Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Parallel controlled paths
Patent
1996-02-15
1997-09-30
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Parallel controlled paths
327403, 323315, H03K 1762
Patent
active
056729936
ABSTRACT:
A current mirror circuit for mirroring current in CMOS integrated circuit technology includes a current mirror arrangement formed of first and second P-channel MOS transistors (MP32,MP33), a variable input current source (I.sub.CS), a first source follower transistor (MN34), a second source follower transistor (MP35), a current-sinking transistor (MN31), and a load circuit 212. The load circuit is formed of a load transistor (MN36) and a load resistor (R1). In an alternate embodiment, the load circuit is formed of a single load resistor. As a result, the amount of current injected into the first P-channel MOS transistor (MP32) is more precisely mirrored into the second P-channel MOS transistor (MP33).
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Advanced Micro Devices , Inc.
Callahan Timothy P.
Chin Davis
Kim Jung Ho
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