The design of a CMOS 22–29-GHz pulse-radar receiver (RX) front-end for ultra-wideband automotive radar sensors is presented. The chip includes a low-noise amplifier, in-phase/quadrature mixers, a quadrature voltage-controlled oscillator (QVCO), pulse formers, and baseband variable-gain amplifiers. Fabricated in a 0.18m CMOS process, the RX front-end chip occupies a die area of 3 mm . On-wafer m...

Direct tunneling current through the gate oxide is becoming a significant component of transistor leakage in deep sub-micron technology. This paper studies how gate leakage impacts the performance of analog CMOS ICs for the 90nm node. Results show that in DC referencing circuits such as current mirrors, a tradeoff exists between transistor width and mirrored reference current to improve accurac...

using a new numerical model, the pump-to-signal relative intensity noise (rin) transfer in singlepumpfiber optical parametric amplifiers for low modulation frequencies is investigated. the model includesfiber loss, pump depletion, as well as the gain saturation, and therefore, it can describe the practicalcircumstances associated with various applications of fiber optical parametric amplifiers....

The National Metrology Institute of Colombia (INM) uses high accuracy calibrators (such as Fluke 5720A/5730A) AC current reference standards. We describe the implementation at INM AC-DC transfer standards by single junction thermal converters (SJTC) to improve measurements and give traceability International System Units (SI) within country. measurement model, present uncertainty budget estimat...

Operational amplifier exists in many numbers of configurations. The there are types the amplifiers. These are: two stage, single three stage and multistage Identifying better op amp is important to get application. will be selected by considering performance parameters (DC Gain, Slew Rate, Power Dissipation, etc.) amp. In project work a cmos CMOS operational has been compared contrasted based o...

This paper exploits the unique ambipolar conduction property of graphene field effect transistors to realize a single transistor polarity controllable amplifier. The amplifier is polarity controllable since its small signal gain can be switched between positive and negative modes through proper biasing. Polarity controllable amplifiers can greatly simplify communication circuits in applications...

Submicron YBCO bicrystal Josephson junctions (JJ) and devices for high frequency applications were designed, fabricated and experimentally studied. The key elements of these devices are bicrystal sapphire substrates with symmetric misorientation angles 14.2 , 18.4 and 24 which were fabricated by a solid-state intergrowth method. A technological process based on deep ultraviolet photolithography...

So effectively, you can say that the capacitor acts as a low-pass filter when it in a transistor circuit, it blocks the DC and acts as a low impedance path for AC. Official Full-Text Publication: Single Transistor Active Filters: What is Possible and The results presented here fill both a circuit-theoretic gap and an application-oriented gap related to single a case is the low-pass filter numbe...

Abstrtict— A general gain-enhancement technique for operational amplifiers using a replica amplifier is described. Unlike conventional techniques such as cascoding, which increases the gain by increasing the output resistance, the replica-amp technique increases the gain by matching the main and the replica amps. Among the advantages of the replica-amp technique are low supply, high swing, and ...

Abstract − The switched-mode second-order Class E configuration with a generalized load network including the shunt capacitance, series bondwire inductance, finite DC feed inductance and series LC circuit is analytically defined with a set of the exact design equations. Based on these equations, the required voltage and current waveforms and circuit parameters are determined for both general ca...