Applied result detail

Prototyp obvodu Low Noise Variable Gain Amplifier (LNVGA)

JEŘÁBEK, J.; VRBA, K.; KOTON, J.; HERENCSÁR, N.; KOUDAR, I.

Original Title

Prototyp obvodu Low Noise Variable Gain Amplifier (LNVGA)

English Title

Prototype of Low Noise Variable Gain Amplifier (LNVGA) circuit

Type

Prototype

Abstract

LNVGA je plně diferenční zesilovač optimalizovaný pro nízkošumové aplikace. Jeho zesílení lze nastavovat v několika stupních, z nichž se celý obvod skládá. Přenosový kanál je tvořen těmito bloky: BOTA (Balanced Transconductance Amplifier), BTIA (Balanced Trans-Impedance Amplifier), VGA (Variable Gain Amplifier) a FDCA (Fully Differential Input/Output amplifier). Posledním blokem je pak zabudovaný sigma-delta modulátor. Propojení jednotlivých bloků a nastavení jejich parametrů je velmi variabilní.

Abstract in English

LNVGA is fully-differential amplifier that is designed for low-noise applications. Its gain is controlled in few steps. The circuit is composed by several building blocks that are included on chip. Transfer channel is formed by these blocks: BOTA (Balanced Transconductance Amplifier), BTIA (Balanced Trans-Impedance Amplifier), VGA (Variable Gain Amplifier) a FDCA (Fully Differential Input/Output amplifier). Last optional block is embedded sigma-delta modulator. Interconnection of particular blocks and their settings is very variable.

Keywords

LNVGA, low-noise amplifier, variable-gain amplifier

Key words in English

LNVGA, low-noise amplifier, variable-gain amplifier

Location

Prototypy jsou uloženy na pracovištích: 1) ON Semiconductor, Design Centre Brno, Vídeňská 125, Brno. 2) Ústav telekomunikací, FEKT VUT Purkyňova 118 61200 Brno 3) http://www.utko.feec.vutbr.cz/~jerabekj/lnvga.pdf

Possibilities of use

only the provider uses the result

Licence fee

Use of the result by another entity is possible without acquiring a license (the result is not licensed)

www

http://www.utko.feec.vutbr.cz/~jerabekj/lnvga.pdf