ShareEvaluation of CMOS timer integrated circuits for cryogenic use.
Author(s) : HARUYAMA T., KIRSCHMAN R. K.
Type of article: Article
Summary
555 and "551" type CMOS (complementary metal oxide semiconductor) timer integrated circuits have been evaluated for cryogenic use as resistor-capacitor oscillators. First, the behaviour of 28 different integrated circuits was compared between room and liquid nitrogen temperatures, under a variety of operating conditions. The behaviour of 6 of these integrated circuits was then measured as a function of temperature over the range 80-320 K. All circuits operated reasonably well down to 80 K, with frequency variations within more or less 2% at about 3 kilohertz. Tests on 7 integrated circuits at liquid helium temperature showed that they were not suitable for use at this temperature.
Details
- Original title: Evaluation of CMOS timer integrated circuits for cryogenic use.
- Record ID : 1993-1863
- Languages: English
- Source: Cryogenics - vol. 31 - n. 12
- Publication date: 1991/12
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