CMOS Transconductors With Continuous Tuning Using FGMOS Balanced Output Current Scaling

Lopez-Martin, A.J.; Ramírez-Angulo, J.; Carvajal, R.G.; Acosta, Lucía

doi:10.1109/jssc.2008.920333

Cited by 51 publications

(35 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Cascode transistors M 10 almost all practical implementations, a compensation capacitor will be desired to ensure stability. Therefore a capacitor C c has been added to create the compensation network between the first and the second stage of folded cascode OTA.…”

Section: Novel LV Lp Ccii+ Based On Floating-gate Folded Cascode Otamentioning

confidence: 99%

“…Acceptable low X-node parasitic DC resistance around 42 . 10. A conventional MOS transistor is used to model the FG MOS transistor.…”

Section: Novel LV Lp Ccii+ Based On Floating-gate Folded Cascode Otamentioning

confidence: 99%

“…These devices are showing potentials for analog signal processing, where they may find many applications [14,18]. Several active elements in the voltage mode have been designed using the FG technique, such as Op-Amp [16], OTA [2,5,6], Transconductors [10], class AB output stage for CMOS Op-Amps [4] and others. The transconductance of an FG transistor is smaller than the gate transconductance resulting in lower bandwidth.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Novel Ultra-Low-Power Class AB CCII+ Based on Floating-Gate Folded Cascode OTA

Khateb

Khatib

Kubánek

2011

Circuits Syst Signal Process

View full text Add to dashboard Cite

In this paper, a novel low-voltage ultra-low-power class AB current conveyor of the second generation based on folded cascode operational transconductance amplifier OTA with floating-gate differential pairs is presented. The main features of the proposed conveyor are design simplicity and rail-to-rail input voltage range at a low supply voltage of ±0.5 V. The proposed conveyor has a reduced power consumption of only 10 µW. Due to these features, the proposed conveyor could be successfully employed in a wide range of low-voltage low-power analog signal processing applications. PSpice simulation results using the 0.18 µm CMOS technology from TSMC are included to prove the results. As an example of application, a currentmode quadrature oscillator is designed and its functionality is proved by simulation.

show abstract

Section: Novel LV Lp Ccii+ Based On Floating-gate Folded Cascode Otamentioning

confidence: 99%

“…Acceptable low X-node parasitic DC resistance around 42 . 10. A conventional MOS transistor is used to model the FG MOS transistor.…”

Section: Novel LV Lp Ccii+ Based On Floating-gate Folded Cascode Otamentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Novel Ultra-Low-Power Class AB CCII+ Based on Floating-Gate Folded Cascode OTA

Khateb

Khatib

Kubánek

2011

Circuits Syst Signal Process

View full text Add to dashboard Cite

show abstract

“…where k = f (V GC ) with 0<k<1 [27]. The capacitance C to be scaled is connected between the two output terminals as shown in Figure 4(a).…”

Section: Programmable Scaling Factor Scheme Based On An Ota With Twomentioning

confidence: 99%

Three novel improved CMOS C‐multipliers

Aguado-Ruiz

Lopez-Martin

Ramírez-Angulo

2011

Circuit Theory & Apps

Self Cite

View full text Add to dashboard Cite

SUMMARYThree novel improved CMOS capacitance scaling schemes are presented and compared with some conventional schemes. The novel topologies that use a modified second-generation current conveyor, an improved cascode current mirror and an OTA with two outputs connected in current steering configuration provide higher values of Q and better frequency responses than conventional structures using basic current mirror schemes, as the simple current mirror or cascode current mirrors. Simulation results and some measurements of a chip prototype are presented.

show abstract

“…The use of passive resistors precludes continuous tuning, while the use of MOS transistors precludes programmability of transconductance in a wide range. Besides these techniques, new OTA topologies and operation modes, such as weak and moderate inversion, have been exploited [8], [9]. Transconductors using active resistors based on transistors operating in the triode region is a straightforward way to achieve a programmable linear V-I conversion.…”

Section: Introductionmentioning

confidence: 99%

Low-Voltage Tunable Pseudo-Differential Transconductor with High Linearity

Galán¹,

Carrasco²,

Pennisi³

et al. 2009

ETRI J

Self Cite

View full text Add to dashboard Cite

A novel tunable transconductor is presented. Input transistors operate in the triode region to achieve programmable voltage-to-current conversion. These transistors are kept in the triode region by a novel negative feedback loop which features simplicity, low voltage requirements, and high output resistance. A linearity analysis is carried out which demonstrates how the proposed transconductance tuning scheme leads to high linearity in a wide transconductance range. Measurement results for a 0.5 μm CMOS implementation of the transconductor show a transconductance tuning range of more than a decade (15 μA/V to 165 μA/V) and a total harmonic distortion of −67 dB at 1 MHz for an input of 1 V pp and a supply voltage of 1.8 V.

show abstract

CMOS Transconductors With Continuous Tuning Using FGMOS Balanced Output Current Scaling

Cited by 51 publications

References 29 publications

Novel Ultra-Low-Power Class AB CCII+ Based on Floating-Gate Folded Cascode OTA

Novel Ultra-Low-Power Class AB CCII+ Based on Floating-Gate Folded Cascode OTA

Three novel improved CMOS C‐multipliers

Low-Voltage Tunable Pseudo-Differential Transconductor with High Linearity

Contact Info

Product

Resources

About