Detail publikace

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

AKBARI, M. MAWLOOD HUSSEIN S. HASHIM Y. KHATEB, F. KEA-TIONG, T.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Transconductance; Topology; Current mirrors; Transconductors; Generators; Transistors; Rail to rail amplifiers; Amplifier; current generator; current mirror; operational transconductance amplifier (OTA); rail-to-rail; self-biasing

Autoři

AKBARI, M.; MAWLOOD HUSSEIN S.; HASHIM Y.; KHATEB, F.; KEA-TIONG, T.

Vydáno

26. 7. 2023

Nakladatel

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Místo

PISCATAWAY

ISSN

1557-9999

Periodikum

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS

Ročník

31

Číslo

10

Stát

Spojené státy americké

Strany od

1624

Strany do

1628

Strany počet

5

URL

https://doi.org/10.1109/TVLSI.2023.3285823

BibTex

@article{BUT184976,
  author="AKBARI, M. and MAWLOOD HUSSEIN S. and HASHIM Y. and KHATEB, F. and KEA-TIONG, T.",
  title="A Rail-to-Rail Transconductance Amplifier Based on Current Generator Circuits",
  journal="IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS",
  year="2023",
  volume="31",
  number="10",
  pages="1624--1628",
  doi="10.1109/TVLSI.2023.3285823",
  issn="1557-9999",
  url="https://doi.org/10.1109/TVLSI.2023.3285823"
}