This paper presents the design and performance comparison of a two stage operational amplifier topology using CMOS and BiCMOS technology. This conventional op amp circuit was designed by using RF model of BSIM3V3 in 0.6 μm CMOS technology and 0.35 μm BiCMOS technology. Both the op amp circuits were designed and simulated, analyzed and performance parameters are compared. The performance paramet...

Syllogistic reasoning is modeled in analog hardware and some hardware models, i.e. syllogisms Baroco and Darii are presented. Chaining of syllogisms is modeled by using original min-max entities (circuits), “to see” whether the two rules, modeled in dedicated hardware, i.e., IF A THEN B and IF B THEN C imply the “hardware” rule IF A THEN C. The preliminaries include original min-max circuits ba...

A new circuit technique for voltage gain enhancement in CMOS op amp design suitable for low voltage and high speed operation is presented in this paper. A negative conductance is used to cancel the positive output conductance of an amplifier thereby reducing the total equivalent output conductance and increasing the voltage gain of the amplifier. The negative conductance is derived from the out...

A computer controlled pH meter was developed using simple op-amp circuits. Analog to digital converter (ADC) card was used to acquire the output potential from the op-amp. S9ftware based signal averaging helped in reduction of electrical noise. The instrument was calibrated against pH and ammonia selective electrodes where it followed Nemstian behaviour and was l\Sed in the development of a sim...

In this brief, it is shown that two of the recently reported voltage mode and current mode current conveyor-based all-pass circuits can be generated from the well known single input op amp all-pass configuration. It is also found that two other voltage mode current conveyor-based all-pass circuits are related directly to the differential input op amp all-pass structure. Several new grounded cap...

Abstract— This paper proposes a procedure for converting a class of Op Amp-, FTFN-, CCand CFAbased voltage mode circuits to corresponding current mode circuits without requiring any additional circuit elements and finally from Op Amp-based voltage mode circuits to any of the FTFN, CC and CFA current mode circuits. The latter circuits perform better at high frequency than the former ones. The va...

In a never-ending effort to reduce power consumption and gate oxide thickness, the integrated circuit industry is constantly developing smaller power supplies. Furthermore, in an effort to reduce costs and integrate analog and digital circuits onto a single chip, MOS devices are used in the weak inversion region or the subthreshold inversion region to minimize dc source power. A feasible config...

The performances of two full differential operational amplifiers (Op-Amps) telescopic and foldedcascode are evaluated to satisfy the stringent requirements on the amplifier to be used in a Multiplying Digitalto-Analog Converter (MDAC) stage of a pipelined ADC (Analog-to-Digital Converter). The paper shows the solutions found to reach high gain, wide bandwidth and short settling time without deg...

Operational amplifiers (op amps) are as prolific in analog circuits as salt and pepper is on food. They are sprinkled throughout the sensor data acquisition system, performing a variety of functions. For instance, at the sensor interface, amplifiers are used to buffer and gain the sensor output. The current or voltage excitation to the sensor, quite often is generated by an amplifier circuit. F...

This paper presents the application of reinforcement learning in automatic analog IC design. In this work, the Multi-Objective approach by Learning Automata is evaluated for accommodating required functionalities and performance specifications considering optimal minimizing of MOSFETs area and power consumption for two famous CMOS op-amps. The results show the ability of the proposed method to ...