Title :
A 70dB DR 10b 0-to-80MS/s current-integrating SAR ADC with adaptive dynamic range
Author :
Malki, Badr ; Yamamoto, Takaya ; Verbruggen, Bob ; Wambacq, Piet ; Craninckx, Jan
Author_Institution :
imec, Leuven, Belgium
Abstract :
The constant demand for wireless systems pushes engineers and researchers to develop more innovative systems to improve performance. Remarkable improvements have been recently realized on charge-domain SAR ADCs to reach the speed of a few tens of MS/s with medium resolution and low power consumption [1,2]. This has shifted the power bottleneck to the preceding block in a wireless receiver, conventionally the Variable-Gain Amplifier (VGA) that has to charge a few pF of ADC sampling capacitor with rail-to-rail voltage within a few ns with 10b linearity.
Keywords :
amplifiers; analogue-digital conversion; low-power electronics; ADC sampling capacitor; VGA; adaptive dynamic range; charge-domain SAR ADC; current-integrating SAR ADC; gain 70 dB; innovative systems; low power consumption; medium resolution; rail-to-rail voltage; variable-gain amplifier; wireless receiver; wireless systems; Capacitance; Capacitors; MOS capacitors; Noise; Receivers; Solid state circuits;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2012 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4673-0376-7
DOI :
10.1109/ISSCC.2012.6177095
