Title :
A low-noise amplifier for switched capacitor filters
Author :
Jolly, Richard D. ; McCharles, Robert H.
Abstract :
A low-noise CMOS amplifier and a switched capacitor integrator is described along with experimental data on 1/f noise. An amplifier for use in switched capacitor circuits was fabricated that achieved an input referred noise of 130 nV per root Hz at 100 Hz in a die area of only 0.12 mm/SUP 2/. Using the amplifier the authors fabricated a low-noise switched capacitor integrator which has a dynamic range of 110 dB over a 10 kHz bandwidth.
Keywords :
Electron device noise; Field effect integrated circuits; Insulated gate field effect transistors; Integrating circuits; Semiconductor device models; Switched filters; electron device noise; field effect integrated circuits; insulated gate field effect transistors; integrating circuits; semiconductor device models; switched filters; Acoustical engineering; Capacitors; Circuit noise; Frequency; Low-frequency noise; Low-noise amplifiers; MOS devices; MOSFETs; Semiconductor device noise; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1982.1051879
