Title :
Programmable switched-current floating-gate cells
Author :
Corbishley, Phil ; Rodriguez-Villegas, Esther
Author_Institution :
Dept. Electr. & Electron. Eng., Imperial Coll., London, UK
Abstract :
The concept of programmable switched-current floating-gate (PSIFG) cells is presented. A floating-gate current mirror provides programmability while a switched current element offers discrete time operation within the analogue domain. The concept is demonstrated by a circuit that implements a second-order FIR filter with arbitrary, programmable coefficients. For this system, simulated results show a power consumption of 1 μW with a 1V supply voltage.
Keywords :
CMOS integrated circuits; FIR filters; current mirrors; integrated circuit design; mixed analogue-digital integrated circuits; programmable filters; sample and hold circuits; switched current circuits; 1 V; 1 muW; CMOS process; analogue domain; discrete time operation; filter design; floating-gate current mirror; power consumption; programmability; programmable coefficients; programmable switched-current floating-gate cells; sample and hold element; second-order FIR filter; Circuit simulation; Educational institutions; Energy consumption; Finite impulse response filter; Mirrors; Switching circuits; Transconductance; Transfer functions; Tuned circuits; Voltage;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464858
