Title :
A 1.8/2.5/3.3V BiCMOS I/O driver with VCC=5V
Author :
Dasgupta, S. ; Rajagopal, Devraj
Author_Institution :
Texas Instrum. India Pvt. Ltd., Bangalore, India
Abstract :
This paper presents an I/O driver specifically suited for magnetic drive preamplifier applications. In order to save mask cost preamplifiers are often built on a BICMOS process which while consisting of a 3V BJT has 1.8V MOS as the only MOS device. The main feature of the I/O is the ability to work directly off 5V pin supply while also being tolerant to 5V over-voltage on the common output bus using only 1.8V MOS and 3V bipolar devices. The I/O driver supports 1.8/2.5/3.3V signalling levels while requiring no extra LDO, to generate the IO supply voltage.
Keywords :
BiCMOS analogue integrated circuits; bipolar transistors; driver circuits; preamplifiers; BJT; BiCMOS I-O driver; BiCMOS process; IO supply voltage; MOS device; bipolar devices; magnetic drive preamplifier application; mask cost preamplifiers; voltage 1.8 V; voltage 2.5 V; voltage 3 V; voltage 3.3 V; voltage 5 V; BiCMOS integrated circuits; CMOS integrated circuits; Junctions; MOS devices; Preamplifiers; Rails; Switches; BICMOS; IO driver; high voltage tolerant;
Conference_Titel :
Circuits and Systems (ISCAS), 2014 IEEE International Symposium on
Conference_Location :
Melbourne VIC
Print_ISBN :
978-1-4799-3431-7
DOI :
10.1109/ISCAS.2014.6865086
