Title :
A two-terminal IC temperature transducer
Author :
Timko, Michael P.
Abstract :
A bipolar monolithic IC temperature transducer with an operating temperature range of -125/spl deg/C to +200/spl deg/C has been designed, fabricated, and tested. The two-terminal device, which is fabricated using laser trimmed thin-film-on-silicon technology, is a calibrated temperature dependent current source with an average output impedence of 10 M/spl Omega/ over the 3.5-V to 30-V range of input voltage. Overall absolute accuracies of /spl plusmn/0.5/spl deg/C from -75/spl deg/C to +150/spl deg/C have been achieved on a scale of 1 /spl mu/A/K under optimum operating conditions.
Keywords :
Bipolar integrated circuits; Linear integrated circuits; Temperature measurement; Transducers; bipolar integrated circuits; linear integrated circuits; temperature measurement; transducers; Calibration; Current density; Impedance; Integrated circuit testing; Monolithic integrated circuits; Temperature dependence; Temperature distribution; Temperature sensors; Transducers; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1976.1050818
