Transconductor and integrator circuits for integrated bipolar video frequency filters

Heij de, W.J.A. and Seevinck, Evert and Hoen, K. (1989) Transconductor and integrator circuits for integrated bipolar video frequency filters. In: IEEE International Symposium on Circuits and Systems, ISCAS 1989, 8-11 May 1989, Portland, OR, USA.

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Abstract:	A description is presented of novel transconductor and integrator circuits which can be used in integrated video frequency filters in bipolar technology. The transconductor consists of a parallel connection of a passive nominal transconductance and an active variable transconductance, resulting in good high-frequency performance up to 70 MHz and less than 1% linearity error for input signals up to 2V pp. The integrator incorporates an operation transconductance amplifier circuit which provides a tunable integrator phase. Simulation results for all circuits and for a fifth-order elliptic low-pass filter with a nominal cutoff frequency of 5 MHz are presented
Item Type:	Conference or Workshop Item
Copyright:	©1989 IEEE
Faculty:	Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:	Integrated Circuit Design (ICD)
Link to this item:	http://purl.utwente.nl/publications/56101
Official URL:	http://dx.doi.org/10.1109/ISCAS.1989.100304
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