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

fYear

1999

fDate

1999

Firstpage

113

Lastpage

116

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 f_s= 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 (f_in=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;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits, 1999. Proceedings of the IEEE 1999

Conference_Location

San Diego, CA

Print_ISBN

0-7803-5443-5

Type

conf

DOI

10.1109/CICC.1999.777254

Filename

777254