Received Jun 12, 2011 Revised Aug 20, 2011 Accepted Feb 26, 2012 A gain modified CMOS Operational Transconductance Amplifier (OTA) for a 16 bit pipeline Analog-to-Digital Converter (ADC) is presented. The circuit is designed to be used for a high resolution and low sampling rate ADC. Gain boosting technique is implemented in the design to achieve high DC gain and settling time as required. Post...

Analog buffer amplifier configurations capable of driving heavy resistive load using different operational transconductance (OTA) are presented in this paper. The OTA CMOS designed 0.18 ?m SCL technology library Cadence Virtuoso tool and multigate transistor TCAD Sentaurus tool. configuration simple outperform the circuits other OTAs terms power dissipation stability. Measured results show that...

|A fth-order, 4MHz elliptic low-pass Gm-C lter is described, which is tuned by singleintegrator based on-chip tuning circuit. MOS transistors in linear region are used for voltage-to-current conversion in OTA for low voltage operation. The experimental results of the prototype implemented in a 0:8 m CMOS process are given.

The comparator is designed in pipelined ADC. FINFET is the technology which performs the dual gate MOSFET. This thesis focuses on the high-speed design of pipelined ADC. In the meanwhile, we try to minimize the power dissipation as well. In this thesis, A semidigital Gm-based amplifier is proposed for a low-power pipelined analog-to-digital converter (ADC )in HSPICE .And also we compare the pow...

−A 300MHz CMOS seventh−order linear phase gm−C filter based on a current−mode multiple loop feedback (MLF) leap−frog (LF) structure is realized. The filter is implemented using a fully−differential linear operational transconductance amplifier (OTA) based on a source degeneration topology. PSpice simulations using a standard TSMC 0.18μm CMOS process with 2.5V power supply have shown that the cu...

Analog circuit design is a challenging activity because the analog design procedure targets complex design specifications that are closely related to transistor sizing and device technology dependent. This paper addresses the design of CMOS Miller Operational Transconductance Amplifier (OTA) using a design methodology based on the gm/ID characteristic with some new features, including to the de...

This paper presents the design of CMOS operational transconductance amplifiers (OTAs) with very small transconductance (of order of nano ampere per volt), which uses in very low frequency continuous time filters. This design uses current division technique to reduce the transconductance of OTA. This design is simulated in SPICE tool using 0.25μm technology model file.

A low voltage low power operational transconductance amplifier (OTA) based on a bulk driven cell and its application to implement a tunable Gm-C filter is presented. The linearity of the OTA is improved by attenuation and source degeneration techniques. The attenuation technique is implemented by bulk driven cell which is used for low supply voltage circuits. The OTA is designed to operate with...