Title :
SiGe BiCMOS 12-bit 8-channel low power Wilkinson ADC
Author :
Nambiar, N. ; Ulaganathan, C. ; Chen, S. ; Hale, M. ; Antonacci, A. ; Blalock, B.J. ; Britton, C.L., Jr. ; Ericson, M.N.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Tennessee Univ., Knoxville, TN
Abstract :
A multichannel low power analog-to-digital converter (ADC) designed, fabricated and tested in 0.5-mum Silicon Germanium BiCMOS process is reported. The 12-bit ADC features 8 input channels, each having a 10-Ksps sampling rate and an input voltage range of 1.2 V. The ADC architecture, comprised of a ramp generator, comparators, and a Gray code counter, is discussed along with design details of the primary blocks. Measurement data shows a differential nonlinearity of less than 0.5 LSB and an approximate accuracy of 10 bits.
Keywords :
BiCMOS integrated circuits; analogue-digital conversion; comparators (circuits); low-power electronics; ramp generators; BiCMOS process; SiGe; Wilkinson ADC; comparators; gray code counter; low power analog-to-digital converter; multichannel analog-to-digital converter; ramp generator; size 0.5 mum; word length 12 bit; Aerospace electronics; BiCMOS integrated circuits; Capacitors; Counting circuits; Germanium silicon alloys; Reflective binary codes; Sampling methods; Silicon germanium; Switches; Voltage;
Conference_Titel :
Circuits and Systems, 2008. MWSCAS 2008. 51st Midwest Symposium on
Conference_Location :
Knoxville, TN
Print_ISBN :
978-1-4244-2166-4
Electronic_ISBN :
1548-3746
DOI :
10.1109/MWSCAS.2008.4616883
