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EDA (Circuits) Overview
Paul Hasler
Extent of Circuits (Analog/Digital)
Hearing aids
Cell Phones
Digital Cameras
Automotive
MEMs devices /
Circuits
Biomedical
Analog ~ 20% of IC market since 1970
“The Analog Renaissance is Here!”
--- Brian Halla CEO National Semiconductor
“Analog chips enable computers to interact with the physical world--to
see, listen, touch. . .the next ten years will see a shift in emphasis to analog
technologies. . . In the coming years, look for analog--not digital--chips to
attract the new talent and investment. . .”
--- Red Herring Magazine, February 2003
"DSP and high-performance analog are the engines . . . and we're only
at the beginning of where analog is going."
--- Templeton, incoming CEO of TI, February 2004
Range of Analog Products
(Just TI’s map)
Brief History of Integrated Circuits
(1960)
4004: First mP (1970)
Silicon Scaling
“Standard” digital CMOS
Course Directions in EDA
ECE 4420: Digital IC Design
ECE 4415: RF Engineering I
ECE 4418: RF Engineering II
ECE 4430: Analog IC Design
ECE 4360: RF Lab
ECE 6412: Analog
Circuits (IC)
ECE 6435: Analog
VLSI Circuits
ECE 6361: RF
Design Lab
ECE 6414: Analog
Systems (IC)
ECE 6420: Wireless
IC Design
ECE 4430: Analog IC Design
Analog--Digital Signal Processing
Real
world
(analog)
Gene’s Law and CADSP
A/D
Converter
DSP
Processor
Computer
(digital)
1W
ASP
IC
A/D
DSP
Processor
Computer
(digital)
Power / MMAC
Specialized A/D
Real
world
(analog)
10mW
Sensor Signals
DSP/mC
Programmable
Analog Power
Savings
0.1mW
CADSP = Cooperative Analog—Digital
Signal Processing
(P. Hasler and D. Anderson)
ASP IC
Gene's Law
DSP Power
CADSP Power
100W
>20 Year Leap
in Technology
1mW
10nW
1980
1990
2000
2010
Year
2020
2030
Gene’s Law = power efficiency
scaling for DSP mC
Power and Computation
Efficiency Critical for
Mobile Applications
Custom Analog ~ 10,000 more
efficient than Custom Digital
•Standard CMOS process
• Greater signal processing capability
without scaling IC process
Programmable Analog Circuits
Programmable Analog Structure:
 Core Innovation
Physical Layout
- Charge storage and control in signal path
- Combine to build computational engines
Cross-section
- Any standard CMOS process
Schematic
Implementation:
 Analog Parameter Storage
- CMOS offset correction, Yield enhancement
- Analog data storage
Example Functions
 Programmable Analog Functions
- Amplifier gain, Filter parameters
- Reconfigurable analog circuits
 Dynamic Analog Computation
- Matrix multiplication, Linear transforms
- Adaptive Analog Systems
m
mxn
n
Field Programmable Analog Array (FPAA)
• Configurable Analog Block (CAB)
–
–
–
–
Synthesizes analog functions
Fully programmable functions, not just selectable
More efficient than selectable
Base block for FPAA
FPAA (36 CAB, 150k Elements)