Title :
High-frequency CMOS continuous-time filters
Author :
Khorramabadi, Haideh ; Gray, Paul R.
fDate :
12/1/1984 12:00:00 AM
Abstract :
Fully integrated, high-frequency continuous-time filters can be realized in MOS technology using a frequency-locking approach to stabilize the time constants. A simple, fully differential integrator, optimized for phase-error cancellation, forms the basic element; a complete filter consists of intercoupled integrators. The center frequency of the filter is locked to an external reference frequency by a phase-locked loop. A prototype sixth-order bandpass filter with a center frequency of 500 kHz dissipates 55 mW and occupies 4 mm/SUP 2/ in a 6-μm CMOS technology.
Keywords :
Active filters; Band-pass filters; CMOS integrated circuits; Integrating circuits; active filters; band-pass filters; integrating circuits; Band pass filters; CMOS technology; Circuits; Filtering; Frequency; Low pass filters; Phase locked loops; Prototypes; TV receivers; Voltage-controlled oscillators;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1984.1052249
