Title :
A pseudo-flash ADC for large-channel-volume biomedical sensing applications
Author :
Gong, Cihun-Siyong Alex ; Lu, Jyun-Wei ; Yao, Kai-Wen ; Tsai, Jr-Yu ; Shiue, Muh-Tian
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Jhongli
Abstract :
This paper describes an ADC architecture termed pseudo-flash ADC and intended for biomedical sensing applications. It features high conversion speed which is the same as that of flash ADC, but has significantly lower hardware implementation overhead. Designed in a 0.18-mum standard CMOS technology in accordance with a specification of 250 KSamples/s and 6-bit resolution, the proposed ADC architecture consumes a total of nearly 290 muWunder the nominal supply voltage of 1.8 V, without the requirement of a large number of comparators as compared with the conventional flash ADC architecture.
Keywords :
CMOS analogue integrated circuits; analogue-digital conversion; biosensors; comparators (circuits); CMOS technology; comparators; conversion speed; flash ADC architecture; hardware implementation overhead; large-channel-volume biomedical sensing applications; nominal supply voltage; pseudo-flash ADC; voltage 1.8 V; Animals; Biomedical monitoring; CMOS technology; Circuits; Clocks; Condition monitoring; Energy consumption; Hardware; Humans; Voltage;
Conference_Titel :
Electron Devices and Solid-State Circuits, 2008. EDSSC 2008. IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-2539-6
Electronic_ISBN :
978-1-4244-2540-2
DOI :
10.1109/EDSSC.2008.4760722
