Enhanced linearity, low switching perturbation resistor strings

Details Enhanced linearity, low switching perturbation resistor strings Enhanced linearity, low switching perturbation resistor strings

2005-06-28

2005-06-28

Easthom, Karl D. (Department: 2832)

Electrical resistors

Incased, embedded, or housed

Plural resistors

C338S320000, C338S295000

Reexamination Certificate

active

06911896

ABSTRACT:
A resistor string that may have two resistor matrices laid out back-to-back with selected or all nominally equipotential nodes of the two matrices being interconnected. In certain applications, the matrix may have switch connections at each node, with the second matrix being an inactive matrix that may have the same number or different number, typically fewer resistors than the first matrix. In another embodiment, separate matrices may be used, and the inactive matrix may be smaller and have fewer resistors of a lower value to minimize the effect of gradients across the substrate. Preferred matrices and node connection switch configurations, as well as various embodiments of these and other features of the invention are disclosed.

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