ISSCC 1999 - Analog

• Summary
• Daytime Paper Sessions
• Evening Panel Discussion
• Tutorial

Subcommittee Chair: Behzad Razavi, University of California, Los Angeles

HIGHLIGHTS

• Low-Power Low-Voltage Over-Sampling Converters [MP3]
  
• High-Precision DACs [TA8]
  
• Fast ADCs [WA18]
  
• Microwave CMOS VCOs [WP23]

• 1.5V, 1mW Over-Sampling Converter [3.1]
  
• 14-bit 100MSample/s CMOS DACs [8.1, 8.2]
  
• 6-Bit, 500MSample/s CMOS ADCs [18.5, 18.6]
  
• 2.5GHz BiPolar Equalizer [23.3]
  
• >5GHz CMOS VCOs [23.6, 23.7, 23.8]

• Wireless Transceivers [3.1, 3.6, 3.7, 23.6, 23.7, 23.8]
  
• Low-Power Low-Voltage Portable Systems [3.1, 18.5]
  
• Disk-Drive Electronics [18.5, 18.6]

• High-Performance Low-Cost Mobile Communications and Computing
  
• High-Performance Disk Storage
  
• High-Resolution Graphics
  
• High-Definition Television

• Managing Innovation: An Oxymoron? [TE5]

• High-Speed CMOS ADCs [T3]

Session: MP3

OVERSAMPLING MODULATORS

Chair: John Fattaruso, Texas Instruments, Dallas, TX.
Associate Chair: Ken Martin, University of Toronto, Toronto, Canada.

DRIVERS

• Wireless receivers
  
• Imaging applications
  
• Portable audio processing
  
• Higher resolution and speed
  
• Lower Power and voltage

HIGHLIGHTS

• Low-power conversion: 1mW at 1.5V, and 1.8mW at 2.5V [3.1, 3.2]
  
• Innovative architecture achieving 13 bits for 8MHz signal frequencies using CCD circuits in standard 1.2µm CMOS [3.3]
  
• Combining IF mixers and A/D conversion at IF frequencies up to 400MHz [3.4, 3.6, 3.7]
  
• First realization of second-order-bandpass dynamic element matching for multi-bit D/A converters [3.5]

Session: TA8

ANALOG TECHNIQUES I

Chair: Tsutomu Wakimoto, NTT Laboratories, Kanagawa, Japan
Associate Chair: Paul Hurst, University of California, Davis, CA

DRIVERS

• High-precision instrumentation
  
• High-quality low-cost audio
  
• High-efficiency DC/DC conversion
  
• Low supply voltage

HIGHLIGHTS

• 14-bit matching in a CMOS DAC without trimming [8.1, 8.2]
  
• Fast-sample-rate DACs ( >=100MSamples/s) [8.1, 8.2]
  
• Supply voltage of 3.0V or lower [8.1, 8.6, 8.7]
  
• Low-distortion (<-80dB) output stages for digital-to-analog converters [8.2, 8.3]
  
• Consumer-audio DACs using oversampling with up to 120dB dynamic range [8.4, 8.5]
  
• Audio DAC with low-distortion (<0.1% THD) power output to drive 1W into an 8-ohm speaker [8.5]
  
• DC/DC converter with 92% efficiency [8.6]
  
• Low-voltage (2V) 3-stage op amp drives large capacitive loads [8.7]

Session: WA18

NYQUIST ADCs

Chair: Klaas Bult, Broadcom Corporation, Irvine, CA
Associate Chair: Ken Poulton, Hewlett Packard, Palo Alto, CA

DRIVERS

• Digital Imaging: Scanners, Video Cameras, and TV sets
  
• Broadband Communications: Cable Modems, and Set-Top Boxes
  
• High-Speed LANs
  
• Disk Drives

HIGHLIGHTS

• Two New Background-Self-Calibration Techniques [18.1, 18.6]
  
  • Analog Queuing
    
  • Calibrating one comparator at a time

• Two 75 mW or less Video ADCs [18.3, 18.4]
  
  • Cascaded folding in BiCMOS
    
  • Subranging in CMOS

• Two 6-bit 500MSample/s CMOS ADCs [18.5, 18.6]

Session: WP23

ANALOG TECHNIQUES II

Chair: Geert De Veirman, Silicon Systems, Inc., Tustin, CA
Associate Chair: Cristian Enz, Rockwell Semiconductor Systems, Newport Beach, CA

DRIVERS

• Personal Digital Cellular Handsets
  
• Disk-Drive Electronics
  
• HDTV
  
• Low-cost Instrumentation
  
• Wireless CMOS Transceivers

HIGHLIGHTS

• Higher Levels of Integration [23.1, 23.2, 23.3, 23.4]
  
• Higher Accuracy [23.1, 23.4]
  
• Wider Adaptation Range [23.2, 23.3]
  
• 13mW Data-Acquisition Systems [23.4]
  
• Sub-3V CMOS [23.1, 23.2, 23.4, 23.5, 23.6, 23.7, 23.8]
  
• High-Frequency Filters and Equalizers [23.2, 23.3, 23.5]
  
• High-Frequency (>5GHz) CMOS VCOs [23.6, 23.7, 23.8]

Panel Session: TE5

MANAGING INNOVATION: AN OXYMORON?

OBJECTIVE

• To explore the difficulties inherent in allowing time and capital for innovation in a fast-moving industry

APPLICATIONS

• Any industry that must both push the performance envelope and shorten the time-to-market can benefit from managed innovation

CHALLENGES

• Innovation requires time and relaxed minds, but time-to-market and cost prohibit both
  
• Finding an improved solution to a problem that already has other solutions may entail too many risks

CONTROVERSIES

• Where do we need innovation?
  
• How far should we go in exploring new solutions?
  
• How do we balance innovation for higher performance with cost and time-to-market?

Tutorial: T3

OVERVIEW

• 50 to 400 MHz ADCs for Embedded Applications
  
• Flash and Folding Architectures
  
• Comparator and Preamp Design with Averaging
  
• Interpolating ADCs

TUTORIAL SPEAKER BIOGRAPHY

Klaas Bult, Broadcom Corp., Irvine, CA, received the MSEE (1986) and PhD (1988) from the University of Twente, Enschede, The Netherlands. In 1988, he joined Phillips Research Labs, working on analog CMOS circuits for consumer applications in audio and video. In 1993, he became part-time professor at the University of Twente. In 1994, he became an Associate Professor at UCLA. In 1996, he joined Broadcom as Director of Analog and RF Microelectronics Technology. His work is focused on high-speed CMOS analog and mixed-signal processing.