Open Access±10.5 V 16‐channel programmable pulse generator using high‐voltage BCD CMOS process
Author(s) -
Wang ChuaChin,
Wang DengShian,
Sung TzuChiao,
Wu YiHong,
Shmilovitz Doron
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.1766
Subject(s) - voltage , pulse generator , generator (circuit theory) , electrical engineering , cmos , amplifier , high voltage , materials science , operational amplifier , pulse (music) , engineering , electronic engineering , physics , power (physics) , quantum mechanics
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 mm 2 . Physical measurements justify that the maximum output current is 525 μA, and the largest voltage of the pulses is ±10.5 V.