Title :
A 55-mW, 10-bit, 10 Msample/s Nyquist rate CMOS ADC
Author :
Mehr, Iuri ; Singer, Larry
Author_Institution :
Analog Devices Inc., Wilmington, MA, USA
Abstract :
A low power 10-bit converter which can sample input frequencies above 100 MHz is presented. The converter consumes 55 mW when sampling at fs= 40 MHz from a 3 V supply which also includes a bandgap and a reference circuit. It exhibits higher than 9.5 effective number of bits (ENOB) for an input frequency at Nyquist (fin=½f s=20 MHz). The differential (DNL) and integral (INL) nonlinearity of the converter are within ±0.3 LSB and ±0.75 LSB respectively when sampling at 40 MHz, and improve to a 12-bit accuracy level for lower sampling rates. The overall performance is achieved using a pipeline architecture without a dedicated sample/hold circuit at the input
Keywords :
CMOS integrated circuits; analogue-digital conversion; low-power electronics; pipeline processing; 10 bit; 100 MHz; 3 V; 55 mW; A/D convertor; CMOS ADC; Nyquist rate ADC; bandgap circuit; differential nonlinearity; integral nonlinearity; low power converter; pipeline architecture; reference circuit; CMOS technology; Cameras; Circuits; Energy consumption; Frequency conversion; Photonic band gap; Pipelines; Sampling methods; Total harmonic distortion; Ultrasonic imaging;
Conference_Titel :
Custom Integrated Circuits, 1999. Proceedings of the IEEE 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-5443-5
DOI :
10.1109/CICC.1999.777254
