Electronic circuit for configuring amplifying circuit configured to output voltage including low noise

Abstract

The invention provides an electronic circuit (200_1) which includes a first current generating circuit (240_1) configured to output a first operating current based on a first operating voltage (VDD1);and an input circuit (210_1, 220_1) configured to: receive a first current corresponding to a first input voltage and a second current corresponding to a second input voltage, wherein the first current and the second current are based on the first operating current; receive a third current and a fourth current that are generated based on the first operating voltage (VDD1); and generate a fifth current corresponding to the second input voltage based on a second operating current. The electronic circuit (200_1) is configured to generate an output voltage associated with a difference between thefirst input voltage and the second input voltage based on the second current, the fourth current and the fifth current, and the fourth current corresponds to the third current.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2019-0074300 filed with the Korean Intellectual Property Office on June 21, 2019, the disclosure of which is hereby incorporated by reference in its entirety. Background technique [0003] Embodiments described herein relate to electronic circuits, and more particularly, to electronic circuits for implementing amplification circuits. [0004] As mobile devices, digital cameras, etc. become popular, the importance of image sensors included in camera devices increases. The image sensor senses light by using a photodiode or the like and outputs a digital image signal by using an analog-to-digital converter (ADC). An image sensor includes a plurality of pixels to sense light. [0005] ADCs included in image sensors include electronic circuitry for processing signals received from pixels. Each of the electronic circuits includes a plurality of transistors...

AI Technical Summary

Problems solved by technology

Transistors operate based on various operating voltages, and operations of transistors cause noise

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