Design and research of RS232 communication circuit used for 0.6um CMOS sensor IC

Author

Sun-Ying ; Zhu-Dazhong

Author_Institution

Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou

fYear

2006

fDate

Oct. 2006

Firstpage

557

Lastpage

559

Abstract

A RS232 transmitter interface circuit used for CMOS sensor IC has been developed in a 0.6mum CMOS technology, which makes it possible to integrate CMOS sensors and subsequent signal processing and communication interface circuits in a single chip. The positive and negative voltages (+7.6V/-6.1V under +5V single supply) are achieved with on-chip charge pump, which are used as supply of transmitter circuit. The transmitter acts as level and logic transfer unit and converts TTL/CMOS level to EIA/TIA RS232 level at 230.4kbps data rate under 3KOmega and 1000pF loads

Keywords

CMOS integrated circuits; electric sensing devices; integrated circuit design; peripheral interfaces; 0.6 micron; 5 V; CMOS sensor IC; CMOS technology; EIA/TIA RS232 level; RS232 communication circuit; RS232 transmitter interface circuit; TTL/CMOS level; charge pump; communication interface circuits; logic transfer unit; signal processing; transmitter circuit; CMOS integrated circuits; CMOS process; CMOS technology; Charge pumps; Clocks; Intelligent sensors; MOS devices; Switches; Transmitters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0160-7

Electronic_ISBN

1-4244-0161-5

Type

conf

DOI

10.1109/ICSICT.2006.306352

Filename

4098165