Current sensor on the base of permanent pre-chargeable amplifier

Author

Varshavsky, Victor ; Tsukisaka, Masayuki

Author_Institution

Comput. Logical Design Lab., Aizu Univ., Fukushima, Japan

fYear

1999

fDate

4-6 Mar 1999

Firstpage

210

Lastpage

213

Abstract

The sensitivity and delay of the amplifier are the key problems in the performance of current sensors (CS). For large devices which consist of several cells, for example 32 bit, the amplifier must react to 10-20 mV. The previous type of highly sensitive amplifier which is based on cascade and reference voltage [dill] can react to this level of voltage. But this model is not stable in respect to technological and parametric variation. In this paper we suggest triple cascade inverters with feedback by an unsymmetrical pass transistor which amplifies 1 mV without reference voltage. Monte Carlo SPICE simulation shows the stability of this model for parametric variation. We prepare the schematic of CS which includes a control unit with shunt transistors and evaluate the delay

Keywords

CMOS logic circuits; Monte Carlo methods; SPICE; asynchronous circuits; circuit simulation; electric current measurement; integrated circuit measurement; logic gates; logic simulation; transients; 10 to 20 mV; 32 bit; Monte Carlo SPICE simulation; current sensors; parametric variation; permanent pre-chargeable amplifier; shunt transistors; triple cascade inverters; unsymmetrical pass transistor; CMOS logic circuits; Capacitance; Content addressable storage; Delay; Immune system; Inverters; Logic devices; Pulse amplifiers; Semiconductor device modeling; Threshold voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI, 1999. Proceedings. Ninth Great Lakes Symposium on

Conference_Location

Ypsilanti, MI

ISSN

1066-1395

Print_ISBN

0-7695-0104-4

Type

conf

DOI

10.1109/GLSV.1999.757412

Filename

757412