A BiCMOS biquadratic continuous-time filter is presented. The cell has been designed as a 'noise' shaper for signal processing in an electronic read-out channel of elementary particle detectors. The network synthesizes a semigaussian response where the shaping time (nominally 20 nsec) and the quality factor (nominally 1/2) can be externally adjusted to realize the desired transient response. A linearity error lower than 1% is achieved for step input signal amplitudes up to 240 mV. The input referred noise is about 40 nV/ Hz and the total current consumption is 200 uA.
Baschirotto, A., Cesura, G., Rezzi, F., Svelto, F. (1993). BiCMOS tunable shaper for detectors of elementary particles. In IEEE International Symposium on Circuits and Systems, ISCAS '93 (pp.1077-1080). Piscataway, NJ, United States : IEEE [10.1109/ISCAS.1993.393921].
BiCMOS tunable shaper for detectors of elementary particles
BASCHIROTTO, ANDREA;
1993
Abstract
A BiCMOS biquadratic continuous-time filter is presented. The cell has been designed as a 'noise' shaper for signal processing in an electronic read-out channel of elementary particle detectors. The network synthesizes a semigaussian response where the shaping time (nominally 20 nsec) and the quality factor (nominally 1/2) can be externally adjusted to realize the desired transient response. A linearity error lower than 1% is achieved for step input signal amplitudes up to 240 mV. The input referred noise is about 40 nV/ Hz and the total current consumption is 200 uA.
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