论文信息 - SiGe BiCMOS 12-bit 8-channel low power Wilkinson ADC

SiGe BiCMOS 12-bit 8-channel low power Wilkinson ADC

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.

[1] J. Doernberg,et al. Full-speed testing of A/D converters , 1984 .

[2] L. G. Clonts,et al. Timing and control requirements for a 32-channel AMU-ADC ASIC for the PHENIX detector , 1997, 1997 IEEE Nuclear Science Symposium Conference Record.

[3] Y. Tsividis. Operation and modeling of the MOS transistor , 1987 .

[4] Franco Maloberti,et al. Accurate low-power CMOS autozeroed comparator , 1992 .

[5] Fan Chen,et al. Silicon-Germanium Heterojunction Bipolar Transistors , 2002 .

[6] O.B. Milgrome,et al. A 12 bit analog to digital converter for VLSI applications in nuclear science , 1991, Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference.

[7] D. Harame,et al. SILICON:GERMANIUM HETEROJUNCTION BIPOLAR TRANSISTORS: FROM EXPERIMENT TO TECHNOLOGY , 1994 .