A low-power low-voltage OTA with rail-to-rail output is introduced. The proposed topology is based on the common current mirror OTA topology and provide gain enhancement without extra power consumption. Implemented in a standard 0.25μm CMOS technology, the proposed OTA achieves 50 dB DC gain in 0.8 V supply voltage. The GBW is 1.2MHz and the static power consumption is 8μW while driving 18pF lo...

The output voltage obtained from renewable energy sources is low and needs to be stepped up by and order of 20 for practical usage or grid integration.This emphasizes the need for high gain DC-DC converters. The proposed DC-DC converter topology combines the simple boost converter and a coupled inductor with voltage double stages to provide high voltage gain. The main advantages of this topolog...

This paper presents a design of the transimpedance amplifier using 0.35μm CMOS technology. In the proposed transimpedance amplifier, feedback resistor RF of conventional transimpedance amplifier has been replaced by NMOS transistor as an active feedback resistor. This circuit operates at 3.3V power supply voltage and for a photocurrent of 0.5μA.The proposed transimpedance amplifier having low n...

To provide a high votage conversion ratio, conventional non-isolated DC-DC boost topologies, which have reduced voltage capability, to operate with extremely duty cycle higher than 0.9. This paper proposes converter is mainly based on the narrow range of ratio achieve extra gain at relatively stress semiconductors. In addition, it does include any magnetic coupling structure. The structure prop...

A new dynamic comparator is presented using modified gain stage followed by latch stage for high speed analog-to-digital converter. The gain stage of proposed comparator is a modified class AB pre-amplifier which makes it suitable for high speed of operation with small delay time and low power. The circuit is simulated in 180 nm process technology using tool Cadence Virtuoso with a supply volta...

This study proposes a method which consists of High step up DC-DC converter with a coupled inductor for distributed generation system. Theoretically the conventional boost converter provides high step up voltage gain but in practical it is limited by reverse recovery problem of diode, effective series impedance of inductors and capacitors and switching losses. High charged current and conductio...