[I21 amplifier-based nonlinear function syntheses,” IEEE J . SolidState Circuits, vol. 24, pp. 1576-1586, Dec. 1989. K. K. Clarke and D. T. Hess, Communication Circuits: Analysis and Design. Reading MA: Addison Wesley, 1978. A. Rodriguez-VBzquez, B. Linares-Barranco, J. L. Huertas, and E. SBnchez-Sinencio, “On the design of voltage controlled sinusoidal oscillators using OTAs,” IEEE Trans. Circ...

This paper presents a new application of the multiple-input operational transconductance amplifier (MI-OTA). The MI-OTA has been used to realize first-order universal filter which shows that transfer functions such as low-pass, high-pass, and all-pass filters can be obtained easily from single topology by applying input signal appropriate terminals. Moreover, both non-inverting inverting all fi...

This paper presents a new approach based on the use of Current Steering (CS) technique for design fully integrated Gm–C Low Pass Filters (LPF) with sub-Hz to kHz tunable cut-off frequencies and an enhanced power-area-dynamic range trade-off. The proposed has been experimentally validated by two different first-order single-ended LPFs designed in 0.18 µm CMOS technology powered 1.0 V single supp...

A low voltage high performance design of operational transconductance amplifier is proposed in this paper. The architecture based on bulk driven quasi-floating gate metal oxide semiconductor field effect transistor (MOSFET) which supports operation and improves the gain amplifier. Besides to tail current source requirement (OTA) removed by using flipped follower structure at input pair along wi...

This paper proposes a 32 GHz band radar receiver with an X8 multiplier. The Ka-band Rx chip used in the was fabricated by using 28-nm complimentary metal-oxide-semiconductor (CMOS) process and its built-in multiplier enables to driven low reference signal of 4 GHz. designed attached ground plane microstrip patch antenna connected feedline via bonding wire. impedance matching circuit implemented...

A bulk-driven operational transconductance amplifier (OTA) suitable for ultralow-power and ultralow-voltage applications is described. The exploits local positive feedback in the first stage to increase its transconductance. OTA entails a single Miller capacitor frequency compensation, thus saving area occupation improving performance. As distinctive feature of proposed solution, stable capacit...

In this paper, a low power and high CMRR Instrumentation Amplifier is presented. It has been designed for use in Bio-Impedance (BI) applications that operate within the beta dispersion frequency range. An IA with a high CMRR and input impedance allows the extraction of the low amplitude BI signal while reducing the error signals and noise associated with the tissue and instrument interface. The...

Ochratoxin A (OTA) is one of the most important mycotoxins that contaminate a broad range of agricultural and food products. In this study, the occurrence of OTA in available brands of grape juice in Iran purchased from retail outlets or producer were determined for the first time using high-performance liquid chromatography (HPLC) with immunoaffinity columns(IAC) as the clean-up step. The aver...

Ochratoxin A (OTA) is one of the most important mycotoxins that contaminate a broad range of agricultural and food products. In this study, the occurrence of OTA in available brands of grape juice in Iran purchased from retail outlets or producer were determined for the first time using high-performance liquid chromatography (HPLC) with immunoaffinity columns(IAC) as the clean-up step. The aver...