Publication detail

A digitally programmable gain amplifier for ultra-low-power applications

KUMNGERN, M. KHATEB, F. KULEJ, T.

Original Title

A digitally programmable gain amplifier for ultra-low-power applications

Type

journal article in Web of Science

Language

English

Original Abstract

This paper presents a subthreshold CMOS digitally programmable gain amplifier for ultra-low-power signal processing applications. The subthreshold MOS transistor technique is used to achieve low-power consumption of the proposed circuit. The structure is constituted by a class-AB current amplifier which can handle a wide input signal. The gain of the digitally programmable gain amplifier is regulated by using current digital signal level without switch requirements; hence low circuit complexity, low power consumption and low number of devices can be obtained. Also both non-inverting and inverting amplifiers can be easily obtained into one single topology. Using additional resistors to convert the current to the voltage, single-input and differential-input digitally programmable voltage gain amplifiers can be obtained. The proposed circuit is simulated using 0.5 um CMOS technology. The simulation results show that the proposed circuit consumes very low power from ±1.2 V power supply.

Keywords

Digitally programmable gain amplifier, subthreshold circuit, ultra-low-power circuit

Authors

KUMNGERN, M.; KHATEB, F.; KULEJ, T.

RIV year

2015

Released

20. 11. 2015

Publisher

SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS

Location

NETHERLANDS

ISBN

0925-1030

Periodical

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING

Year of study

85

Number

3, IF: 0,468

State

Kingdom of the Netherlands

Pages from

433

Pages to

443

Pages count

11

URL

http://dx.doi.org/10.1007/s10470-015-0621-0

BibTex

@article{BUT115603,
  author="Montree {Kumngern} and Fabian {Khateb} and Tomasz {Kulej}",
  title="A digitally programmable gain amplifier for ultra-low-power applications",
  journal="ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING",
  year="2015",
  volume="85",
  number="3, IF: 0,468",
  pages="433--443",
  doi="10.1007/s10470-015-0621-0",
  issn="0925-1030",
  url="http://dx.doi.org/10.1007/s10470-015-0621-0"
}