Projeto de um conversor analógico-digital flash de baixa potência para sensores de temperatura em processo CMOS a 0,18 μm

Translated title of the contribution: Design of a low-power flash analog-to-digital converter chip for temperature sensors in 0.18 μm CMOS process

Al Al, Md. Mamun Ibne Reaz, Jubayer Jalil, Mohd Alauddin, Mohd Ali

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Current paper proposes a simple design of a 6-bit flash analog-to-digital converter (ADC) by process in 0.18 μm CMOS. ADC is expected to be used within a temperature sensor which provides analog data output having a range of 360 mV to 560 mV. The complete system consisting of three main blocks, which are the threshold inverter quantization (TIQ)-comparator, the encoder and the parallel input serial output (PISO) register. The TIQ-comparator functions as quantization of the analog data to the thermometer code. The encoder converts this thermometer code to 6-bit binary code and the PISO register transforms the parallel data into a data series. The design aims to get a flash ADC on low power dissipation, small size and compatible with the temperature sensors. The method is proposed to set each of the transistor channel length to find out the threshold voltage difference of the inverter on the TIQ comparator. A portion design encoder and PISO registers circuit selected a simple circuit with the best performance from previous studies and adjusted to this system. The design has an input range of 285 to 600 mV and 6-bit resolution output. The chip area of the designed ADC is 844.48 x 764.77 μm2 and the power dissipation is 0.162 μW with 1.6 V supply voltage.

Original languageUndefined/Unknown
Pages (from-to)33-40
Number of pages8
JournalActa Scientiarum - Technology
Volume37
Issue number1
DOIs
Publication statusPublished - 2015

Fingerprint

Analog-to-digital Converter
Temperature Sensor
analog to digital converters
Flash
temperature sensors
Temperature sensors
Digital to analog conversion
flash
Inverter
CMOS
Chip
chips
sensor
Quantization
registers
coders
Encoder
analog data
Thermometers
output

Keywords

  • Flash ADC
  • Serial output
  • Temperature sensors

ASJC Scopus subject areas

  • Engineering(all)
  • Mathematics(all)
  • Physics and Astronomy(all)
  • Chemistry(all)
  • Computer Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Projeto de um conversor analógico-digital flash de baixa potência para sensores de temperatura em processo CMOS a 0,18 μm. / Al, Al; Ibne Reaz, Md. Mamun; Jalil, Jubayer; Alauddin, Mohd; Ali, Mohd.

In: Acta Scientiarum - Technology, Vol. 37, No. 1, 2015, p. 33-40.

Research output: Contribution to journalArticle

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