Title :
8-32MHz Tunable BICMOS Continuous-Time Filter
Author :
Alini, R. ; Baschirotto, A. ; Castello, R.
Author_Institution :
University of Pavia, Department of Electronics, Via Abbiategrasso, 209 - 27100 Pavia, Italy
Abstract :
A new transconductor stage in BiCMOS technology is presented. The main characteristics of the stage are: high linearity of operation, non-dominant poles in the range of gigahertzs, low noise and operation from a single 5V power supply. A 2nd-order lowpass filter cell based on this transconductor has been designed and realized in a 2¿m BiCMOS technology. The cutoff frequency fo of the cell can be tuned in the range of 8-32MHz; the quality factor is 2. The filter THD stays lower than 40dB for an output signal up to 3.2Vpp at 5MHz frequency. The area of the cell is 500 mils2 and the power consumption (with fo= 25MHz) is 30mW.
Keywords :
Acceleration; BiCMOS integrated circuits; Capacitance; Circuit synthesis; Converters; Decoding; Drives; Large scale integration; Power dissipation; Voltage control;
Conference_Titel :
Solid-State Circuits Conference, 1991. ESSCIRC '91. Proceedings - Seventeenth European
Conference_Location :
Milan, Italy
