A tunable highly linear CMOS transconductor with 80 dB of SFDR

Jimenez-Fuentes, M.; Carvajal, R.G.; Acosta, Lucía; Rubia-Marcos, C.; López-Martín, Antonio J.; Ramírez-Angulo, J.

doi:10.1016/j.vlsi.2008.11.002

Cited by 10 publications

(3 citation statements)

References 23 publications

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“…The common drain amplifier is presented in Fig 2 (a). It presents the simplest design of a high linearity unity buffer [16]. This circuit can be operated with a minimum supply voltage of :…”

Section: Adaptive Biasingmentioning

confidence: 99%

High CMRR Voltage Mode Instrumentation Amplifier Using a New CMOS Differential Difference Current Conveyor Realization

Ettaghzouti

Hassen

2020

International Journal of Systems Applications, Engineering &Amp; Development

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This paper describes a new CMOS realization of differential difference current conveyor circuit. The proposed design offers enhanced characteristics compared to DDCC circuits previously exhibited in the literature. It is characterized by a wide dynamic range with good accuracy thanks to use of adaptive biasing circuit instead of a constant bias current source as well as a wide bandwidth (560 MHz) and a low parasitic resistance at terminal X about 6.86 Ω. A voltage mode instrumentation amplifier circuit (VMIA) composed of a DDCC circuit and two active grounded resistances is shown as application. The proposed VMIA circuit is intended for high frequency applications. This configuration offers significant improvement in accuracy as compared to the state of the art. It is characterized by a controllable gain, a large dynamic range with THD less than 0.27 %, a low noise density (22 nV/Hz1/2) with a power consumption about 0.492 mW and a wide bandwidth nearly 83 MHz. All proposed circuits are simulated by TSPICE using CMOS 0.18 μm TSMC technology with ± 0.8 V supply voltage to verify the theoretical results.

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Section: Adaptive Biasingmentioning

confidence: 99%

High CMRR Voltage Mode Instrumentation Amplifier Using a New CMOS Differential Difference Current Conveyor Realization

Ettaghzouti

Hassen

2020

International Journal of Systems Applications, Engineering &Amp; Development

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“…In order to improve their linearity, super-linear source follower techniques, which increase the effective g m of the input devices, have been proposed [8]. A pseudo-differential implementation of this structure is used, consisting of a transconductor stage for each input and a common mode output feedback loop through M P 1B .…”

Section: B Wide-band Wide-input-range Transconductormentioning

confidence: 99%

A wide band CMOS Class-D line driver for wireline communication

Maughan

Henderson

2010

2010 53rd IEEE International Midwest Symposium on Circuits and Systems

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A wide band Class-D line driver for wireline communications is presented in a low voltage CMOS technology. The new driver improves switching frequencies by a factor of six compared to other works. To reach wide bandwidths, a new NMOS only output stage and a new transconductor are developed. Simulated results of the complete line driver implemented in 0.13µm CMOS, with a 30MHz HomePlug AV input signal and 160MHz switching frequency, show an efficiency of 22.8% with 111mW injected power.

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“…Many research papers have been published on the replacement of standard resistors by active resistors in RC filters [4]- [7], transconductors [8]- [11], and universal active resistors [12]- [16]; alternatively, digitally programmable OTAs (operational transconductance amplifiers) are employed for the given purpose [17]- [25]. Active resistor circuits embody complex structures, implemented by employing MOS transistors that are functionally equivalent to classic resistors.…”

Section: Introductionmentioning

confidence: 99%

An Active Resistor With a Lower Sensitivity to Process Variations, and its Application in Current Reference

et al. 2020

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A novel active resistor circuit offering less sensitivity to process and temperature variations without any extra trimming is proposed. The circuit consists of two accurately matched, high resistance polysilicon (hripoly) resistors and a voltage-controlled MOS resistor, and it is designed for the industrial temperature range (-20 • C to 85 • C) in the TSMC 180 nm general-purpose process. The actual performance of the circuit is analyzed by using the Corner and Monte Carlo analyses that comprise two thousand samples for the global and local process variations. The maximum error in the resistor value is ±6.2 %, with the standard deviation of σ = 1.2 %. The proposed active resistor reduces the maximum error from ±15 % to ±6.2 % when the both the process and the temperature variations are considered without trimming. As an application, a transconductor and a current reference based on the novel active resistor are introduced, and their accuracy-related performance is studied.

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A tunable highly linear CMOS transconductor with 80 dB of SFDR

Cited by 10 publications

References 23 publications

High CMRR Voltage Mode Instrumentation Amplifier Using a New CMOS Differential Difference Current Conveyor Realization

High CMRR Voltage Mode Instrumentation Amplifier Using a New CMOS Differential Difference Current Conveyor Realization

A wide band CMOS Class-D line driver for wireline communication

An Active Resistor With a Lower Sensitivity to Process Variations, and its Application in Current Reference

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