Technical gazette, Vol. 22 No. 6, 2015.
Original scientific paper
https://doi.org/10.17559/TV-20130914070012
A low power serial output flash ADC in 0,18 μm CMOS process
Al Al
; Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia
Mamun Bin Ibne Reaz
orcid.org/0000-0002-0459-0365
; Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia
Md. Syedul Amin
; Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia
Mohd. Alauddin Mohd. Ali
; Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia
Jae Sung Yu
; School of Electrical and Electronics Engineering, Chung-Ang University, 221, Heuksuk-dong, Dongjak-ku Seoul 156-756, South Korea
Tae Gyu Chang
; School of Electrical and Electronics Engineering, Chung-Ang University, 221, Heuksuk-dong, Dongjak-ku Seoul 156-756, South Korea
Abstract
This paper proposes a simple design of a flash analog-to-digital converter (ADC) in 0,18 μm CMOS technology. This ADC is expected to be used within a temperature sensor, which provides analog data output having a range of 360 mV to 560 mV. This system consists of three main blocks: the threshold inverter quantization (TIQ)-comparator, encoder and parallel input serial output (PISO) register. The design goal is to get a flash ADC with low power dissipation, small size and compatible with the temperature sensors. The method is proposed to set each of the transistor channel length, for finding out the threshold voltage difference of the inverter each on the TIQ comparator. 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 × 764,77 μm2 and the power dissipation is 0,162 μW with 1,6 V supply voltage.
Keywords
CMOS; Comparator; Flash ADC; Temperature Sensor
Hrčak ID:
149371
URI
Publication date:
14.12.2015.
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