Title :
A Programmable Bandgap Voltage Reference CMOS ASIC
Author :
Kennedy, Gerard ; Rinne, Karl
Author_Institution :
PEI Technol. Circuits & Syst. Res. Centre, Limerick Univ.
Abstract :
The research, design and simulation of a programmable bandgap voltage reference is presented. This reference is novel in that it is programmable via a system on chip bus and it comprises a bandgap voltage reference that is digitally modulated by a first order delta sigma modulator and then smoothed by a passive RC filter. The key design objectives are to provide a programmable output from 0 V to 2.5 V approx. with 10-bit resolution and a temperature coefficient of less than 100 ppm/degC over a temperature range from -55degC to +125degC. Another key design objective is to integrate all passive and active components used into one 0.35 micron full custom mixed signal CMOS ASIC
Keywords :
CMOS integrated circuits; RC circuits; energy gap; mixed analogue-digital integrated circuits; programmable circuits; reference circuits; system-on-chip; -55 to 125 C; 0 to 2.5 V; 0.35 micron; active components; application specific integrated circuit; first order delta sigma modulator; mixed signal CMOS ASIC; passive RC filter; passive components; programmable bandgap voltage reference; system on chip bus; temperature coefficient; Application specific integrated circuits; Band pass filters; Delta modulation; Delta-sigma modulation; Digital modulation; Modulation coding; Photonic band gap; System-on-a-chip; Temperature distribution; Voltage; Bandgap Voltage Reference; Programmable Bandgap Voltage Reference; Programmable Voltage Reference; Voltage Reference;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-8879-8
DOI :
10.1109/IMTC.2005.1604166
