Voltage Oversampling Analog-to-Digital Conversion

by @ 8:11 am. Filed under ALL, Communications, Electronics Design, Semiconductors
 

MONDAY September 21, 2009
SCV Circuits and Systems with Communications and Signal Processing Chapters
Speaker: Dr. Bruce A. Wooley, EE Deptartment, Stanford University
Time: Networking/Pizza at 6:30 PM, Presentation at 7:00 PM
Cost: $2 donation for food
Place: National Semiconductor, Building E, Conference Room, 2900 Semiconductor Dr, Santa Clara
RSVP: not required
Web: ewh.ieee.org/r6/scv/cas

Through the exchange of resolution in time for that in amplitude, oversampling methods are now widely used to enable the realization of high-resolution analog-to-digital converters in scaled CMOS VLSI technologies.? So-called oversampling modulators combine coarse quantization at sampling rates well above the Nyquist rate with feedback and subsequent digital signal processing to avoid the need for precision analog circuits.? Such modulators were originally conceived in the mid-twentieth century in the form of delta modulators, which digitize the rate of change of a signal, rather than the signal itself.? However, noise-shaping modulators that directly encode the signal proved to be a more robust approach and have subsequently come into widespread use. In particular, cascades of inherently stable sigma-delta (or, equivalently, delta-sigma) modulators are an efficient means of extending the dynamic range of oversampling converters that are largely immune to both analog circuit imperfections and fundamental stability concerns.? This presentation begins with an overview of both architectural and circuit issues associated with the design of noise-shaping modulators, and then presents examples of some approaches to their implementation under increasingly severe constraints on power dissipation and supply voltage.

Comments are closed.

[IEEE S.F. Bay Area Council - www.e-grid.net] [powered by WordPress .]

SF Bay Area Council

Categories

  • ALL (4,595)
  • Antennas & Propagation (4)
  • BioEngineering (665)
  • Blogroll (33)
  • Circuits (11)
  • Communications (1,856)
  • Computers/Software (1,750)
  • Consumer Electronics (97)
  • Control Systems (19)
  • Electrical/Power (1,270)
  • Electronics Design (2,771)
  • Employment (4)
  • Employment opportunities (6)
  • Engineering Mgmt (1,807)
  • Green energy (42)
  • History (4)
  • Industrial Applications (80)
  • Information Theory (11)
  • Instrument and Measurement (1)
  • Magnetics (24)
  • Microwave (8)
  • NanoEngineering (870)
  • Optics/Displays (968)
  • Photonics (25)
  • PhotoVoltaics (4)
  • Product Safety (23)
  • Reliability (34)
  • Robotics and Automation (15)
  • Semiconductors (1,836)
  • Signal Processing (132)
  • Vehicular Technology (10)
  • Women in Engineering (7)
  • Young Professionals (2)
  •  

    Support our advertisers:

    Visit our
    GRID MARKETPLACE

    Enabling Javascript allows us to show you upcoming conferences in this column.

    For the Firefox browser, select Tools/Options/Content and select "Enable Javascript".

    If you are using Microsoft Internet Explorer you may need to click on the yellow bar above and select 'Allow Blocked Content'. You must then click 'Yes' on the following security warning.

    archives:

    December 2017
    S M T W T F S
    « Nov    
     12
    3456789
    10111213141516
    17181920212223
    24252627282930
    31  

    View in Google Calendar

    search blog:


    SUBSCRIBE: Get the e-GRID twice a month by email - upcoming IEEE SF Bay Area meetings, conferences.

    RSS Feed Subscribe to our RSS Feed.

    PUBLICIZE your event to IEEE's membership.


    general links:

    22 queries. 0.690 seconds