DC feedback technique for temperature stabilisation of tunable CMOS transconductors

Bruschi, P.; Maccioni, A.; Navarrini, D.; Piotto, M.

doi:10.1049/el:20030954

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…A versatile technique for linearly tunable transconductors that is based on the master/slave approach [2,[8][9][10][11][12][13][14] is introduced in this work. The technique uses a replica of the active (or slave) differential pair in a negative feedback configuration in order to stabilize the small-signal input transconductance.…”

Section: Introductionmentioning

confidence: 99%

A versatile technique for linearly tunable transconductors

Raikos

Vlassis

2010

2010 17th IEEE International Conference on Electronics, Circuits and Systems

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A versatile technique for linearly tunable CMOS transconductors is introduced in this work. The technique uses a replica circuitry of the active transconductor circuit in master-slave configuration. The presented implementation of the master-slave technique offers the advantages of the linear tuning of the input transconductance over wide range, the stability over PVT comers and the circuit simplicity. The operation and the performance of the implementation have been verified through simulation results using standard 0.18!lm CMOS process.

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Section: Introductionmentioning

confidence: 99%

A versatile technique for linearly tunable transconductors

Raikos

Vlassis

2010

2010 17th IEEE International Conference on Electronics, Circuits and Systems

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“…The circuit performances are maintained when the input common mode is varied over a wide interval. The problem of the large sensitivity to temperature can be overcome using DC master-slave architectures [4].…”

Section: Discussionmentioning

confidence: 99%

“…Unfortunately, Eqn. (4) indicates that, if the current I 0 is kept constant, the gate overdrive includes a term inversely proportional to V DS . As a consequence, it is not possible (i) to get large V ovd at large V DS and, at the same time, (ii) to prevent V ovd from getting excessively large at small V DS .…”

Section: Operating Principlementioning

confidence: 99%

A tunable CMOS transconductor for ultra-low Gm with wide differential input voltage range

Bruschi

Foti

Nizza

et al.

Proceedings of the 2005 European Conference on Circuit Theory and Design, 2005.

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A differential input, single ended output transconductor with gm in the range 0.5-5 nS is presented. The circuit uses a source coupled pair operated in triode region. The need of providing a fixed common mode input voltage, which afflicts circuits based on the same principle, is removed by adopting an original topology. The results of simulations based on the 0.35 µm BCD6 process of STMicroelectronics are presented. *

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