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A programmable current mirror for analog trimming using single poly floating-gate devices in standard CMOS technology

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3 Author(s)
Jackson, S.A. ; Dept. of Electr. & Comput. Eng., Mississippi State Univ., MS, USA ; Killens, J.C. ; Blalock, B.J.

This paper describes a programmable current mirror comprised of single-poly floating-gate devices. By programming the threshold voltage of the floating-gate devices, a current mirror's input-output current mismatch can be trimmed at a desired current level. This programmability allows accurate drain current matching to be achieved without using large gate area devices. A prototype of the programmable current mirror fabricated in a 0.5-micron digital CMOS technology achieves 0.04% input-output current matching

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Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:48 ,  Issue: 1 )