Title :
New approach for high order-high frequency analogue micropower filter design
Author :
Ngarmnil, J. ; Toumazou, C.
Author_Institution :
Fac. of Eng, Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
A novel design approach for high frequency analogue micropower filters employing weakly inverted MOSFETs is presented. By vertically connecting integrators instead of the classical horizontal cascade, filter topologies can be realised with extremely low power, and high frequency performance. To support the concepts, a 60 nW, 100 kHz biquad low-pass filter is designed with 1.8 V supply voltage. Also, a 112 nW, 100 kHz fourth-order Chebyshev coupled-biquad low-pass filter is also designed with 2 V supply voltage. Simulation results using a 0.8 μm CMOS process confirm the design
Keywords :
CMOS analogue integrated circuits; Chebyshev filters; active filters; biquadratic filters; integrated circuit design; linear network synthesis; low-pass filters; 0.8 micron; 1.8 to 2 V; 100 kHz; 60 to 112 nW; CMOS process; biquad low-pass filter; filter topologies; fourth-order Chebyshev filter; high frequency analogue filters; high order HF filter design; micropower filter design; vertically connected integrators; weakly inverted MOSFETs; Capacitors; Circuits; Design engineering; Energy consumption; Frequency; Low pass filters; Low voltage; MOSFETs; Power engineering and energy; Virtual reality;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.608589
