Title :
Zero-crossing detector based reconfigurable analog system
Author :
Lajevardi, Payam ; Chandrakasan, Anantha ; Lee, Hae-Seung
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Massachusetts Inst. of Technol. (MIT), Cambridge, MA, USA
Abstract :
A reconfigurable analog system is presented that implements pipelined ADCs, switched-capacitor filters, and programmable gain amplifiers. Each block employs a zero-crossing based circuit for easy reconfigurability and power efficiency. Configured as a 10-bit ADC, the chip consumes 1.92mW at 50MSPS with ENOB of 8.02b and FOM of 150fJ/conversion-step. A third order Butterworth filter is also demonstrated. The chip is implemented in 65nm technology.
Keywords :
Butterworth filters; analogue-digital conversion; operational amplifiers; switched capacitor filters; pipelined ADC; power 1.92 mW; programmable gain amplifiers; reconfigurable analog system; size 65 nm; switched-capacitor filters; third order Butterworth filter; zero-crossing detector; Capacitors; Low pass filters; Matched filters; Power demand; Resistors; Solid state circuits; Switches;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2010 IEEE Asian
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-8300-6
DOI :
10.1109/ASSCC.2010.5716604
