Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1996-07-18
1998-10-06
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327198, 323315, G05F 326
Patent
active
058182942
ABSTRACT:
A circuit is presented which can produce a temperature insensitive, constant current value. The constant current source comprises transistor pairs which mirror a temperature dependent current into a node along with another temperature dependent current. The node thereby receives two temperature dependent currents, wherein one is inversely dependent to that of the other. More specifically, one current increases as temperature increases, whereas the other current decreases as temperature increases. The two currents may thereby be construed to offset one another such that the output of a common node produces a current output which does not change with either an increase or decrease in temperature imputted upon the current source component.
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Holt, Charles a., Electronic Circuits Digital and Analog, John Wiley & Sons, 1990, pp. 483-484.
Advanced Micro Devices , Inc.
Callahan Timothy P.
Daffer Kevin L.
Englund Terry L.
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