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

fYear

2008

fDate

8-10 Dec. 2008

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/EDSSC.2008.4760722

Filename

4760722