A current integrator for BIST of mixed-signal ICs

被引：1

作者：

Tabatabaei, S ^{[1
]}

Ivanov, A ^{[1
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

来源：

17TH IEEE VLSI TEST SYMPOSIUM, PROCEEDINGS | 1999年

关键词：

D O I：

10.1109/VTEST.1999.766681

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A novel built-in current integrator (BICI) is proposed for measuring the average supply current (<(I-DD)over bar>) 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 <(I-DD)over bar>. The BICI generates a digital signature proportional to <(I-DD)over bar> 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 mu CMOS technology. Circuit performance trade-offs are analyzed and optimization guidelines provided. Simulation results are also included.

引用

页码：311 / 318

页数：4

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