The paper presents current adder and subtractor circuits based on cascode current mirror with improved linearity and wide linear range. The proposed circuits can be used for analog signal processing applications such as amplifiers, operational transconductance amplifiers (OTA), Gm-C filters, etc. In the proposed circuits, cascode current mirror topology is employed to improve current mirroring ...

This article presents a comprehensive study on the occurrence mechanism, instability analysis, and suppression methods of self-sustained turn- off oscillation, which occurs cascode gallium nitride high electron mobility transistors (cascode GaN HEMTs). In beginning, oscillation waveforms are an...

A Low Noise Amplifier (LNA) is an important building block in the RF receiver chain. Typically the LNA should provide acceptable gain and high linearity while maintaining low noise and power consumption. To optimize these conflicting goals the so-called Cascode topology is widely used in industry. Here the gain cell is comprised of two transistors, one in common-source and the other in common g...

This paper presents an optimized methodology to folded cascode operational transconductance amplifier (OTA) design. The design is done in different regions of operation, weak inversion, strong inversion and moderate inversion using the gm/ID methodology in order to optimize MOS transistor sizing. Using 0.35μm CMOS process, the designed folded cascode OTA achieves a DC gain of 77.5dB and a unity...

In recent years, there has been an increasing demand for high-speed digital circuits at low power consumption. This paper presents a design of input stage of Operational Amplifier i.e cascode differential amplifier using a standard 65nm CMOS Technology.A comparison betweem gate-driven, bulk-driven and cascode bulk driven bulk-driven differential amplifier is described. The Results demonstrate t...

This letter describes the use of a power-optimized cascode configuration for obtaining maximum output power at millimeter-wave (mm-wave) frequencies for a two-way combined power amplifier (PA). The PA has been fabricated in a high-speed InP double heterojunction bipolar transistor technology and has a total active emitter area of 68.4 lm2. The experimental results demonstrate a small signal gai...

A new very high performance low voltage cascode current mirror (CM) circuit is proposed in this work. The CM utilizes the low supply voltage and low input resistance characteristics of a cascode CM. In this CM, cascode configuration is used to obtain a wide operating current range and resistance compensation technique is incorporated to increase the operating bandwidth. The peaking in frequency...