A continuous-time area detector servo demodulator for hard disk drives

N.de F. Garrido, J.E. Franca
1998 IEEE International Conference on Electronics, Circuits and Systems. Surfing the Waves of Science and Technology (Cat. No.98EX196)  
ABSTRACT+ This paper presents a continuous-time servo demodulator for magnetic disk drives implemented as a programmable current-mode operated Gm-C filter. This first order filter consists of pseudo-differential balanced transconductors and of a MOSFET bank array to implement a variable integrating capacitor. Simulation results are presented.
doi:10.1109/icecs.1998.814847 fatcat:x3lk73dowvhh5lpoqhxwxryyvm