This paper presents a data acquisition solution using a RISC type microcontroller with very few components around, taking advantage of the ratiometric functioning of the load cells. The need of thermally stable circuits is minimized through the use of the same amplification chain for both signal and reference. The amplification and filtering are done trough switched-capacitor techniques control...

A by-inspection analysis method for multiphase switcbedcapacitor (SC) networks using signal-flow graph (SFG) techniques is presented. The method is quite general; no restrictions on the networks are required. It is also very simple and direct in the sense that it allows an immediate, by-inspection derivation of the SFG merely on the basis of a given SC network. The method is primarily useful fo...

CMOS continuous-time and switched-capacitor filters which operate at high frequencies with high Quality factor Q are difficult to realize. The finite gain and tlie fulite bandwidth of the integrator amplifiers are the main limitation. This paper describes two techniques to siniultaneously increase bandwidth. transconductance. and DC-gain of an amplifier without changing the excess bias or the p...