Publication detail

A 0.3-V 98-dB Rail-to-Rail OTA in 0.18 um CMOS

KULEJ, T. KHATEB, F.

Original Title

A 0.3-V 98-dB Rail-to-Rail OTA in 0.18 um CMOS

Type

journal article in Web of Science

Language

English

Original Abstract

A new solution for an ultra-low-voltage, ultra-low-power operational transconductance amplifier (OTA) is presented in the paper. The design exploits a three-stage structure with a Reversed Miller Compensation Scheme, where the input stage is based on a non-tailed bulk-driven differential pair. Optimization of the structure for very low supply voltage is discussed. The resulting amplifier outperforms other ultra-low-voltage OTAs in terms of a DC voltage gain and power efficiency, expressed by standard figures of merit. Experimental verification using a 0.18 mu m CMOS technology, with supply voltage of 0.3-V, showed a dissipation power of 13 nW, a DC voltage gain of 98 dB, a gain-bandwidth product of 3.1 kHz and an average slew-rate of 9.1 V/ms at 30 pF load capacitance. The experimental results agree well with simulations.

Keywords

Bulk-driven; operational transconductance amplifier; operational amplifier; low voltage; low power

Authors

KULEJ, T.; KHATEB, F.

Released

6. 2. 2020

Publisher

IEEE

Location

PISCATAWAY

ISBN

2169-3536

Periodical

IEEE Access

Year of study

8

Number

1, IF: 3.745

State

United States of America

Pages from

27459

Pages to

27467

Pages count

9

URL

https://ieeexplore.ieee.org/document/8985331/

Full text in the Digital Library

http://hdl.handle.net/11012/186886

BibTex

@article{BUT163742,
  author="Fabian {Khateb} and Tomasz {Kulej}",
  title="A 0.3-V 98-dB Rail-to-Rail OTA in 0.18 um CMOS",
  journal="IEEE Access",
  year="2020",
  volume="8",
  number="1, IF: 3.745",
  pages="27459--27467",
  doi="10.1109/ACCESS.2020.2972067",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/document/8985331/"
}