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

Volume

1

fYear

1990

fDate

19-21 Sept. 1990

Firstpage

41

Lastpage

44

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 1990. ESSCIRC '90. Sixteenth European

Conference_Location

Grenoble

Print_ISBN

2-86332-087-4

Type

conf

Filename

5468002