Low-noise amplifier and chip

Abstract

The present invention provides a low-noise amplifier and a chip. The amplifier comprises a bias circuit unit, a first amplification circuit unit, a first adjustment unit, a first signal input end, a second signal input end, and a first signal output end. The bias circuit unit comprises a first voltage output end and a second voltage output end. The first amplification circuit unit comprises a first N-type transistor, a first P-type transistor, a first output capacitor, a second output capacitor, a first impedor, and a second impedor. The first N-type transistor is connected to the first voltage output end and the first signal input end by means of the adjustment unit, and the first P-type transistor is connected to the second voltage output end and the first signal input end by means of the adjustment unit. The source of the first N-type transistor and the source of the first P-type transistor are connected to the second signal input end. The drain of the first N-type transistor and the drain of the first P-type transistor are connected to the impedors, and are respectively connected to the first signal output end and the second signal output end by means of the capacitors.

Description

technical field [0001] The invention relates to integrated circuit technology, in particular to a low-noise amplifier and a chip. Background technique [0002] With the widespread use of electronic devices, the power consumption requirements of electronic devices (especially handheld devices) in the industry are getting higher and higher. This is because the greater the power consumption, the shorter the use time of electronic devices. The requirement of low power consumption is also becoming more and more urgent. [0003] Low-noise amplifiers are important devices in electronic equipment. Generally, low-noise amplifiers have low current utilization. In order to obtain greater gain and greater signal-to-noise ratio, more current needs to be consumed, resulting in low-noise amplifier power consumption. Higher, which in turn leads to higher power consumption of electronic equipment containing low noise amplifiers. Contents of the invention [0004] The invention provides a...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a low noise amplifier and chip to solve the problem of high power consumption of the prior art low noise amplifier

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