DocumentCode
2771705
Title
Interface electronics for a CMOS electrothermal frequency-locked-loop
Author
Zhang, C. ; Makinwa, K.A.A.
Author_Institution
Delft Univ. of Technol., Delft
fYear
2007
fDate
11-13 Sept. 2007
Firstpage
292
Lastpage
295
Abstract
A new architecture for a CMOS electrothermal frequency-locked-loop (FLL) is presented. Unlike previous work, it does not require the use of off-chip capacitors. The FLL´s output frequency is determined by the well-defined thermal diffusivity of bulk silicon. Measurements show that the spread in the FLL´s output frequency corresponds to an untrimmed inaccuracy of less than plusmn0.7degC (3sigma) over the temperature range from -40degC to 100degC.
Keywords
CMOS integrated circuits; frequency locked loops; temperature sensors; CMOS electrothermal frequency-locked-loop; interface electronics; off-chip capacitors; temperature -40 C to 100 C; thermal diffusivity; Bipolar transistors; Capacitors; Choppers; Electrothermal effects; Frequency locked loops; Preamplifiers; Silicon; Temperature sensors; Thermal sensors; Voltage-controlled oscillators;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid State Circuits Conference, 2007. ESSCIRC 2007. 33rd European
Conference_Location
Munich
ISSN
1930-8833
Print_ISBN
978-1-4244-1125-2
Type
conf
DOI
10.1109/ESSCIRC.2007.4430301
Filename
4430301
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