Static current testing apparatus and method for current steering

Details Static current testing apparatus and method for current steering Static current testing apparatus and method for current steering

1993-10-20

1995-11-21

Westin, Edward P.

Electronic digital logic circuitry

With test facilitating feature

326115, 327543, 324527, H03K 1900, H03K 19094

Patent

active

054690765

ABSTRACT:
A static current testing method for single-ended or differential logic circuits having a static bias current in normal operation. The static current testing method includes switching a first bias node between a first bias voltage, in a normal operational mode, and a first shut-off voltage, in a first static current testing phase, and measuring the current supplied to the logic circuit in the testing phase. For differential circuits, the static current testing method further includes an additional step of switching a second bias node between the second bias voltage in the normal operational mode and the second shut-off voltage in a second static current testing phase. A bias switching means is used to switch between the normal bias voltage and the testing voltage. A cell switching means is coupled to a diode-connected transistor for forcing the circuit output low and for isolating the diode-connected transistor from the output.

REFERENCES:
patent: 5149992 (1992-09-01), Allstot et al.
patent: 5159212 (1992-10-01), Beaufils et al.
patent: 5189316 (1993-02-01), Murakami et al.
patent: 5245230 (1993-09-01), Ohri et al.
patent: 5250854 (1993-10-01), Lien
patent: 5254882 (1993-10-01), Eyck
patent: 5309399 (1994-05-01), Murotani

Affiliated with

Also associated with

Rating

Static current testing apparatus and method for current steering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Static current testing apparatus and method for current steering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Static current testing apparatus and method for current steering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1140089