Title :
±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
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.1766
