Title :
A highly programmable gain and cutoff frequency multi-channel data acquisition chip
Author :
Stevenson, Jan-Michael ; Han, Gunhee ; Sanchez-Sinencio, Edgar
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
The design of a generalized programmable data acquisition chip is introduced. The chip has two separate channels, each consisting of a variable gain low-noise preamplifier, a local anti-aliasing filter and a switched-capacitor lowpass filter with programmable cutoff frequency (0.5 Hz to 2 kHz). Experimental results from the 2 μm CMOS fabricated chips are in good agreement with the theoretical results
Keywords :
CMOS analogue integrated circuits; analogue processing circuits; data acquisition; low-pass filters; preamplifiers; programmable filters; switched capacitor filters; 0.5 Hz to 2 kHz; 2 micron; CMOS IC; local anti-aliasing filter; low-noise preamplifier; multi-channel data acquisition chip; programmable cutoff frequency; programmable gain; switched-capacitor lowpass filter; variable gain LNA; Circuit noise; Cutoff frequency; Data acquisition; Digital signal processing chips; Filters; Gain; Preamplifiers; Switched capacitor circuits; Switches; Voltage;
Conference_Titel :
Circuits and Systems, 1997. Proceedings of the 40th Midwest Symposium on
Conference_Location :
Sacramento, CA
Print_ISBN :
0-7803-3694-1
DOI :
10.1109/MWSCAS.1997.666098
