Title :
A low cross-talk 3-channel analog multiplexer with a 12-bit 25-MS/s pipelined ADC
Author :
Rarbi, F. ; Dzahini, D. ; Gallin-Martel, L. ; Bouvier, Jessica
Author_Institution :
LPSC, IN2P3, Grenoble, France
fDate :
Oct. 27 2012-Nov. 3 2012
Abstract :
A full integrated electronics readout presents many challenges for low power and mixed signal design. The analog to digital converter is a critical stage for the system going from the very front-end stages to digital memories. We present here a 12 bit 25MSPS converter designed to multiplex 3 analog channels through one analog to digital converter. It is a first step easy to extend to a next version capable to multiplexed 64 channels through one pipeline ADC. This design makes the assumption that for multi-channel integrated readout electronics, a high speed converter with an input multiplexer helps to improve the equivalent power dissipation related to each channel. A CMOS low cost 0.35 μm process is used. The dynamic range is 2V over a 3.3V power supply, and the total power dissipation at 25 MHz is approximately 50mW, The crosstalk measured is close to the noise level.
Keywords :
CMOS integrated circuits; analogue-digital conversion; crosstalk; mixed analogue-digital integrated circuits; multiplexing equipment; readout electronics; CMOS low cost process; analog-to-digital converter; crosstalk measurement; digital memories; frequency 25 MHz; full integrated electronics readout; low crosstalk 3-channel analog multiplexer; low power signal design; mixed signal design; multichannel integrated readout electronics; multiplex 3 analog channels; multiplexed 64 channel; noise level; pipelined ADC; power dissipation; size 0.35 mum; voltage 2 V; voltage 3.3 V; word length 12 bit;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-2028-3
DOI :
10.1109/NSSMIC.2012.6551233
