Title :
Identification of hotspots on FPGA using Time to Digital Converter and distributed tiny sensors
Author :
Mattada, Mahantesh P. ; Magadum, Sachin M. ; Guhilot, Hansraj
Author_Institution :
Sanjay Ghodawat group of Instn., Kolhapur, India
Abstract :
Fully digital time-domain temperature sensors are designed and placed at five different positions within FPGA. Five tiny pulse-generators are used as five temperature sensors. Using manual floor-planning four sensors are placed at four different corners and one at centre. Single 9-bit Time to Digital Converter is utilized for digital output coding. Vernier Time to Digital Converter with 6 picoseconds resolution is presented here. The overall design utilizes 184 logical elements of FPGA i.e. less than 1.5% of the total resources. Implemented temperature sensors give nearly 0.5°C resolution and maximum of ±1.5 LSB nonlinearity is observed over the range.
Keywords :
distributed sensors; field programmable gate arrays; pulse generators; time-digital conversion; FPGA; Vernier time to digital converter; digital output coding; digital time-domain temperature sensors; distributed tiny sensors; hotspots identification; logical elements; manual floor-planning; picoseconds resolution; word length 9 bit; Field programmable gate arrays; Oscillators; Pulse generation; Standards; Temperature measurement; Temperature sensors; FPGA implementation; High resolution; Low cost; Ring oscillator; Temperature Sensor; Time to Digital Converter; Vernier TDC;
Conference_Titel :
Physics and Technology of Sensors (ISPTS), 2015 2nd International Symposium on
Conference_Location :
Pune
DOI :
10.1109/ISPTS.2015.7220119
