The flipped voltage follower: a useful cell for low-voltage low-power circuit design

Ramírez-Angulo, J.; Carvajal, R.G.; Torralba, A.; Galán, J.; Vega-Leal, A.P.; Tombs, J.

doi:10.1109/iscas.2002.1010299

Cited by 133 publications

(51 citation statements)

References 6 publications

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“…The local feedback allows M1 to adjust its gate-source voltage, so it offers the capability to source large currents, and it offers an output resistance of ≈1/gm1gm2ro2. It is similar to the popular Flipped Voltage Follower [9], [10] shown in Fig. 2c; however, the FFVF has an increased output swing of VDD -VGS1 -2VDSsat, compared to that of the FVF which is limited to VTH-VDSsat2.…”

Section: Proposed Capacitance Multipliermentioning

confidence: 88%

See 1 more Smart Citation

Capacitance multiplier with large multiplication factor, high accuracy, and low power and silicon area for floating applications

Padilla-Cantoya

Rizo-Dominguez

Molinar-Solís

2018

IEICE Electron. Express

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A capacitance multiplier with high accuracy and reduced power consumption and silicon area, is presented. It offers a scaling factor based on ratios of resistors that can be physically matched to reduce deviations due to fabrication process. Resistor ratios also offer the property to define large scaling factors without increasing power consumption or silicon area. It is based on a modified current-mode multiplication technique that scales voltage magnitude instead of internal devices of the current-providing device. Simulation results show scaling factors of 10, 100, 1k and 10k. Experimental testing shows the results of the implementation of the floating equivalent multiplier implemented in a notch RLC filter with a scaling factor of 1k.

show abstract

Section: Proposed Capacitance Multipliermentioning

confidence: 88%

“…2c; however, the FFVF has an increased output swing of VDD -VGS1 -2VDSsat, compared to that of the FVF which is limited to VTH-VDSsat2. [9], d) practical implementation of the resistor-based OTA [10], and e) conventional amplifier topology used for OTA1.…”

Section: Proposed Capacitance Multipliermentioning

confidence: 99%

Capacitance multiplier with large multiplication factor, high accuracy, and low power and silicon area for floating applications

Padilla-Cantoya

Rizo-Dominguez

Molinar-Solís

2018

IEICE Electron. Express

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show abstract

“…In Fig. 8, generated differential current is proportional to V id 2 [11][12]. Also the output current is proportional to I d 2 and hence, it is proportional to V id 2 .…”

Section: Super Class-ab Otamentioning

confidence: 99%

Evaluation of a New Hybrid Technique Based on DTMOS and PFA to Improve Supply Voltage and Power Consumption of a Class-AB Amplifier

Movahedi-Aliabad¹

2015

JEEE

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In this paper, two useful techniques of Dynamic Threshold Voltage MOSFET (DTMOS) and Positive FeedbackAmplifier (PFA) are investigated separately and are applied simultaneously on a Class-AB Amplifier in the 180 nm CMOS technology. In the first proposed technique, Simulation results show that operating voltage can be limited to ±0.5 V in which the voltage gain and bandwidth are 52.6 dB and 103.51 MHz, respectively. In the second proposed technique, the power consumption is reduced more than 50%, the open-loop gain is enhanced 47% and Common Mode Rejection Ratio (CMRR) improves to 86.5 dB. By applying combination of these two techniques for designing the amplifier, CMRR increases to 92.1 dB and the power consumption reduces to 97 µW with the bandwidth of 59.12 MHz.

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“…By providing a low tempco reference voltage (e.g., bandgap voltage reference) at the input of the unity-gain buffer, this will be re-generated at the output of the buffer. Thus, is given by (2) where is the source-gate voltage of . Since ( and are of the same size and of the same bias condition), the following relationship is achieved:…”

Section: Structure and Working Principle Of Stc-ldomentioning

confidence: 99%

Development of Single-Transistor-Control LDO Based on Flipped Voltage Follower for SoC

Man

Leung

et al. 2008

IEEE Trans. Circuits Syst. I

164

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The flipped voltage follower: a useful cell for low-voltage low-power circuit design

Cited by 133 publications

References 6 publications

Capacitance multiplier with large multiplication factor, high accuracy, and low power and silicon area for floating applications

Capacitance multiplier with large multiplication factor, high accuracy, and low power and silicon area for floating applications

Evaluation of a New Hybrid Technique Based on DTMOS and PFA to Improve Supply Voltage and Power Consumption of a Class-AB Amplifier

Development of Single-Transistor-Control LDO Based on Flipped Voltage Follower for SoC

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