A bulk-driven quasi-floating gate FVF current mirror for low voltage, low power applications

Bchir, Mounira; Aloui, Imen; Hassen, Néjib

doi:10.1016/j.vlsi.2020.04.002

Cited by 16 publications

(4 citation statements)

References 28 publications

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“…The input referred noise was 14.5 pA/√Hz. [17][18][19][20]. The proposed mirror has the highest output resistance and the lowest input resistance of all mirrors.…”

Section: Simulation Results For Low-voltage High-performance Current ...mentioning

confidence: 94%

Class AB Voltage Follower and Low-Voltage Current Mirror with Very High Figures of Merit Based on the Flipped Voltage Follower

Ramírez-Angulo

Paul

Gangineni

et al. 2023

JLPEA

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The application of the flipped voltage follower to implement two high-performance circuits is presented: (1) The first is a class AB cascode flipped voltage follower that shows an improved slew rate and an improved bandwidth by very large factors and that has a higher output range than the conventional flipped voltage follower. It has a small signal figure of merit FOMSS = 46 MHz pF/µW and a current efficiency figure of merit FOMCE = 118. This is achieved by just introducing an additional output current sourcing PMOS transistor (P-channel Metal Oxide Semiconductor Field Effect Transistor) that provides dynamic output current enhancement and increases the quiescent power dissipation by less than 10%. (2) The other is a high-performance low-voltage current mirror with a nominal gain accuracy better than 0.01%, 0.212 Ω input resistance, 112 GΩ output resistance, 1 V supply voltage requirements, 0.15 V input, and 0.2 V output compliance voltages. These characteristics are achieved by utilizing two auxiliary amplifiers and a level shifter that increase the power dissipation just moderately. Post-layout simulations verify the performance of the circuits in a commercial 180 nm CMOS (Complementary Metal Oxide Semiconductor) technology.

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“…The input referred noise was 14.5 pA/√Hz. [17][18][19][20]. The proposed mirror has the highest output resistance and the lowest input resistance of all mirrors.…”

Section: Simulation Results For Low-voltage High-performance Current ...mentioning

confidence: 94%

Class AB Voltage Follower and Low-Voltage Current Mirror with Very High Figures of Merit Based on the Flipped Voltage Follower

Ramírez-Angulo

Paul

Gangineni

et al. 2023

JLPEA

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show abstract

“…At gate-to-source voltage of 0.6V, in proposed QFG-SC the output conductance of M1 becomes threefold smaller whereas the overall transconductance gets doubled when compared to its conventional design. So, it can be stated that by employing the proposed structure the performance of analog circuits can be easily enhanced for example in current mirrors (Raj et al 2014a(Raj et al , 2014b(Raj et al , 2015Raj 2021;Doreyatim et al 2019;Bchir, Aloui, and Hassen 2020), where the transconductance decides the performance parameter.…”

Section: Self Cascode Structurementioning

confidence: 99%

Design of Low Voltage Low Power High Gain Operational Transconductance Amplifier

Durgam

Tamil

Raj

2021

UPjeng

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In this paper, a high gain structure of operational transconductance amplifier is presented. For low voltage operation with improved frequency response bulk driven quasi-floating gate MOSFET is used at the input. Further for achieving high gain the modified self cascode structure is used at the output. Compared to conventional self cascode the modified self cascode structure used provides higher transconductance which helps in significant boosting of gain of the amplifier. The modification is achieved by employing quasi-floating gate transistor which helps in scaling of the threshold which as a result increases the drain-to-source voltage of linear mode transistor thus changing it to saturation. This change of mode boosts the effective transconductance of self cascode MOSFET. The proposed operational transconductance amplifier when compared to its conventional showed improvement in DC gain by 30dB and also the unity gain bandwidth increases by 6 fold. The MOS models used for amplifier design are of 0.18µm CMOS technology at supply of 0.5V.

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“…Various researches have been reported to attain the perfect performance of the CM circuit. The characteristic of the CM has a direct impact on the efficiency of the integrated circuits [10]- [12]. The CM presented in [13] is characterized by a low input impedance and a high output impedance.…”

Section: Introductionmentioning

confidence: 99%

A Bulk-Driven Quasi-Floating Gate Regulated Cascode Current Mirror and Its Application in Squarer Circuit

bchir

Bchir

Aloui

et al. 2022

Preprint

Self Cite

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A regulated cascode current mirror (RGC) and its improved version with bulk driven quasi floating gate technique (BD-QFG) are presented in this paper. The proposed BD-QFG RGC current mirror (CM) is compared with the conventional (GD) RGC CM to show the performance improvement. The conventional and unconventional CM are implemented in Candace Virtuoso using 90 nm CMOS technology. For input current (Iin) varied from 0 to 200 μA and for 0.8 V supply voltage, the simulation results present that the proposed BD-QFG RGC CM has less variation in current transfer error (0.2%) as compared to the GD RGC CM (12%). The output voltage requirement for 200 µA input current is respectively 0.7 V and 0.17 V for the GD RGC CM and the BD-QFG RGC CM. The power consumption of the proposed circuit is 22.71 μW which is 0.15 μW higher than the GD RGC (22.56 μW). The total harmonic distortion (THD) of the proposed circuit is 0.4% which is 1.1% less than the conventional circuit (1.5%). All these improvements in the proposed BD-QFG RGC CM are attained at a cost of 0.05 GHz reduction in frequency (2.31 GHz). The minimum supply voltage of BD-QFG RGC CM and GD RGC CM is 0.4 V and

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A bulk-driven quasi-floating gate FVF current mirror for low voltage, low power applications

Cited by 16 publications

References 28 publications

Class AB Voltage Follower and Low-Voltage Current Mirror with Very High Figures of Merit Based on the Flipped Voltage Follower

Class AB Voltage Follower and Low-Voltage Current Mirror with Very High Figures of Merit Based on the Flipped Voltage Follower

Design of Low Voltage Low Power High Gain Operational Transconductance Amplifier

A Bulk-Driven Quasi-Floating Gate Regulated Cascode Current Mirror and Its Application in Squarer Circuit

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