Title :
Synthesis of optimal current copiers for low-power/low-voltage switched-current circuits
Author :
Wang, Jin-Sheng ; Huang, Renyuan ; Wey, Chin-Long
Author_Institution :
Dept. of Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI, USA
Abstract :
This paper deals with the noise issue of current copiers. It introduces a structure function for a current copier to estimate its SNR (signal-to-noise ratio). Different copiers have different structure functions. A current copier with a higher structure function value has the larger SNR. This paper also defines the figure-of-merit (FOM), a performance measure, for various current copiers in terms of SNR, power dissipation, settling time, and the storage capacitance. Several current copiers are compared with their FOMs. Based on the desired FOM, this synthesis process provides the designers with the optimum transistor size and storage capacitor for the selected current copier
Keywords :
CMOS analogue integrated circuits; circuit optimisation; integrated circuit design; integrated circuit noise; low-power electronics; switched current circuits; SNR; figure-of-merit; low-voltage switched-current circuits; optimal current copiers; optimum transistor size; power dissipation; settling time; signal-to-noise ratio; storage capacitance; structure function; 1f noise; Circuit noise; Circuit synthesis; Low voltage; Low-frequency noise; Noise figure; Signal to noise ratio; Switching circuits; Transconductance; Working environment noise;
Conference_Titel :
Circuits and Systems, 1998. Proceedings. 1998 Midwest Symposium on
Conference_Location :
Notre Dame, IN
Print_ISBN :
0-8186-8914-5
DOI :
10.1109/MWSCAS.1998.759473
