Title :
High Performance Opamps in a 40 V BICMOS Process and their Applications
Author :
Bardyn, J.-P. ; Graindourze, B. ; Blieck, S. ; Casier, H.
Author_Institution :
ISEN, Lille, France
Abstract :
This paper describes two opamps and their applications. They have been processed in a 40 V BICMOS process. The low noise opamp combines a high input impedance with a thermal noise level of 8 nV/VHz and a corner frequency of 100 Hz. The broadband opamp, also with high input impedance, shows a gain-bandwidth of 15 MHz with a load capacitance varying from 0 to 20 pF. A 4th order low pass switched capacitor filter processed in the 40 V BICMOS technology is discussed as an example of an application for the latter cell.
Keywords :
BiCMOS analogue integrated circuits; capacitance; low noise amplifiers; low-pass filters; operational amplifiers; switched capacitor filters; thermal noise; wideband amplifiers; BICMOS process; broadband opamp; corner frequency; frequency 100 Hz; gain bandwidth; high input impedance; high performance opamps; load capacitance varying; low noise opamp; low pass switched capacitor filter; thermal noise level; voltage 40 V; BiCMOS integrated circuits; Capacitance; Capacitors; Circuit noise; Frequency; Impedance; MOSFETs; Mirrors; Noise reduction; Transconductance;
Conference_Titel :
Solid-State Circuits Conference, 1990. ESSCIRC '90. Sixteenth European
Conference_Location :
Grenoble
Print_ISBN :
2-86332-087-4
