A Rail-to-Rail Transconductance Amplifier Based on Current Generator Circuits

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F24%3A00560573" target="_blank" >RIV/60162694:G43__/24:00560573 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21460/23:00368948 RIV/00216305:26220/23:PU149231

Výsledek na webu

<a href="https://doi.org/10.1109/TVLSI.2023.3285823" target="_blank" >https://doi.org/10.1109/TVLSI.2023.3285823</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TVLSI.2023.3285823" target="_blank" >10.1109/TVLSI.2023.3285823</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Rail-to-Rail Transconductance Amplifier Based on Current Generator Circuits

Popis výsledku v původním jazyce

In this brief, two current generator circuits are used to design a self-biasing transconductance amplifier. The current generators are configured using two n-channel and p-channel cascode current mirrors by which a high input dynamic range is achieved. Since such a topology creates positive feedback, the transconductance of the circuit is also increased causing higher performance. To ensure the stability of the circuit, constant current sources can be paralleled with the current mirror topologies, which of course are implemented using input drivers. Therefore, two n-channel and p-channel input differential pairs are added to the current generator circuits by which not only a rail-to-rail operation is achieved but also the amplifier is stabilized. The proposed circuit was fabricated in the TSMC 0.18-mu m CMOS process with a silicon area of 54.1 x 71 mu m. Under a 1.8-V supply voltage, the experimental results showed a high input common-mode range (ICMR), while a gain bandwidth (GBW) of 83.9 MHz was measured for a capacitive load of 2 x 6 pF. In addition, a dc gain and a slew rate (SR) of 68.4 dB and 71.7 V/mu s, respectively, were achieved.

Název v anglickém jazyce

A Rail-to-Rail Transconductance Amplifier Based on Current Generator Circuits

Popis výsledku anglicky

In this brief, two current generator circuits are used to design a self-biasing transconductance amplifier. The current generators are configured using two n-channel and p-channel cascode current mirrors by which a high input dynamic range is achieved. Since such a topology creates positive feedback, the transconductance of the circuit is also increased causing higher performance. To ensure the stability of the circuit, constant current sources can be paralleled with the current mirror topologies, which of course are implemented using input drivers. Therefore, two n-channel and p-channel input differential pairs are added to the current generator circuits by which not only a rail-to-rail operation is achieved but also the amplifier is stabilized. The proposed circuit was fabricated in the TSMC 0.18-mu m CMOS process with a silicon area of 54.1 x 71 mu m. Under a 1.8-V supply voltage, the experimental results showed a high input common-mode range (ICMR), while a gain bandwidth (GBW) of 83.9 MHz was measured for a capacitive load of 2 x 6 pF. In addition, a dc gain and a slew rate (SR) of 68.4 dB and 71.7 V/mu s, respectively, were achieved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20206 - Computer hardware and architecture

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS

ISSN

1063-8210

e-ISSN

1557-9999

Svazek periodika

31

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

1624-1628

Kód UT WoS článku

001079713600014

EID výsledku v databázi Scopus

2-s2.0-85163556138