±10.5 V 16-channel programmable pulse generator using high-voltage BCD CMOS process

Author

Chua-Chin Wang ; Deng-Shian Wang ; Tzu-Chiao Sung ; Yi-Hong Wu ; Shmilovitz, D.

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

50

Issue

24

fYear

2014

fDate

11 20 2014

Firstpage

1797

Lastpage

1799

Abstract

A ±10.5 V programmable pulse generator (PPG) fabricated by high-voltage (HV) BCD CMOS technology is demonstrated, where a charge pump composed of five cascaded voltage doublers is included to boost the voltage from 2.5 V to be higher than 10 V. A cross-voltage-domain operational amplifier is proposed to carry out voltage level conversion and amplification. HV analogue switches are also proposed to change the direction of output currents. The proposed 16-channel PPG is realised on silicon, where the die area is 5.43 mm². Physical measurements justify that the maximum output current is 525 μA, and the largest voltage of the pulses is ±10.5 V.

Keywords

BiCMOS integrated circuits; charge pump circuits; operational amplifiers; programmable circuits; pulse generators; switching circuits; voltage multipliers; 16-channel programmable pulse generator; HV analogue switches; cascaded voltage doublers; charge pump; cross-voltage-domain operational amplifier; current 525 muA; high-voltage BCD CMOS process; voltage -10.5 V to 10.5 V;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.1766

Filename

6968730