Title :
A full CMOS 150 MHz OTA-C 7th order linear phase filter
Author :
López-Martinez, Adan ; Antonio-Chávez, Regina ; Silva-Martínez, Jose
Author_Institution :
Dept. of Electron., Nat. Inst. for Res. in Astrophy., Opt. & Electron., Puebla, Mexico
Abstract :
A full CMOS 150 MHz linear phase low-pass filter intended for hard disk drive read channel systems is discussed. An operational transconductance amplifier (OTA) based on complementary differential pairs is used to achieve high-frequency operation. The filter is based on OTA-C. Simulation results in a 0.35 μm CMOS process have shown a group delay ripple of 3% for frequencies up to 180 MHz, while the power consumption is only 37 mW
Keywords :
CMOS analogue integrated circuits; active filters; disc drives; hard discs; linear phase filters; 0.35 micron; 150 to 180 MHz; 37 mW; CMOS; OTA-C seventh-order linear phase filter; complementary differential pairs; group delay ripple; hard disk drive read channel systems; high-frequency operation; low-pass filter; power consumption; CMOS process; Delay; Differential amplifiers; Energy consumption; Frequency; Hard disks; Low pass filters; Nonlinear filters; Operational amplifiers; Transconductance;
Conference_Titel :
Low Power/Low Voltage Mixed-Signal Circuits and Systems, 2001. (DCAS-01). Proceedings of the IEEE 2nd Dallas CAS Workshop on
Conference_Location :
Plano, TX
Print_ISBN :
0-7803-6624-7
DOI :
10.1109/DCAS.2001.920984
