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Bandgap Design
 Software
1.
Circuit Sage's bandgap.mcd, (and pdf). An extensive Mathcad 2001i routine
for designing integrated bandgap circuits.
2.
Download
Mathcad Explorer Free, A free viewier for Mathcad versions
8 and lower. You can edit, but not save.
3. Mathcad
Tutorial, a good tutorial by Sidney Young and Theresa Julia
Zielinski.
4. Valery Ochkov's Book on Mathcad
usage.
5. Information on Mathcad from Mathsoft.
 Articles
on Bandgaps
1. R. J. Widlar, IEEE J. Solid-State Circuits,
SC-6, 2-7, 1971.
2. Bob Pease, "The design of Band-Gap Reference Circuits:
Trials and Tribulations," IEEE Proceedings of the 1990 Bipolar
Circuit and Technology Meeting, September 17-18th 1990. Also in http://www.national.com/rap/Application/0,1570,24,00.html.
3. Low
Voltage Low-Power CMOS Bandgap References, by Timothy Low
4. Choppered
CMOS Bandgap Reference, A good article, which talks about
bandgap variance and noise.
5. Bandgap
Tutorial, a basic tutorial by Fikret Dulger.
6. A
Curvature Corrected CMOS Bandgap Reference, ESSIRC2000, A simple
technique for curvature correcting a bandgap. A nice tutorial
on this architecture, and a copy
of this architecture.
7. Low
Voltage Bandgap, an ICECS00 paper on a low voltage bandgap.
8. Linear
Tech's Voltage Reference Information, a good collection of
practical voltage reference and bandgap design notes.
9. National
Micropower Voltage Reference, an ancient (1976) article on JFET
voltage references.
10. Holberg
Bandgap Reference Notes, a quick overview of bandgaps.
11. National
Semiconductor Bandgap Notes, 1971! oldie but goodie.
12. References
Lecture, discusses different bandgap references.
13. Effect
of Ground Drop on Bandgaps, by Jim Daly: a case for
routing bandgap currents and Kelvin connections.
14. Info
on Bandgap References, Basic bandgap info.
15. Beta
Multiplier Self-Referencing (also called a VDSsat/R
reference) and Self-Biased
Referencing by Ben Blalock.
16. The
making of a bandgap reference, an interesting tutorial on how to
design a bipolar bandgap.
17. Maxim's voltage
reference application notes.
18. Error
Sources in 1st order bandgap references. by Vishal Gupta,
19. Analog
Devices' Voltage Reference Information, by Walt Jung. A
older paper with coverage different types of voltage references.
20. Colorado State article on voltage
references.
21. Bandgap
circuit design notes from URI.
22. Statistical
analysis of a bandgap reference from Zkom. Too expensive
for what a simple Monte Carlo can do.
23. NEC
Research Index. Many papers on bandgap design.
Extremely useful.
24. ESSCIRC
Website: Many good papers on bandgap design. Very useful.
25. Tordoff's bandgap
page.
26. Some bandgap
class notes from McGill.
27. Some bandgap
notes from Georgia Tech.
 Bandgap Patents
1. Free USPTO
(Patent and Trademark Office), free full access to all
patents, but the search engine isn't that good. First use
Delphion to search and get front page, and USPTO to get other pages
for details.
2. Delphion's Patent Search Engine,
View front page for free, but must pay for full view. Better
search engine than USPTO
1. 5952873; 5,910,726;
6,046,577;
6,078,183; 4,839,535;
6,023,189; 5,245,273; 4,896,094; 6,133,719
 Books
1. Gabriel Rincon-Mora: From
Diodes to Precision High-Order Bandgap References.
2. Gray and Meyer: Analysis
and Design of Integrated Circuits,
3. Huijsing et al: Analog
Circuit Design
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