High-frequency active filter design using monolithic nullors

A monolithic building block suitable for high-frequency RC active filter implementation is described. The transconductance-type device is fabricated using standard bipolar technology, and its performance is shown to be superior to corresponding voltage operational amplifiers (op amps) at frequencies above 20 kHz. It is also shown that high quality simulated inductance and frequency dependent negative resistance elements can be implemented at higher frequencies than is possible using standard bipolar op amps.

[1]  Leonard T. Bruton,et al.  Novel g.i.c. suitable for RC active-filter applications , 1979 .

[2]  M.K.N. Rao,et al.  A modified current mirror with level shifting capability and low input impedance , 1979, IEEE Journal of Solid-State Circuits.

[3]  L. Bruton,et al.  Multiple-amplifier RC-active filter design with emphasis on GIC realizations (Invited Paper) , 1978 .

[4]  Leonard T. Bruton,et al.  Network Transfer Functions Using the Concept of Frequency-Dependent Negative Resistance , 1969 .

[5]  Andreas Antoniou,et al.  A compensation technique for a gyrator and its use in the design of a channel-bank filter , 1975 .

[6]  Bob Blauschild.  High-voltage analog performance with low-voltage digital devices [100 V dense operational amplifier , 1978 .

[7]  J.H. Huijsing,et al.  Monolithic nullor-a universal active network element , 1977, IEEE Journal of Solid-State Circuits.

[8]  P. E. Allen,et al.  The use of current amplifiers for high performance voltage applications , 1980 .

[9]  R. Blauschild.  High-voltage analog performance from low-voltage digital devices , 1978, 1978 IEEE International Solid-State Circuits Conference. Digest of Technical Papers.

[10]  W. Saraga,et al.  Microelectronic active RC channel bandpass filters in the frequency range 60-108 kHz for FDM SSB telephone systems , 1978 .

[11]  D. F. Sheahan,et al.  Inductorless bandpass filters , 1970 .

[12]  Leonard T. Bruton,et al.  Nonideal performance of two-amplifier positive-impedance converters , 1970 .

[13]  Leonard T. Bruton,et al.  Monolithic v.c.c.s. for high-frequency RC active filters , 1980 .

[14]  P. Brackett,et al.  Direct SFG simulation of LC ladder networks with applications to active filter design , 1976 .