DocumentCode :
2828280
Title :
A current integrator for BIST of mixed-signal ICs
Author :
Tabatabaei, Sassan ; Ivanov, André
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
fYear :
1999
fDate :
1999
Firstpage :
311
Lastpage :
318
Abstract :
A novel built-in current integrator (BICI) is proposed for measuring the average supply current (IDD) of embedded circuit blocks. Such a circuit can be used both as a current signature generator and power monitor. The BICI uses only small capacitors (total 72 pF), a simple comparator, 7 switches, and a counter to perform integration over a long time (1 ms) window and digitize IDD. The BICI generates a digital signature proportional to IDD and occupies a small area which make it suitable for BIST applications on mixed-signal ICs. The circuit has been implemented using a standard 0.5 μ CMOS technology. Circuit performance trade-offs are analyzed and optimization guidelines provided. Simulation results are also included
Keywords :
CMOS integrated circuits; built-in self test; circuit optimisation; integrating circuits; mixed analogue-digital integrated circuits; 0.5 micron; 72 pF; BIST; CMOS technology; average supply current; built-in current integrator; circuit performance trade-off; comparator; current signature generator; digital signature; embedded circuit blocks; mixed-signal ICs; optimization guidelines; power monitor; Built-in self-test; CMOS technology; Capacitors; Counting circuits; Current measurement; Current supplies; Integrated circuit measurements; Monitoring; Power generation; Switches;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
VLSI Test Symposium, 1999. Proceedings. 17th IEEE
Conference_Location :
Dana Point, CA
ISSN :
1093-0167
Print_ISBN :
0-7695-0146-X
Type :
conf
DOI :
10.1109/VTEST.1999.766681
Filename :
766681
Link To Document :
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